76 results on '"Su stresi"'
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2. Kısıtlı Su Stresi Altında Yağ Gülü (Rosa x damascena Mill.) Fidanlarının Morfolojik Tepkileri ile Toplam Klorofil ve Fenolik Içeriklerinin Değişimi.
- Author
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TİRYAKİ, Tuğba, YILDIRIM, Fatma, and ÇELİK, Civan
- Abstract
Copyright of Journal of Agriculture & Nature / Kahramanmaraş Sütçü İmam Üniversitesi Tarım & Doğa Dergisi is the property of Kahramanmaras Sutcu Imam Universitesi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
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3. Increased Free Radical Scavenging Activity and Consumer Preference in Garden Cress (Lepidium sativum L.) Subjected to Water Stress.
- Author
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Erken, Okan, Pala, Çiğdem Uysal, and Kızılkaya, Bayram
- Subjects
CONSUMER preferences ,FREE radical scavengers ,FLAVONOIDS ,SENSORY evaluation ,IRRIGATION management - Abstract
Copyright of COMU Journal of Agriculture Faculty / ÇOMÜ Ziraat Fakültesi Dergisi is the property of Canakkale Onsekiz Mart University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
- Full Text
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4. Pamuğun vegetatif ve generatif özelliklerinin su stresi ve yapraktan kükürt gübrelemesine tepkisi.
- Author
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ÖDEMİŞ, Berkant, AKIŞCAN, Yaşar, AKGÖL, Batuhan, and CAN, Deniz
- Abstract
Copyright of Mustafa Kemal University Journal of Agricultural Sciences / Mustafa Kemal Üniversitesi Tarım Bilimleri Dergisi is the property of Mustafa Kemal University, Faculty of Agriculture and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
- Full Text
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5. Impact of drought stress on water potential and gas exchange parameters in Macedonian oak (Quercus trojana P.B. Webb.) seedlings
- Author
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Ayşe Deligöz and Esra Bayar
- Subjects
water stress ,quercus trojana ,midday water potential ,photosynthesis ,soluble sugar ,su stresi ,gün ortası su potansiyeli ,fotosentez ,çözünebilir şeker ,Forestry ,SD1-669.5 - Abstract
The increase in the duration and severity of summer droughts due to global climate change will adversely affect forests, and it is very important to examine the drought stress that trees are exposed to as a species due to increasing drought and to understand the response of the species. In this study, the effects of drought stress on physiological (midday water potential, relative water content, gas exchange parameters) and biochemical (total soluble sugar content) characteristics were investigated in Quercus trojana P.B. Webb. seedlings. Under greenhouse conditions, two treatments were applied to 1+0 old seedlings: control (2-3 times a week for watering) and drought stress (no watering for 30 days). Drought stress was repeated twice, consecutively. At the end of the two-month stress cycle, drought stress decreased the midday water potential, relative water content, net photosynthesis rate, stomatal conductance and transpiration rate, while increasing the water use efficiency and total soluble sugar content. In the study, strong relationships were found between midday water potential, net photosynthesis rate, stomatal conductance, transpiration rate and total soluble sugar content.
- Published
- 2021
- Full Text
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6. Sulama Düzeyinin Zeytin Ağaçlarında Stoma İletkenliğinin Günlük ve Mevsimlik Değişimine Etkisi.
- Author
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Uçkay, Ongun and Akkuzu, Erhan
- Abstract
Copyright of COMU Journal of Agriculture Faculty / ÇOMÜ Ziraat Fakültesi Dergisi is the property of Canakkale Onsekiz Mart University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2022
- Full Text
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7. Early drought test with polyethylene glycol in Anatolian black pine [Pinus nigra J.F. Arnold ssp. pallasiana (Lamb.) Holmboe] seeds
- Author
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Bora İmal and Eda Demir
- Subjects
germination ,drought resistance ,provenance ,peg ,anatolian black pine ,water stress ,çimlenme ,kuraklığa dayanıklılık ,orijin ,anadolu karaçamı ,su stresi ,Forestry ,SD1-669.5 - Abstract
In this study, it was aimed to investigate the impact of water stress on germination and determine drought tolerant provenances in different Anatolian Black Pine provenances. Levels of water stress between 0 and -0.8 MPa were applied by using solution of PEG-6000 and germination tests were carried out. Our results revealed that germination values significantly decreased with increasing water stress level among provenances. Accordingly, Nallıhan, K. Hamam, Çerkeş and M.K. Paşa provenances, which represent regions with lower rainfall, had higher germination values up to -0.6 and -0.8 MPa water stress levels compared to other provenances. In this respect, mentioned provenances were found to be more resistant to drought. This result shows that there are variations within species in Anatolian Black Pine in terms of drought tolerances. Using provenances, which are determined to be drought-tolerant in this study, can increase afforestation success in semi-arid regions.
- Published
- 2021
- Full Text
- View/download PDF
8. Examining Seed Germination Rate and Seedlings Gas Exchange Performances of Some Turkish Red Pine Provenances Under Water Stress
- Author
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İsmail Koç
- Subjects
gas exchange ,germination ,peg ,turkish red pine ,water stress ,gaz değişimi ,çimlenme ,kızılçam ,su stresi ,Technology ,Engineering (General). Civil engineering (General) ,TA1-2040 ,Science ,Science (General) ,Q1-390 - Abstract
With climate change, global warming has increased adverse effects on living things in our country. In these adverse effects, water scarcity is the most crucial problem due to the increase in temperature and decrease in precipitation. Forests are the most affected ecosystem among others by water scarcity in our country. This study tried to determine the 5-year-old seeds and 1-year-old seedlings (produced from the same seeds) of some Turkish red pine provenance’ responses to different water stress levels. First, how the water stress levels (0, -0.2, -0.4, -0.6, -0.8 MPa) affect seed germination of these provenances was determined. Secondly, gas exchange parameters [net photosynthesis (Anet), stomatal conductance (gs), transpiration (E), and intrinsic water use efficiency (iWUE)] under different water stress were determined in the seedlings obtained from these species' seeds. As a result of the germination test, Denizli-Çameli (DC) provenance had the highest rate (48%), while Maraş-Suçatı had the lowest rate (29%) under control treatment. The highest germination rate was obtained in Burdur/Bucak provenance (5%) under -0.2 MPa osmotic potential. For gas exchange parameters, Antalya/Gündoğmuş provenance had the highest Anet, gs values while DC provenance had the lowest Anet, gs, and E values when provenance is considered as a single factor. Besides, increasing in irrigation increased Anet, gs, and E while decreased the iWUE. The lowest seedling E under water stress can be explained because this species responds to the water shortage by closing its stomata. Among the Turkish red pine origins, DC provenance showed higher drought tolerance than others.
- Published
- 2021
- Full Text
- View/download PDF
9. Changes of Vine Water Status and Growth Parameters Under Different Canopy Management on cv. Merlot (Vitis vinifera L.).
- Author
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CANDAR, Serkan, KORKUTAL, Ilknur, and BAHAR, Elman
- Subjects
- *
VITIS vinifera , *MERLOT , *BERRIES , *CLIMBING plants , *PLANT-water relationships , *GROWING season - Abstract
The climate is the dominant regulator that determines the cultivation in a viticulture region as it strongly controls vine physiology, vine growth, canopy microclimate, berry quality and finally wine components. However, the effects of climate change force vine producers to find solutions that will facilitate their adaptation processes. The importance of water management in vineyards is becoming more important every day for sustainable viticulture and winemaking. Efficient use of water in vineyards is an important issue to control the yield and to provide the targeted berry quality at the desired level. This experiment was carried out during the 2013-2014 and 2015 growing seasons to evaluate the effects of green pruning practices on water leaf potentials of 12-14 years old grapevines of cv. Merlot (Vitis vinifera L.) grafted onto Kober 5BB in the experimental vineyard of Tekirdag Viticulture Research Institute in Turkey. A completely randomized block design was used: LRMS1, LRMS2, LRMS3 represent three levels of leaf removal treatments on main shoots and LRLS1, LRLS2, LRLS3 represent three levels of leaf removal treatments on lateral shoots. Due to the relatively high soil moisture in vineyard conditions, no extreme and high-water stress levels was observed in experiment years. The main factor controlling the water status in cv. Merlot vines was largely dependent on the meso-climatic conditions and soil water availability during the growing season. However it was observed that increasing of main shoot length give rise to tendency to water stress. It was determined that leaf removal treatments on lateral shoots caused changes in shoot weight, pruning weight and Ravaz index (RI), especially in 2014 whereas the leaf removal treatments on main shoots caused changes in mentioned parameters in 2015. In conclusion, the results show that plant water condition can be managed with summer pruning taking into account of different climatic conditions and different phenological stages. Planning of canopy management practices should be done by considering long- and medium-term meteorological evaluations while short-term planning within vegetation period should be done in relation to weekly and monthly meteorological data. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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10. Merlot üzüm çeşidinde yaprak su potansiyeli ile yaprak alma uygulamalarının sürgün özellikleri üzerine etkileri.
- Author
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BAHAR, Elman, KORKUTAL, İlknur, and AKTAŞ, Fatma Betül
- Abstract
Copyright of Harran Journal of Agricultural & Food Science is the property of Harran University, Faculty of Agriculture and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2022
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11. Bazı Armut Çeşitlerinin (Pyrus comminus L.) Vejetatif Gelişimi Üzerine Su Stresinin Etkisi.
- Author
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KÜÇÜKYUMUK, Cenk and TÜRKELİ, Bahar
- Subjects
PEARS ,WATER purification ,ROOTSTOCKS ,TREE planting ,PLANT growth ,IRRIGATED soils - Abstract
Copyright of Yuzuncu Yil Universitesi Journal of Agricultural Sciences (YYU J Agr Sci) is the property of Yuzuncu Yil University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2021
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12. Kısıtlı Sulama Koşullarında Zeytin Ağaçlarında Özsu Akışı ve Stoma İletkenliğindeki Değişimin Belirlenmesi.
- Author
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ERTEM, Erkal and AKKUZU, Erhan
- Subjects
- *
DEFICIT irrigation , *SAP (Plant) , *STOMATA , *IRRIGATION water , *WATER use , *OLIVE - Abstract
Water stress is one of the important environmental constraints limiting olive productivity. This study was carried on olive (cv. Memecik) trees in Bornova Olive Research Institute in 2017. In this study, changes in stomatal conductance (gs) and sapflow under the deficit irrigation conditions were observed. For this reason, four treatments were applied as follows; K1: non-irrigated (rainfed), K2: 100% ET, K3: 66% ET, K4: 33% ET. In this study (01/06/2017-30/09/2017), irrigation water requirement was ranged from 0 to 912 mm, evapotranspiration (ETa) varied from 91 to 851 mm. The mean stomatal conductance (gs) values calculated for during the period were 293.83 mmol m-2 s-1for K1, 382.62 mmol m-2 s-1 for K2, 371.50 mmol m-2 s-1 for K3 and 293.57 mmol m-2 s-1 for K4. The mean sapflow values calculated during the period were 0.054 ml cm-2 min-1for K1, 0.091 ml cm-2 min-1 for K2, 0.073 ml cm-2 min-1 for K3 and 0.065 ml cm-2 min-1 for K4. The seasonal average of the transpiration rate, which shows the ratio of the sap flow rate of the treatment to the sap flow rate of the control treatment (K2) in olive trees, was found to be 0.59, 1, 0.80, 072 for K1, K2, K3 and K4, respectively. According to the data obtained in this study, the difference between the stomatal conductance values of treatments was statistically significant. An important finding of the research is that there is a positive linear (r2 = 0.528) relationship between stomatal conductance and sap flow. In the light of the data obtained; It can be stated that stoma conductivity (gs) and plant sap flow measurement values can be used to determine the water stress of olive trees. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
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13. Tam Sulama ve Su Stresi Koşullarında Sorgum x Sudan Otu Melezi Çeşitlerinin Gelişme Dönemleri İçin Gerekli Büyüme Gün Derece Değerlerinin Belirlenmesi.
- Author
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GÖNÜLAL, Erdal and SOYLU, Süleyman
- Subjects
- *
REPLICATION (Experimental design) , *FLOWERING time , *SORGHUM , *IRRIGATION , *CLIMATE change - Abstract
This study was conducted to determine number of flowering days under water stress and full irrigation conditions, the days required for the first and second cut time, and the GDD (Growing degree days) of sorghum x sudan grass hybrid varieties under Konya ecological conditions in 2017 and 2018 years. The study conducted in randomized blocks – split plots experimental design with 3 replications, the main parcels were irrigated (S1: Full irrigation; S2: Irrigation 50% of S1), and the sub plots were varieties (Hayday, Tonka, Aneto, Greengo, Sugargraze II, Master BMR, Forage King). In the study, the GDD values for flowering time were determined as 924 oC and 988 oC under full irrigated conditions (S1) in 2017 and 2018 years, respectively. While in water stress conditions (S2), the GDD values were determined as 1115.8 oC and 1078.2 oC in 2017 and 2018, respectively. For the first cutting, the GDD values were determined as 1116.4 oC and 1177.3 oC under full irrigated conditions (S1) in 2017 and 2018, respectively. In water stress (S2) conditions, the GDD values were determined as 1265 oC and 1255.5 oC in 2017 and 2018 years, respectively. In both years, the lowest GDD values were determined from Forage King variety (806.3-869.9 oC), in flowering period. While the highest GDD values were determined from Tonka variety (1110.7 oC) in 2017 and from Tonka, Greengo varieties (1113.3 oC) in 2018. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
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14. Examining Seed Germination Rate and Seedlings Gas Exchange Performances of Some Turkish Red Pine Provenances Under Water Stress.
- Author
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KOÇ, İsmail
- Subjects
GERMINATION ,SEEDLINGS ,GAS exchange in plants ,RED pine ,CLIMATE change - Abstract
Copyright of Duzce University Journal of Science & Technology is the property of Duzce University Journal of Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2021
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15. Kısıntılı sulama ve potasyum gübrelemesinin, mısırda klorofil konsantrasyonu ve membran permeabilitesine etkisi.
- Author
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KUZUCU, Meryem
- Published
- 2021
- Full Text
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16. Effects of irrigation termination dates on grain yield, kernel moisture at harvest and some agronomic traits of maize.
- Author
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GÖNÜLAL, Erdal, SOYLU, Süleyman, and ŞAHİN, Mehmet
- Subjects
IRRIGATION ,GRAIN yields ,AGRONOMY ,CORN ,HARVESTING - Abstract
Copyright of Harran Journal of Agricultural & Food Science is the property of Harran University, Faculty of Agriculture and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2021
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17. Kısıntılı ve Tam Sulama Koşullarında Verim ve Lif Kalitesi Bakımından Üstün İleri Pamuk (Gossypium hirsutum L.) Hatlarının Seleksiyonu.
- Author
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GÖREN, Hatice Kübra and BAŞAL, Hüseyin
- Subjects
- *
DEFICIT irrigation , *COTTON fibers , *FIELD crops , *SEED yield , *COTTONSEED , *COTTON yields , *COTTON , *MICROIRRIGATION - Abstract
This study was carried out at Aydin Adnan Menderes University, Agriculture Faculty Field Crops Experiment fields under drip irrigation system to investigate the response of cotton hybrid populations to water stress in F8 generations in accordance with Augmented randomized complete block design. Each lines and five control varieties (Gloria, Flash, DP332, Candia and Claudia) were planted one row and 12 m long under irrigated (%100: full irrigation) and water stress (%50: deficit irrigation) conditions. The result of the study revealed that in F8 generation; Carmen x Nazilli-503 (line no: 1), DPL-90 x Tamcot-22 (line no: 10), BA-308 x Carmen (line no: 38), DPL-90 x Tamcot-22 (line no: 66) and ST-373 x DPL-90 (line no: 72) cotton advanced lines exhibited the highest seed cotton yield and fiber quality. As for under deficit water stress condition Nazilli-503 x Tamcot-22 (line no: 6), ST-373 x Carmen (line no: 23), BA-308 x Nazilli-503 (line no: 47), BA-308 x Carmen (line no: 72), and Ş-2000 x Tamcot-22 (line no: 90) were found to be drought resistant or tolerant hybrid populations. In order to register new cotton varieties with high yield and fiber quality suitable for full and limited irrigation conditions, selected cotton lines will be tested for variety yield tests. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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18. Waterpad Polimerin Farklı Sulama Düzeylerinde Yetiştirilen Patlıcanın Verim ve Bazı Kalite Özelliklerine Etkisi.
- Author
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SÖYLEMEZ, Selçuk, ESİN, Şükrü, and PAKYÜREK, Ayşe Yıldız
- Subjects
PLANT growing media ,EGGPLANT ,CLIMATE change ,FRUIT yield ,PLANT stems ,WATER supply - Abstract
Copyright of Yuzuncu Yil Universitesi Journal of Agricultural Sciences (YYU J Agr Sci) is the property of Yuzuncu Yil University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2020
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19. Çilek Meyve ve Yaprak Mikro Besin Elementlerinin Farklı Sulama Seviyeleri ile Biyoaktivatör Uygulamasına Tepkileri.
- Author
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ÇELİKTOPUZ, Eser and ÖZEKİCİ, Bülent
- Subjects
IRRIGATION water ,WATER shortages ,FOLIAR diagnosis ,IRRIGATION ,FRUIT ,STRAWBERRIES ,DEFICIT irrigation - Abstract
Copyright of Yuzuncu Yil Universitesi Journal of Agricultural Sciences (YYU J Agr Sci) is the property of Yuzuncu Yil University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2020
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20. Physio-Biochemical and Molecular Responses in Transgenic Cotton under Drought Stress
- Author
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Muhammad Bilal Sarwar, Sajjad Sadıque, Sameera Hassan, Sania Rıaz, Bushra Rashıd, Bahaeldeen Babiker Mohamed, and Tayyab Husnaın
- Subjects
gene expression ,gossypium hirsutum ,physiological analysis ,genetically modified cotton ,water stress ,biochemical analysis ,gen ekspresyonu ,fizyolojik analiz ,genetik modifiye pamuk ,su stresi ,biyokimyasal analiz ,Agriculture (General) ,S1-972 - Abstract
Drought decreases the growth and productivity in cotton. Heat shock proteins accumulate in plants under water stress to protect the biochemical and physiological processes at the molecular level. In this study, plants of T2 segregatinggenerationof transgenic cotton, containing small heat shock protein gene GHSP26 was compared with wild type plants for biochemical, physiological and molecular responses under different periods of drought stress. Transgenic plants accumulated 30% higher proline content than the wild type. Lipid peroxidation activity was reduced in transgenic plants which showed that the drought tolerance efficiency has been improved. Leaf relative water content was 69% and 45% in transgenic and wild-type plants, respectively at 10-day drought stress. Similarly, transgenic plants showed better performance for photosynthesis, stomatal conductance, transpiration and osmotic potential as compared to wild type. Real-time quantitative PCR of GHSP26 and some other drought responsive genes such as Gh-POD, Gh-RuBisCO, Gh-LHCP PSII, Gh-PIP, Gh-TPS and Gh-LEA have supported the higher expression and proved drought tolerance in transgenic plants. The overexpression of GHSP26 in transgenic plants improved the biochemical such as proline content and lipid peroxidation activity and physiological parameters like photosynthesis, osmotic potential and water related attributes. Hence, this study may be extended for selection of homozygous lines and breeding to improve the drought tolerance activity in plants
- Published
- 2017
21. Leaf Defoliation and Leaf Water Potential Effects on Cluster Properties and Yield in cv. Merlot
- Author
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Elman BAHAR, İlknur KORKUTAL, Serkan CANDAR, and Fatma Betül AKTAŞ
- Subjects
Defoliation ,Merlot ,water stress ,bunch characteristics ,Vitis vinifera L ,Bahçe Bitkileri ,General Engineering ,General Earth and Planetary Sciences ,Horticulture ,Yaprak alma ,su stresi ,salkım özellikleri ,General Environmental Science - Abstract
This research was carried out in order to determine the effects of leaf water potential and defoliation applications on the cluster characteristics by using Merlot/41B grafting combination in Chateau Kalpak vineyards in Sarkoy district of Tekirdag province. The trial was carried out in a vineyard for two years in the vegetation period of 2019-2020 and 2020-2021. In the experiment, there were leaf water potential [S0 (Control=no irrigation), S1 (-0.3/-0.5 MPa), S2 (-0.5/-0.7 MPa) and S3(, Bu araştırma Tekirdağ ili Şarköy ilçesinde Chateau Kalpak bağlarında Merlot/41B aşı kombinasyonu kullanılarak yaprak su potansiyeli ve yaprak alma uygulamalarının salkım özellikleri üzerine etkilerini belirlemek amacıyla yapılmıştır. Deneme 2019-2020 ve 2020-2021 vejetasyon periyodunda bağda iki yıl süreyle yürütülmüştür. Yapılan yaprak su potansiyeli uygulamaları [S0 (Kontrol=sulamasız), S1 (-0.3/-0.5 MPa), S2 (-0.5/-0.7 MPa) ve S3 (
- Published
- 2022
- Full Text
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22. Changes in some bioactive compounds of red cabbage (Brassica oleracea L.var.Rubra) under water stress.
- Author
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YILDIRIM, Murat, ERKEN, Okan, and KIZILKAYA, Bayram
- Subjects
DEFICIT irrigation ,CLAY loam soils ,WATER shortages ,MICROIRRIGATION ,COLE crops ,MALIC acid ,IRRIGATION water ,WATER levels - Abstract
Copyright of Mediterranean Agricultural Sciences is the property of Akdeniz Universitesi Ziraat Fakultesi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2019
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23. The response of sugar beet to different irrigation levels and foliar application of micronutrients under drip irrigation system.
- Author
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ÖZBAY, Selçuk and YILDIRIM, Murat
- Subjects
SUGAR beets ,MICROIRRIGATION ,BEETS ,IRRIGATION ,WATER shortages ,WATER levels ,IRRIGATION water - Abstract
Copyright of Mediterranean Agricultural Sciences is the property of Akdeniz Universitesi Ziraat Fakultesi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2019
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24. Biber bitkisinde doğrusal ölçümlerle yaprak alan modelinin oluşturulması.
- Author
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BOZKURT, Sefer and SAYILIKAN MANSUROĞLU, Gülsüm
- Abstract
Copyright of Mustafa Kemal University Journal of Agricultural Sciences / Mustafa Kemal Üniversitesi Tarım Bilimleri Dergisi is the property of Mustafa Kemal University, Faculty of Agriculture and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2019
25. Determining the Yield and Morpho-Physiological Responses of 'Fortuna' Strawberry cv. of Using Different Irrigation Levels with Bio-stimulant Application.
- Author
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ÇELİKTOPUZ, Eser, KAPUR, Burçak, SARIDAŞ, Mehmet Ali, and PAYDAŞ KARGI, Sevgi
- Subjects
STRAWBERRIES ,IRRIGATION ,DROUGHTS ,LEAF area ,STOMATA - Abstract
Copyright of Yuzuncu Yil Universitesi Journal of Agricultural Sciences (YYU J Agr Sci) is the property of Yuzuncu Yil University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
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26. F3:6 Generasyonunda Pamuk (Gossypium hirsutum L.) Döl Sıralarının Tam ve Kısıtlı Sulama Koşullarında Verim ve Lif Kalite Özelliklerinin Belirlenmesi.
- Author
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ULU, Bahar and BAŞAL, Hüseyin
- Abstract
This study was conducted to determine the yield, yield components and fiber quality parameters in a single plant progeny rows at F3:6 generation under the full and deficit irrigation conditions. The experiment was conducted at Adnan Menderes University, Agriculture Faculty in full and deficit conditions. In the full irrigation e×periment, 76 single plants, and in the experiment of deficit irrigation 68 single plants were planted. In addition, planting system was the augmented randomized complete block experimental design by performing 4 replications by 70 cm of row spacing and 12 m of row length. Under deficit irrigation (% 50) genotypic variation was found to be significant for all investigated parameters and, under full irrigation (% 100) condition significant variation was detected for seed cotton yield, fiber length and fiber strength. Based on seed cotton yield and fiber quality parameters of single progeny rows, it was concluded that Carmen × Tamcot-22, Carmen × Nazilli-503, Nazilli-503 × DPL-90, BA-308 × Carmen single progeny rows are promising in the full irrigation conditions, and Nazilli-503 × Tamcot-22, Carmen × Nazilli-503, Nazilli-503 × Şahin 2000, Carmen × Tamcot-22, BA-308 × Nazilli-503 was detected as promising hybrids in the deficit irrigation conditions. [ABSTRACT FROM AUTHOR]
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- 2018
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- View/download PDF
27. Su stresi koşulları altında fındık zuruf kompostu uygulamalarının mısır bitkisinin gelişim parametreleri üzerine etkileri.
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Sezer, Esra Kutlu and Özenç, Damla Bender
- Abstract
Copyright of Journal of Soil Science & Plant Nutrition / Toprak Bilimi ve Bitki Besleme Dergisi is the property of Soil Science Society of Turkey and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
28. Hatay Koşullarında Farklı Su Stres Düzeylerinin Pamuk (Gossypium Hirsutum L.) Bitkisinde Verim ve Vejetatif Özelliklere Etkilerinin Belirlenmesi.
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ÖDEMİŞ, Berkant, CANDEMİR, Derya Kazgöz, DELİCE, Hatice, and KARAZİNCİR, Kerem
- Abstract
Copyright of Agriculture Faculty Journal, Mustafa Kemay University / Ziraat Fakultesi Dergisi, Mustafa Kemal Universitesi is the property of Mustafa Kemal University, Faculty of Agriculture and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
29. Farklı Yaprak Su Potansiyeli (Ψyaprak) ve Salkım Seyreltme Uygulamalarının Sangiovese Üzüm Çeşidinin Fitokimyasal Özellikleri Üzerine Etkileri.
- Author
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BAHAR, Elman, KORKUTAL, İlknur, and KABATAŞ, İpek Ezgi
- Abstract
This study was conducted in order to determine the effects of leaf water potential and cluster thinning applications on phytochemical properties of cv. Sangiovese. Four different leaf water potential (Ψleaf) applications; (Control (Non irrigated) (<0.7MPa), Ψpd nЄ (-0.3;-0.5] MPa, Ψpd nЄ (-0.3;-0.6] MPa, Ψpd nЄ (-0.3;-0.7] MPa) and two different cluster thinning applications; (non cluster thinning and 50% cluster thinning) were made. In this research, it was determined that the application of Ψpd nЄ (-0.3;-0.7 MPa) improves the phytochemical properties more than control treatment. Cluster thinning applications had an insignificant effect on leaf water potentials, whereas %50 Cluster Thinning application had an positive effect on the quality. As a result, Ψpd nЄ(-0.3;-0.7] MPa interval leaf water potential application and when the excessive yield existing, %50 Cluster Thinning could be recomended for the cv. Sangiovese. [ABSTRACT FROM AUTHOR]
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- 2017
- Full Text
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30. Şebin Ceviz Çeşidinin Stres Koşullarına Dayanımının Belirlenmesi.
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ŞİMŞEK, Hüseyin, AKÇA, Yaşar, ÜNLÜKARA, Ali, and ÇEKİÇ, Çetin
- Abstract
This research was carried out with Şebin walnut variety (Juglans regia L.) to determine to the tolerance to stress conditions including salinity and water stress. The experiment was designed by factorial design in randomized blocks and lasted for 2 years. In the research, the plants were exposed with five irrigation water salinity levels (T0= control, T1= 1, T2= 2, T3= 3 and T4= 5 dS.m-1) and three irrigation water rates (S1= 1 liter, S2= 3 liters and S3= 5 liters per week) with four replications. Plants in T3 and T4 treatments, died at the trial of 2 years due to salt stress. While the plants in S1 treatments applied 1 liter of water per week died at 2.68 dS.m-1 levels in soil salinity (ECe); the plants with 3 liters of water application (S2) a week at the 5.34 ds.m-1 levels and the plants with 5 liters water application (S3) a week died at 10.95 ds.m-1 of soil salinity level (ECe). The total weight of plants in T0, T1 and T2 treatments, which survived until the end of experiment, were significantly affected by salinity level, water level and their interaction(p <0.01). Total plant weight decreased with the increase of salinity in irrigation water. Seedling development for T1 and T2 treatments were 23.9% and 37.5 lower than control plants, respectively. Only the effect of the water level was significant (p <0.01) on plant height. Although the plant height was affected by salinity level, differences of application were not significant. The trunk diameter of plants were significantly affected by only water level (p <0.01). The effect of salinity level on the trunk diameter was not significant. The effect of salinity level, water level and their interaction on the plant root and lateral root growth was significant at p <0.01 level. In comparison to the plants in T0, the roots' weight of plants in the T1 and T2 treatments showed a 14.8 and a 30.4 percent reduction in growth.The increase of water level in the S2 and S3 treatments resulted in an increase of 79% and 114% respectively, on the plant root weight compared to S1 treatment. The increase of salinity and the decrease of water reduced lateral root development The number fresh root of plants was significantly affected by only salinity (p <0.01). While the average number of fresh root were 5.3 and 4.1, respectively, it reduced to 0.2 in T2 treatment. Although the average number of fresh root were increased by the increase of irrigation water, differences of application were not significant. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
31. Sangiovese Üzüm Çeşidinde Farklı Yaprak Su Potansiyelleri (Ψyaprak) ve Salkım Seyreltme Uygulamalarının Salkım ve Tane Özellikleri Üzerine Etkileri.
- Author
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BAHAR, Elman, KORKUTAL, İlknur, and KABATAŞ, İpek Ezgi
- Abstract
This research was conducted in Sarkoy district in Tekirdag province. Location of research plot was 40° 37' 49.98" N latitude and 27° 09' 28.00" E in longitude, with 41m altitude, in 2013 vegetation period. Experimental research design was completely randomized block in 4 blocks. Leaf water potential and cluster thinning applications were performed in order to determine cluster and berry characteristics. Four different levels of leaf water potentials (Ψleaf); Control Ψpd nϵ(-0,3; -0,5MPa], Ψpd nϵ(-0,3; -0,6MPa] and Ψpd nϵ(-0,3; -0,7MPa] and two levels of cluster thinning applications (CTA); non cluster thinning (NCT) and 50% cluster thinning (50% CT) were performed in this research. Cluster characteristics (cluster lenght, width, weight, volume, berry number in cluster) and berry characteristics (berry fresh and dry weight, % dry weight, berry volume, berry density, berry skin area calculation, berry skin area / berry volume calculation) were investigated. Ψpd nϵ(-0,3; -0,5MPa] application resulted in highest cluster weight and cluster width; but the lowest in berry dry weight. On the other hand Ψpd nϵ(-0,3; -0,7MPa] application increased the yield and quality values. Control application decreased yield and quality values. Cluster thinning application did not affect the leaf water potential significantly. As a suggestion in cv. Sangiovese leaf water potential should be between nϵ(-0,2; -0,35MPa] in berry set-veraison stage and between nϵ(-0,3; -0,7MPa] in veraison-maturity stage in order to increase the berry sugar concentration (°Brix) 50 % cluster thinning applications should applied. [ABSTRACT FROM AUTHOR]
- Published
- 2017
32. Physio-Biochemical and Molecular Responses in Transgenic Cotton under Drought Stress.
- Author
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SARWAR, Muhammad Bilal, SADIQUE, Sajjad, HASSAN, Sameera, RIAZ, Sania, RASHID, Bushra, MOHAMED, Bahaeldeen Babiker, and HUSNAIN, Tayyab
- Subjects
- *
TRANSGENIC plants , *COTTON , *EFFECT of drought on plants , *HEAT shock proteins of plants , *CROP growth , *AGRICULTURAL productivity - Abstract
Drought decreases the growth and productivity in cotton. Heat shock proteins accumulate in plants under water stress to protect the biochemical and physiological processes at the molecular level. In this study, plants of T2 segregating generation of transgenic cotton, containing small heat shock protein gene (GHSP26) was compared with wild type plants for biochemical, physiological and molecular responses under different periods of drought stress. Transgenic plants accumulated 30% higher proline content than the wild type. Lipid peroxidation activity was reduced in transgenic plants which showed that the drought tolerance efficiency has been improved. Leaf relative water content was 69% and 45% in transgenic and wild-type plants, respectively at 10-day drought stress. Similarly, transgenic plants showed better performance for photosynthesis, stomatal conductance, transpiration and osmotic potential as compared to wild type. Real-time quantitative PCR of GHSP26 and some other drought responsive genes such as Gh-POD, Gh-RuBisCO, Gh-LHCP PSII, Gh-PIP, Gh-TPS and Gh-LEA have supported the higher expression and proved drought tolerance in transgenic plants. The overexpression of GHSP26 in transgenic plants improved the biochemical such as proline content and lipid peroxidation activity and physiological parameters like photosynthesis, osmotic potential and water related attributes. Hence, this study may be extended for selection of homozygous lines and breeding to improve the drought tolerance activity in plants. [ABSTRACT FROM AUTHOR]
- Published
- 2017
33. Kıyı Ege Koşullarında Yetiştirilen Ayvalık Zeytin Fidanlarında Su Stresine Bağlı Bazı Fizyolojik ve Morfolojik Değişimlerin Belirlenmesi.
- Author
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Pouyafard, N., Akkuzu, E., and Kaya, Ü.
- Abstract
This research was carried out on two years old olive (cv Ayvalık) trees grown in pots at field condition in Bornova Olive Research Station, Ministry of Food Agriculture and Livestock in 2011. Some morphological and physiological response of young olive tree to drought stress under different irrigation levels were investigated. For this reason, the experiment consisted of 4 treatments: 1) Irrigated at the level of 100% of the ETa (I100), 2) Irrigated at the level of 66% of the ETa (I66), 3) Irrigated at the level of 33% of the ETa (I33), 4) Non-irrigated (I0). Some physiologic responses of plants such as chlorophyll content (SPAD), stomatal conductance (gs), leaf temperature and air temperature difference (Ty-Ta) and also morphologic responses of the plant the trunk diameter, plant height, shoot diameter, shoot length were investigated. Irrigation water requirement was ranged from 0 to 82.45 liters/plant and actual evapotranspiration was ranged from 10.78 to 86.11 liters/plant. There were not a statistically significant difference among the treatmentsts (except I0) in terms of morphological parameters. In terms of chlorophyll content, statistically significant differences were not found among the treatmentsts (except I0), however, the leaf-air temperature differences and stomatal conductance values statistically significant differences were found among the treatmentsts. Ayvalik olive, is a drought-tolerant cultivar, recommended for growing in arid or water shortage areas. However, as a proposal determining the level of water stress in olive stomatal conductance and leaf and air temperature difference measurements can be used. [ABSTRACT FROM AUTHOR]
- Published
- 2016
34. Ekmeklik Buğday Triticum aestivum L. ' ın Belirli Gelişme Dönemlerindeki Su Stresinin Bazı Kalite Özelliklerine Etkisi
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Mustafa Güler
- Subjects
winter wheat ,water stress ,quality characteristics ,ekmeklik buğday ,su stresi ,kalite özellikleri ,Agriculture (General) ,S1-972 - Abstract
Bu çal ışma, 1993-1995 y ı lları aras ı nda Ankara Üniversitesi Ziraat Fakültesi Kenan Evren Ara şt ı rma ve Uygulama Çiftliğinde ekmeklik buğday ı n farkl ı gelişme dönemlerindeki su stresinin baz ı kalite özelliklerine etkilerini belirlemek amac ı yla yürütülmüştür. Çal ışmada Bezostaja 1, Gün 91 ve Gerek 79 ekmeklik bu ğday çeşitleri kullan ı lmışt ı r. Çeşitlerin belirli gelişme dönemlerindeki su stresine ili şkin sulama uygulamalar ı ; bitkilerin tüm gelişme dönemlerinde stressiz S1 , tane dolumu döneminde stresli S 2 , başaklanma öncesinde stresli S 3 , sapa kalkma döneminde stresli S4 ve bitkilerin tüm gelişme dönemlerinde stresli S 5 olmak üzere yap ı lmışt ı r. Araştı rma sonuçlar ı na göre; ele al ı nan kalite özellikleri bak ı m ı ndan çeşitler ve özellikle su stresleri aras ı nda istatistiki farkl ı l ı klar belirlenmiştir. Kalite özelliklerine ilişkin en yüksek değerler genellikle bitkilerin tüm geli şme dönemlerinde stressiz oldu ğ u uygulamalar ile tane dolumu döneminde stresli oldu ğ u uygulamalarda elde edilmiştir. En düşük değerler ise, bitkilerin tüm gelişme dönemlerinde stresli oldu ğ u uygulamalarda elde edilmiştir. Kalite özelliklerinin tümünde çeşitler aras ı nda istatistiki farkl ı l ı k gözlenmiş olup, özelliklere ilişkin en yüksek değ erler genellikle Bezostaja 1 çeşidinde elde edilmiştir.
- Published
- 2001
35. Orta Anadolu Koşullarında Makarnalık Buğdayın Triticum durum Desf. Farklı Gelişme Dönemlerindeki Su Stresinin Verim ve Verim Öğelerine Etkisi
- Author
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Mustafa Güler
- Subjects
durum wheat ,water stress ,yield ,yield components ,makarnal ı k buğ day ,su stresi ,verim ,verim ö ğ eleri ,Agriculture (General) ,S1-972 - Abstract
1993-1995 y ı lları aras ı nda Ankara Üniversitesi Ziraat Fakültesi Kenan Evren Ara şt ı rma ve Uygulama Çiftliğ i'nde yürütülen bu ara şt ı rmada, makarnal ı k buğday ı n farkl ı gelişme dönemlerindeki su stresinin verim ve verim öğelerine etkisi incelenmi ştir. Kunduru 1149, K ı z ı ltan 91 ve Çakmak 79 makarnal ı k buğ day çeşitlerinin kullan ı ld ığı çal ışmada, sulama uygulamalar ı bitkilerin tüm gelişme dönemlerinde stressiz S1 , başaklanma döneminde stresli S2 , sapa kalkma döneminde stresli S3 ve tüm geli şme dönemlerinde stresli S4 olmak üzere yap ı lm ışt ı r. Araştı rma sonuçları na göre; incelenen özellikler yönünden özellikle su stresleri aras ı nda istatistiki farkl ı l ı klar belirlenmi ştir. Verim ve verim ö ğ elerine ilişkin en yüksek değerler, bitkilerin tüm geli şme dönemlerinde stressiz oldu ğu uygulamalarda elde edilmiştir. En düşük değ erler ise, bitkilerin tüm geli şme dönemlerinde stresli oldu ğ u uygulamalarda elde edilmi ştir. Araşt ı rmada kullan ı lan çeşitler incelenen özellikler yönünden her iki yeti ştirme y ı l ı nda farkl ı performans göstermişlerdir. Bununla birlikte ele al ı nan özelliklerin ikinci y ı l verileri, birinci y ı l verilerine göre genellikle daha yüksek bulunmu ştur
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- 2001
- Full Text
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36. The effects of local rhizobacteria against drought stress in tomato genotypes
- Author
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Ünay, Özgün, Gül, Ayşe, and Ege Üniversitesi, Fen Bilimleri Enstitüsü, Bahçe Bitkileri Ana Bilim Dalı
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Yield ,Bitki Gelişimi ,Physiological Characteristics ,Verim ,Antioxydative Enzymes ,Domates ,Fizyolojik Özellikler ,Water Stress ,Tomato ,Fruit Quality ,Su Stresi ,Meyve Kalitesi ,PGPR ,Plant Growth ,Antioksidatif Enzim Aktivitesi - Abstract
Ege Üniversitesi Ziraat Fakültesi Bahçe Bitkileri Bölümü’ne ait serada 2020 yılında gerçekleştirilen bu çalışmanın amacı ülkemizde farklı illerde yetiştirilen domates bitkilerinden izole edilen yerel kök bakterilerinin Ulusal Gen Bankası’ndan temin edilen 2 yerel domates genotipinde kuraklık stresine etkilerinin belirlenmesidir. Deneme, (1) genotip (97: TR70707 ve 117: TR71378), (2) sulama (tam sulama, kısıtlı sulama) ve (3) kök bakterisi (KB-: kontrol, 113: Bacillus megaterium isolate NUC ve 377: Bacillus cereus strain BBS7) olmak üzere 3 faktörlü düzenlenmiştir. Kök bakterisi inokulasyonu tohum bakterizasyonu şeklinde gerçekleştirilmiş ve tohum ekimi 23 Temmuz 2020’de torf ile doldurulan çok gözlü fide tepsilerine yapılmıştır. Fideler 4-5 gerçek yaprağa ulaştığında (21 Ağustos 2020) seraya alınarak perlit ile doldurulan saksılara dikilmiştir. Bitkilerin besin ve su ihtiyacı damla sulama sistemi ile verilen besin çözeltisi ile karşılanmıştır. Sulamalar (besin çözeltisi uygulaması) bitkilerin su tüketimleri her gün izlenerek, su tüketiminin %100 (tam sulama, kontrol) ve %50’si (kısıtlı sulama, kuraklık) karşılanacak şekilde gerçekleştirilmiştir. Dikimden itibaren 14 gün tüm deneme parsellerine eşit miktarda, su tüketiminin %100’ü kadar su uygulanmıştır. Yetiştiriciliğe 130 gün devam edilmiştir. Kuraklık uygulamasının bitki gelişimini, yaprak klorofil ve karotenoid içeriğini, verimi, meyve iriliğini ve su kullanım etkinliğini azalttığı, meyve kalitesini ise artırdığı belirlenmiştir. Kuraklık stresi altındaki bitkilerin yapraklarında prolin konsantrasyonu ile süperoksit dismutaz (SOD), katalaz (CAT), askorbat peroksidaz (APX), glutatyon redüktaz (GR) enzim aktiviteleri ve lipid peroksidasyon (LPO) seviyesi artmıştır. KB inokulasyonunun bitki gelişimini, yaprak klorofil değerleri ve karotenoid içeriğini, prolin içeriğini artırdığı saptanmıştır. Kuraklık stresi altında KB inokulasyonu SOD, CAT, APX ve GR enzim aktivitelerinde artışa; LPO seviyesinde azalışa neden olmuştur. Morfolojik, fizyolojik ve biyokimyasal analizler TR70707’nin TR71378’e kıyasla kurağa daha tolerant olduğunu göstermiştir. Bununla birlikte, kuraklık stresinde kontrole kıyasla pazarlanabilir verim TR70707’de %53.6, TR71378’de %55.1 oranında azalmıştır. KB inokulasyonunun domates yetiştiriciliğinde kuraklık stresinin olumsuz etkilerini azaltmada etkili olduğu sonucuna varılmıştır., The aim of this study, which was carried out in 2020 in the greenhouse of Horticultural Department of Ege University Faculty of Agriculture, was to determine the effects of native rhizobacteria (RB) strains isolated from the tomato plants grown in different provinces in Turkey on drought tolerances of tomato genotypes provided from National Gene Bank in Izmir. The experiment was arranged to compare 3 factors: (1) genotype (97: TR70707 and 117: TR71378), (2) irrigation (100% ETc -crop evapotranspiration- and 50% ETc) and (3) rhizobacteria (RB-: control, 113: Bacillus megaterium isolate NUC, 377: Bacillus cereus strain BBS7). RB inoculation was carried out as seed bacterization and seed sowing was done into peat on July 23 2020. The seedlings at 4-5 true leaves stage were transplanted in perlite filled containers in the greenhouse on August 21 2020. Nutrient solution was used to cover the nutrient and water requirements of the plants and given by drip irrigation system. The volume of water was determined according to ETc measured daily for a pot in each genotype*irrigation*RB treatment. The first 2 weeks after planting, same amount of water (100% ETc) was applied to the plots both in full dose and deficit irrigation. Plant growing lasted 130 days. It was determined that drought stress decreased plant growth, leaf chlorophyll and carotenoid content, yield, fruit size and water use efficiency, on the other hand increased fruit quality. The amount of proline and superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), glutathione reductase (GR) enzyme activities and lipid peroxidation (LPO) level increased in the leaves of the plants under drought stress. It was determined that RB inoculation increased plant growth, leaf chlorophyll values and carotenoid content and proline content. RB inoculation under drought stress gave rise to increase in SOD, CAT, APX and GR enzyme activities, whereas decrease in LPO level. Morphological, physiological and biochemical analysis showed that TR70707 was more tolerant to drought compared to TR71378. However, in drought stress compared to control, marketable yield decreased by 53.6% in TR70707 and 55.1% in TR71378. It was concluded that RB inoculation was effective in reducing the negative effects of drought stress in tomato cultivation.
- Published
- 2021
37. The effects of rhizobacteria against drought stress in tomato genotypes
- Author
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Aydöner Çoban, Gökçe, Gül, Ayşe, Altunlu, Hakan, and Ege Üniversitesi, Fen Bilimleri Enstitüsü, Bahçe Bitkileri Ana Bilim Dalı
- Subjects
PEG 6000 ,Su Stresi ,Kök Bakterisi ,Proline ,Prolin ,Rhizobacteria ,Domates ,Antioksidan Enzim Aktivitesi ,Antioxidant Enzyme Activity ,Water Stress ,Tomato - Abstract
Bu çalışma TÜBİTAK (117O126) projesi kapsamında, Türkiye'nin farklı illerinde yetiştirilen domates bitkilerinden izole edilen yerel kök bakterilerinin (KB) domates bitkilerinin kuraklığa toleransı üzerine etkilerini belirlemek; etki mekanizmalarını morfolojik, fizyolojik ve biyokimyasal testler ile ortaya koymak amacıyla yürütülmüştür. Denemeler tohum çimlenme ve genç bitki aşamasında PEG 6000 kaynaklı kuraklık stresi altında gerçekleştirilmiştir. In vitro tohum çimlendirme ve in vivo su kültürü yetiştiricilik testleri içeren çalışma tam kontrollü bitki yetiştirme odasında üç aşamalı olarak gerçekleştirilmiştir: (1) Test edilecek domates genotiplerinin seçimi, (2) Test edilecek kök bakterilerinin seçimi, (3) Kök bakterilerinin domateste kuraklık stresine etkilerinin belirlenmesi. Çalışmada test edilen domatesler Ege Tarımsal Araştırma Enstitüsü Ulusal Gen Bankası'ndan temin edilen "yerel domates genotipleri" ve "ticari oturak domates çeşitleri" ve "ticari sırık domates çeşitleri" olmak üzere 3 grupta toplanmıştır. Test edilecek domates genotiplerinin ve KB'lerinin seçiminde ön tarama tohum çimlendirme testi ile yapılmış ve ardından seçilen genotipler veya KB'leri su kültürü ile genç bitki aşamasında değerlendirilmiştir. Tohum çimlendirme denemelerinde kuraklık stresi %4'lük PEG 6000 çözeltisi ile yaratılmış ve 14.günde kök ve sürgün uzunluğu, yaş ağırlık, çimlenme yüzdesi belirlenmiş ve vigor indeksi hesaplanmıştır. Su kültürü denemelerinde kuraklık dozu olarak Ψs= -1.0 MPa kullanılmış, su kültürüne alınan 2-3 gerçek yapraklı fideler 7 gün kontrol uygulamasında tutulduktan sonra kuraklık dozuna kademeli olarak (¼,½, ¾ ve tam doz) her 48 saatte bir artırılarak ulaşılmıştır. Tam doz (-1.0 MPa) uygulamasından 48 saat sonra alınan örneklerde morfolojik ve fizyolojik özellikler belirlenmiştir. Kuraklık stresi altında kontrole kıyasla incelenen özelliklerde meydana gelen değişim oranları dikkate alınarak "Tartılı derecelendirme" yapılmıştır. Tohum çimlendirme testinde genotiplerin seçiminde kullanılan vigor indeksinde % değişim değerleri ile su kültürüne ait Tartılı Derecelendirme toplam puanları arasındaki korelasyonun yerel genotiplerde (r:0.825) ve oturak çeşitlerde (r: 0.709) yüksek düzeyde, sırık çeşitlerde (r: 0.564) orta düzeyde olduğu tespit edilmiştir. TÜBİTAK projesi (117O126) kapsamında izole edilen 49 yerel KB izolatı arasından tohum çimlendirme testi sonrasında seçilen 12 KB izolatı kurağa hassas olarak belirlenen MSC-50 ve Panzer çeşitlerinin genç bitki aşamasında kurağa toleransı üzerine etkileri bakımından değerlendirilmiş ve test edilen çeşitlerin kurağa toleransını artıran 3 KB izolatı (113: Bacillus megaterium isolate NUC-, 204: Bacillus aryabhattai strain NIHHS133, 337: Bacillus cereus strain BBS7) belirlenmiştir. Çalışmanın son aşamasında, belirlenen KB izolatlarının seçilen yerel (kurağa tolerant: TR70707, kurağa hassas: TR40430), ticari oturak (kurağa tolerant:Vitamin, kurağa hassas: MSC-50) ve ticari sırık (kurağa tolerant:Nazar, kurağa hassas:Panzer) domates genotiplerinin kurağa tolaransı üzerine etkileri genç bitki aşamasında değerlendirilmiştir. KB inokulasyonun morfolojik özellikler üzerine etkisi önemli bulunmamakla birlikte fizyolojik ve biyokimyasal özellikler KB uygulamasından etkilenmiştir. KB inokulasyonu kuraklık stresine maruz kalan genç domates bitkilerinin yapraklarında prolin konsantrasyonu ile süperoksit dismutaz, katalaz, askorbatperoksidaz enzim aktiviteleri ve askorbik asit miktarını artırmış, malondialdehit seviyesini ise azaltmıştır. Ayrıca test edilen tüm genotiplerde olmamakla birlikte, kurak koşullar altında KB inokulasyonu membran geçirgenliğinde azalışa, klorofil ve karatenoid içeriğinde artışa yol açmıştır. KB inokulasyonunun domates bitkilerinin kuraklık stresine toleransını artırmada etkili olduğu sonucuna varılmıştır., This study was conducted to determine the effects of native rhizobacteria (RB) against drought stress in tomato plants and to reveal the mechanisms of action through morphological, physiological and biochemical tests. The tested RB were isolated from tomato plants grown in different regions in Turkey within the scope of TUBITAK Project (contract no: 117O126). The experiments were carried out under drought stress created by PEG 6000 at seed germination and young plant stages in growth chamber. The study included 3 main steps: (1) Selection of tomato genotypes to be tested, (2) Selection of RB to be tested, (3) Determination of the effects of RB against drought stress in tomato genotypes. The tomato genotypes tested in the study were categorized in 3 groups as "local tomato genotypes"provided from the National Gene Bankin Izmir and "commercial determinate tomato varieties" and "commercial indeterminate tomato varieties". In theselection of tomato genotypes and RB to be tested, pre-screening was performed by in vitroseed germination test and then the selected genotypes or RB were evaluated at the young plant stage in water culture. In in vitro tests, drought stress was induced by 4% PEG 6000 solution, and after 14 days data regarding to germination percentage, lengths of root and shoot, fresh weight of seedlings were determined and vigor index was calculated. In in vivo experiments by using water culture, drought dose was used as Ψs= -1.0 MPa (full dose) and gradually increased (¼, ½, ¾ and full dose) every 48 hours from 7 days after planting. Forty-eight hours after the full dose application, morphological and physiological properties of the plants were determined. The genotypes tested were classified by weighted ranking method, based on the changes in the PEG treatment compared to the control. The correlations for the relationships between the variations (%) of in vitrovigour index used in the selection of genotypes in the seed germination test and the total scores of weighted ranking in water culture were high for local genotypes (r: 0.825) and determinate varieties (r: 0.709), and moderate for indeterminate varieties (r: 0.564).12 RB isolates were selected according to the results of seed germination test among 49 native RB isolates. These RB were tested on drought sensitive tomato varieties (MSC-50 and Panzer) at the young plant stage, and 3 RB isolates (113: Bacillus megaterium isolate NUC-, 204: Bacillus aryabhattaistrain NIHHS133, 337: Bacillus cereus strain BBS7) were determined to increase drought tolerance of the tested varieties. At the last stage of the study, influence of these RB were evaluated to alleviate drought tolerance of selected tomato genotypes TR70707, Vitamin and Nazar as drought tolerant and TR40430, MSC-50 and Panzer as drought sensitive among local genotypes, and commercial determinate and indeterminate varieties, respectively. Although RB inoculation had no significant effect on morphological properties, physiological and biochemical properties have been affected by the application of RB. RB inoculation increased proline concentration and enzyme activities of superoxide dismutase, catalase, ascorbate peroxidase and amount of ascorbic acid and decreased the level of malondialdehyde in leaves of young tomato plants exposed to drought stress. In addition, although not in all tested genotypes, RB inoculation led to a decrease in membrane permeability and an increase in chlorophyll and carotenoid content under drought stress conditions. It was concluded that RB inoculation is effective in increasing the tolerance of tomato plants against drought stress.
- Published
- 2021
38. Su stresi koşullarında hıyar biitkisinde antioksidatif enzim aktivitelerinde meydana gelen değişmeler
- Author
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Elgün, Kübra, Ergin, Birgül, and ESOGÜ, Ziraat Fakültesi, Tarımsal Biyoteknoloji Anabilim Dalı
- Subjects
PEG 6000 ,Su Stresi ,Cucumis Sativus ,Antioxidative Enzyme ,Antioksidatif Enzim ,Hıyar ,Water Stress - Abstract
Hıyar (Cucumis sativus L.) bitkisinde su stresinin moleküler etkilerinin incelendiği bu çalışmada, 'Beit alpha' hıyar çeşidi fideleri kullanılmıştır. Sera ortamında, saksıda yetiştirilen hıyar bitkilerine, fideler 5–6 yapraklı döneme gelince su stresi oluşturmak amacıyla %10’luk PEG 6000 çözeltisi 15 gün boyunca uygulanmıştır. Kontrol bitkileri ise çeşme suyu ile sulanmıştır. Uygulamanın beşinci ve onbeşinci günlerinde alınan yaprak örneklerinde lipid peroksidasyonu (MDA), yaprak oransal su kapsamı (YOSK), turgor kaybı (TK), prolin miktarı, askorbat peroksidaz (APX), katalaz (CAT) ve peroksidaz (PRX) enzim aktivitelerindeki değişimler incelenmiştir. Araştırma sonucunda, hücresel zararlanmanın göstergesi olan MDA miktarı PEG uygulmasının özellikle 15. gününde belirgin bir artış göstermiştir. Su stres süresi uzadıkça YOSK’un azaldığı, buna karşılık TK’nın arttığı gözlemlenmiştir. Prolin miktarında PEG uygulama süresine bağlı olarak önemli düzeyde artış belirlenmiştir. APX aktivitesi PEG uygulamasının 5. gününde çok fazla değişmezken, 15. günde çok belirgin bir artış göstermiştir. CAT aktivitesinin PEG uygulamalarının 5. gününde kontrolden daha düşük olduğu, ancak 15. günde belirgin bir artış göstererek kontrol bitkilerinden daha yüksek bir düzeye ulaştığı belirlenmiştir. Belirlenen birçok asidik ve bazik PRX'lerden yalnızca Rf değeri 0,28 olarak belirlenen bazik PRX’ın hıyarda su stresine toleransla ilişkili olabileceği sonucuna varılmıştır. Çalışmadan elde edilen tüm sonuçlar değerlendirildiğinde, hıyarda su stresi koşullarında oluşan oksidatif hasara karşı antioksidan enzimlerin etkili olduğu tespit edilmiştir In this study, in which the molecular effects of water stress on cucumber (Cucumis sativus L.) plant were investigated by using seed of varieties 'Beit alpha'. In the greenhouse environment, 10% PEG 6000 solution was applied to cucumber plants grown in pots for 15 days in order to create water stress when the seedlings reach the period of 5-6 leaves. On the other hans, control plants. The differences of lipid peroxidation (MDA), relative water content (RCW), turgor loss (TL), proline amount, peroxidase (PRX), ascorbate peroxidase (APX) and catalase (CAT) between the control and treatment groups were evaluated in leaves that taken the fifth and fifteenth days of water stress. As a result of the research, the amount of MDA, which is an indicator of cellular damage, increased significantly especially on the 15th day of PEG application. It has been observed that as the water stress duration increases, the RCW decreases, whereas the TL increases. A significant increase was determined in the amount of proline depending on the PEG application time. APX activity did not change much on the 5th day of PEG administration, but showed a significant increase on the 15th day. It was determined that CAT activity was lower than the control on the 5th day of PEG applications, but reached a higher level than the control plants by showing a significant increase on the 15th day. It has been concluded that among many acidic and basic PRXs, only basic PRX, whose Rf value is determined as 0.28, may be related to tolerance to water stress in cucumber. When all the results obtained from the study were evaluated, it was found that antioxidant enzymes were effective against oxidative damage in cucumber under water stress conditions
- Published
- 2021
39. Bazı egzotik sebze türlerinin kuraklığa toleransının belirlenmesi
- Author
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Akyürek, Gülhan and Deveci, Murat
- Subjects
PEG6000 Konsantrasyonu ,water stress ,Ziraat ,yaprak su potansiyeli ,Japon yeşillikleri ,su stresi ,Agriculture ,Japanese greens ,leaf water potential ,PEG6000 concentration - Abstract
Bu araştırmada materyal olarak Mibuna (Brassica rapa var. nipposinica), Mizuna (Brassica rapa var. Japonica), Misome (Brassica campestris var. narinosa), Komatsuna (Brassica rapa var. perviridis), Japon hardalı (Brassıca juncea L.), Çin hardalı (Brassica campestris var. chinensis), Kişniş (Coriandrum sativum L.), Frenk soğanı (Allium schoenoprasum), Fesleğen (Ocimum basilicum), Molehiya (Corchorus capsularis ve Corchorus olitoruus) kullanılmıştır. Tüm deneyler, 25/20 °C (gündüz /gece) sıcaklık, %65-70 nem, 12/12 (aydınlık/gece) saatlik fotoperiyodik düzende, 400 µmol m-2s-1 ışık şiddetine sahip iklim odasında gerçekleştirilmiştir. Bitkiler iklim odasında çıkış ve fide dönemlerine kadar damla sulama ile Hoagland besin çözeltisi içeren hidroponik sisteme alınmış, daha sonra 800 ml hacminde multipotlara alınarak Hoagland çözeltisi ile beraber su stresi uygulamalarına başlanmıştır. Deneme tesadüf parselleri deneme desenine göre 5 tekerrürlü olarak kurulmuştur. Her tekerrürde 10 tür (Mibuna, Mizuna, Misome, Komatsuna, Japon hardalı, Çin hardalı, Kişniş, Frenk Soğanı, Fesleğen ve Molehiya ) ve 4 PEG6000 konsantrasyonu (kontrol, -4 MPa, -8 MPa ve -12 MPa) uygulaması bulunmaktadır. Hasat döneminde, bitkilerde bazı morfolojik, fiyolojik ve kimyasal ölçümler yapılmıştır. Elde edilen sonuçlara göre denemede su stresinin artmasına ters orantılı olarak olarak egzotik sebze türlerinin hepsinde; fide boyu, kök deriliği, fide gövde çapı, yaprak sayıları, yaprak ağırlıkları, yaprak kalınlığı, yaprak alanları yaprak yaş ve kuru ağırlıkları, yaprak su potansiyelleri, yaprak klorofil miktarları ile makro mikro besin elementi miktarlarında azalmaların olduğu görülmüştür. Buna karşın ele alınan türlerin yaprak zarar indeksi, yaprak hücrelerinde membran zarar indeksi, yaprak stoma geçirgenlikleri ile yaprak sıcaklıkları, su konsantrasyonu artışıyla doğru orantılı olarak artmıştır. Sonuç olarak; kuraklık problemi olanyerlerde diğer türlere göre kuraklığa daha dayanıklı olduğu görülen Frenk soğanı, Molehiya ve Japon hardalı yetiştiriciliği önerilmektedir. In this study, Mibuna (Brassica rapa var. nipposinica), Mizuna (Brassica rapa var. Japonica), Misome (Brassica campestris var narinosa), Komatsuna (Brassica rapa var. perviridis), Japanese mustard (Brassıca juncea L.), Chinese mustard (Brassica campestris var. chinensis), Coriander (Coriandrum sativum L.), Chives (Allium schoenoprasum), Basil (Ocimum basilicum), Molehiya (Corchorus capsularis and Corchorus olitoruus) were used as plant material. All experiments were performed, 25/20 °C temperature (day / night), 65-70% Rh (relative humiditiy) , 12/12 (light / dark) hour photoperiod, 400 µmol m-2s-1 in a climate room. Hoagland hydroponic solution was given by drip irrigation in hydroponic system during the emergence and seedling periods, and then water stress applications were launched. The experiment consists of 5 replications with randomized plots with 10 species (Mibuna, Mizuna, Misome, Komatsuna, Japanese mustard, Chinese mustard, Coriander, Chives, Basil and Molehiya) and 4 PEG6000 concentrations (Control, -4 MPa, -8 MPa ve -12 MPa). During the harvest period, some morphological, physiological and chemical measurements were made in plants. According to the obtained results from the trial, when the PEG6000 concentrations in the Hoagland hydroponic solution was increased, seedling root length, seedling stem diameter, number of leaves, weight of leaf, leaf thickness, leaf area, leaf fresh and dry weight, leaf water potential, chlorophyll amount in the leaves and amound of macro-micro nutriets decreased. Contrary to these results, the leaf damage index, membrane damage in leaf cells, leaf stoma permeability and leaf temperature values increased with the increasing rates of water stress. As a result; In places with drought problems, chives, Molehiya and Japanese mustard cultivation are recommended, which seem to be more drought-resistant than other species.
- Published
- 2020
40. Investigation of the leaf water potential changes of the first crop sweet sorghum in different irrigation levels
- Author
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Nardalı, Zahide, Ünlü, Mustafa, and Çukurova Üniversitesi, Fen Bilimleri Enstitüsü, Tarımsal Yapılar ve Sulama Anabilim Dalı
- Subjects
Leaf Water Potential ,Yaprak Su Potansiyeli ,Evapotranspiration ,Bitki Su Tüketimi ,Water stress ,Su stresi ,Sorgum ,Sorghum - Abstract
TEZ13169 Tez (Yüksek Lisans) -- Çukurova Üniversitesi, Adana, 2020. Kaynakça (s. 43-49) var. XV, 51 s. :_tablo ; c29 cm. Bu çalışma, 2018 yılında Çukurova Üniversitesi Ziraat Fakültesi Tarımsal Yapılar ve Sulama Bölümü deneme alanında yürütülmüştür. Araştırmada farklı sulama düzeylerinin birinci ürün tatlı sorgum bitkisinde yaprak su potansiyeli ve kimi bitki büyüme parametrelerine etkileri incelenmiştir. Araştırmada, bitki gelişim dönemleri boyunca 4 farklı sulama suyu düzeyleri %100 sulama (I1), %75 sulama (I2), %50 sulama (I3) ve %25 sulama (I4) ile susuz (I0) konuları oluşturulmuştur. Çalışma sonunda; deneme konularına sırasıyla 414.2 mm (I1), 323.5 mm (I2), 232.9 mm (I3) ve 142.2 mm (I4) sulama suları uygulanmıştır. Çalışmada konulara göre elde edilen kuru madde verimi 6020 kg da-1 ile 3380 kg da-1 arasında değişmiş olup, tam sulanan konuda en yüksek kuru madde verimi elde edilmiştir. Çalışmada sorgum bitkisine ait yaprak alan indeksi değerleri 8.41 ile 6.07 arasında değişmiş olup, tam sulama konusundan en yüksek yaprak alan indeksi değeri elde edilmiştir. Sorgum bitkisine ait bitki boyu 300 cm ile 204 cm arasında değişmiş olup, tam sulama konusunda en yüksek bitki boyu kaydedilmiştir. Sulama öncesi yaprak su potansiyeli değerleri sırası ile gelişme dönemi başı, ortası ve dönem sonu ölçümlerinin ortalamaları olarak I1 konusu için (-9 bar, -10.5 bar, -13 bar), I2 konusu için (-10 bar, -12.5 bar, 13.8bar ), I3 konusu için (-11bar, -13bar, -16bar), I4 konusu için (-12 bar, -17 bar, -21 bar) ve I0 konusu için (-14 bar, -19 bar, -24bar) olarak saptanmıştır. This study was carried out in the experimental field of the Agricultural Structures and Irrigation Department of Çukurova University Faculty of Agriculture in 2018. In the research, the effects of different irrigation levels on leaf water potential and some plant growth parameters were investigated in the first crop sorghum plant. In the research, 4 different irrigation water levels, 100% irrigation (I1), 75% irrigation (I2), 50% irrigation (I3) and 25% irrigation (I4) and without irrigation (I0) were created during the plant development periods. In the study; irrigation waters were applied 414.2 mm (I1), 323.5 mm (I2), 232.9 mm (I3) and 142.2 mm (I4) into the treatments, with respectively. The dry matter yield were obtained ranged from 6020 to 3380 kg da-1, and the highest dry matter yield was obtained in the fully irrigation level. The leaf area index values were changed in the study ranged from 8.41 to 6.07 and the highest leaf area index value was obtained in the fully irrigation level. Height measurements of sorghum plant were ranged between 300 cm and 204.3 cm. Leaf water potential values as before irrigation were determined for the beginning, middle and end of period averaged measurements, respectively, for I1 treatment (-9 bar, -10.5 bar, -13 bar), for I2 treatment (-10 bar, -12.5 bar, 13.8bar ), for I3 treatment (-11 bar, -13 bar, -16 bar), for I4 treatment (-12 bar, -17 bar, -21 bar) and for I0 treatment (-14 bar, -19 bar, -24 bar).
- Published
- 2020
41. Determination of public awareness on water stress, water scarcity and water saving: akdeniz university case study
- Author
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Aslı Gezer and Ayca Erdem
- Subjects
Su Tasarrufu ,010504 meteorology & atmospheric sciences ,Philosophy ,Water Scarcity ,Water stress ,Su Kıtlığı ,General Medicine ,010501 environmental sciences ,01 natural sciences ,Water Stress ,Anket ,Su Stresi ,Water Saving ,Public Awareness ,Water saving ,Survey ,Humanities ,Halkın Farkındalığı ,0105 earth and related environmental sciences ,Public awareness - Abstract
Dünyada nüfus hızla artarken, su kaynakları hızla azalmaktadır. Günümüzde su stresi yaşayan nüfusun gelecekte su kıtlığını yaşayacağı öngörülmektedir. Türkiye su azlığı olan ülkeler arasında olup, su fakiri olma tehlikesi altındadır. Dünya genelinde artan su ihtiyacı nedeniyle yerel ölçekten başlayarak çeşitli önlemler alınmaktadır. Bu önlemlerin yanısıra yerel halkın çevresel konularla ilgili farkındalık ve algı düzeyleri de değerlendirilmektedir. Yerelden ülke geneline kadar uygulanan anketler, su yönetimi ile ilgili çalışma ve politikalar üreten kurum, belediye ve bakanlıklara veri sağlamakta ve yol göstermektedir. Bu çalışmada, Akdeniz Üniversitesi yerleşkesi içinde görev yapan, öğrenim gören ve ikamet eden 300 kişinin “su kıtlığı, su stresi ve su tasarrufu” ile ilgili farkındalık düzeylerinin belirlenmesi amacıyla uygulanan anket çalışma sonuçları verilmektedir. Ankete verilen cevaplar SPSS Statistics Base V23 lisanslı program ile analiz edilmiştir. Elde edilen cevaplar, demografik bilgilere (yaş, cinsiyet ve aylık gelir durumu) göre ki-kare analizi uygulanarak değerlendirilmiştir. Anket sonucuna göre, (i) cinsiyet ve yaştan bağımsız olarak katılımcıların büyük çoğunluğunun benzer su kullanım eğilimine sahip olduğu, (ii) su stresi, su kıtlığı ve su tasarrufu açısından kadınların, erkeklere göre daha duyarlı olduğu, (iii) gelir seviyesi yükseldikçe, su kullanımı konusundaki hassasiyetin de arttığı tespit edilmiştir. As the population of the world increases, the water resources rapidly decrease. It is predicted that the population having water stress today will have water shortage in the future. Turkey is among the countries having lack of water and is in danger of becoming a water poor country. Due to the increasing water demand around the world, various measures are being taken starting from the local scale. In addition to these measures, the levels of awareness and perception of public on environmental issues are evaluated. Surveys applied from regional to national scale provide data and guidance to the institution, municipality and ministries that produce works and policies related to water management. In this study, the survey results on the awareness of 300 participants, who work, study and reside within Akdeniz University campus, on "water scarcity, water stress and water saving" are given. The responses to the survey were analyzed with SPSS Statistics Base V23 licensed program. The responses were evaluated according to the demographic information (age, gender and monthly income level) using chi-square analysis. According to the survey results; (i) regardless of gender and age, the vast majority of participants have a similar tendency to use water, (ii) women are more susceptible to water stress, water scarcity and water saving than men, and (iii) as the income level increases, the sensitivity of water use also increases.
- Published
- 2018
- Full Text
- View/download PDF
42. Guano-Induced Germination and Responses of Wheat Seedlings to Guano Under Water Stress Treatments.
- Author
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TASCI, Eda and SEÇKİN DİNLER, Burcu
- Subjects
- *
GUANO , *WHEAT yields , *GERMINATION , *HYDROGEN peroxide , *ABSCISIC acid , *MALONDIALDEHYDE - Abstract
The present study was conducted to investigate the effects of guano (organic fertilizer) on germination and growth parameters of wheat (Triticum durum L. Karakılcık). Guano was applied into germination medium at a rate of 6g /100 ml - for 3 days. Following the germination of seeds, one group was water stressed by applying a water deficit for 7 days and the other group was irrigated ordinarily. The germination rate and the dry weights of germinated seeds were higher in guano-applied group. In vegetative stage, guano treatments improved relative water content (RWC) and relative growth rate (RGR) under water stress. Water stress increased malondialdehyde (MDA) and hydrogen peroxide (H202) content but both parameters did not significantly change in combined water stress and guano treatments. At the seedling stage, ABA (abscisic acid) content decreased in guano group and under water stress but guano treatment increased ABA contents under water stress. It was concluded herein that guano treatments improved germination and growth parameters of wheat seeds and protected the wheat seedlings from oxidative damages under water stress. [ABSTRACT FROM AUTHOR]
- Published
- 2013
43. Yarı Kurak Koşullarda Farklı Sulama Düzeylerinin Salçalık Biberde (Capsicum Annum Cv. Kapija) Verim ve Kalite Parametreleri Üzerine Etkisi.
- Author
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Demirel, K., Genç, L., and Saçan, M.
- Subjects
- *
PEPPER yields , *ARID regions , *IRRIGATION , *AGRICULTURAL technology , *WATER in agriculture - Abstract
The effects of different irrigation levels on yield, quality parameters, e vapotranspiration, water use efficiency, and irrigation water use efficiency were investigated for pepper (Capsicum Annum Cv. Kapija) plant grown in semi -arid region. The Research was carried out in 2009-2010 years in Canakkale province. Drip irrigation method was applied to irrigate the experimental plots with 4 different irrigation levels (I0, I66, I33 and I100). Total irrigation water amounts ranged from 30 to 567 mm in 2009 and from 62 to 489 mm in 2010 were applied according the treatments. Average seasonal evapotranspiration (ETa) were calculated between 322-796 mm with respect to treatments. Pepper yield were obtained 10.89-44.92 and 4.47-63.64 t ha-1in 2009 and 2010, respectively. With respect to irrigation levels, average water use efficiency (WUE) , irrigation water use efficiency (IWUE) were changed between 2.36-6.95 kg m-3 and 0-9.05 kg m-3, respectively. Average yield response factor (ky) was found 1.468. While considering the both 2009 and 2010 years, differences between quality parameters of irrigation treatments (mean fruit weight, fruit width , fruit lenght, fruit thickness and water soluable dry matter) except pH, were statistically significant (p<0.05). [ABSTRACT FROM AUTHOR]
- Published
- 2012
44. Karpuz Bitkisinde Yaprak Su İçeriği ve Klorofil Okumalarından Yararlanılarak Su Stresinin Belirlenmesi.
- Author
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Demirel, K., Genç, L., Çamoğlu, G., and Aşık, Ş
- Subjects
- *
AGRICULTURAL research , *WATERMELONS , *CHLOROPHYLL analysis , *MICROIRRIGATION , *SUBIRRIGATION , *FLOWERING of plants , *PLANT growth , *FRUIT harvesting - Abstract
The objective of this study was to determine plant water stress using Chlorophyll Readings (ChRs) and Leaf Water Content (LWC) measurements for watermelon in the Canakkale region of western Turkey. ChRs and LWC were measured before (BI) and after irrigation (AI). Six different irrigation treatments (S100, (control), S80, S60 S40, S20 and S0 (non-irrigated)) were applied with drip irrigation. Growth stages were divided into three categories: (1) flowering (F), (2) fruit growth (FG) and (3) ripening and harvest (RH). ChRs and LWC for both irrigation treatments and all growing stages were calculated by means of ANOVA using SPSS for Windows statistical software. It was seen that ChRs and LWC decreased from S100 to S0 during growth period. The coefficient of determination (R2) and linear equation between ChRs and LWC for F, FG and RH stages were found to be 0.751, 0.805 and 0.878, respectively. Result of this study has shown that LWC and ChRs measurements can be used to determine water stress especially F period and the beginning FG periods. [ABSTRACT FROM AUTHOR]
- Published
- 2010
45. Zeytin ağaçlarında su stresinin belirlenmesinde bitki özsu akış hızı ve stoma iletkenliği tekniklerinin kullanımı
- Author
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Uçkay, Ongun, Akkuzu, Erhan, Fen Bilimleri Enstitüsü, and Tarımsal Yapılar ve Sulama Anabilim Dalı
- Subjects
Sapflow ,Su Stresi ,Ziraat ,Bitki Ozsu Akışı ,Stomatal Conductance ,Zeytin ,Olive ,Agriculture ,Leaf Porometer ,Yaprak Porometresi ,Stoma İletkenliği ,Water Stress - Abstract
Çalışma, 2018 yılında Tarım ve Orman Bakanlığı, Bornova Zeytincilik Araştırma Enstitüsü Müdürlüğünde, yetişkin Memecik çeşidi zeytin ağaçlarında yürütülmüştür. Çalışmada, kısıtlı sulama koşullarında zeytin ağaçlarında sulama öncesi ve sonrası stoma iletkenliği (gs) ile bitki özsu akışının mevsim içindeki değişimleri izlenmiştir. Ayrıca, yağışa dayalı (K1) ve kontrol (K2) konularında dönem içerisinde 4 farklı günde iki saat arayla stoma iletkenliği (gs) ölçümleri yapılmış olup stoma iletkenliğinin gün içerisindeki değişimi gözlemlenmiştir. Sulama konuları K1: Yağışa dayalı, K2: 7 günde bir 0-90 cm toprak derinliğinde eksilen nemin tarla kapasitesine getirilmesi, K3: K2 konusuna uygulanan su miktarının %66' sının uygulanması ve K4: K2 konusuna uygulanan su miktarının %33' ünün uygulanması şeklinde oluşturulmuştur. Çalışma süresince (01/06/2018-30/09/2018) konulara uygulanan sulama suyu miktarı, 0 ile 911 mm arasında değişmiştir. Bitki su tüketim değerleri ise 132 ile 894 mm arasında değişiklik göstermiştir. Çalışmada sulama öncesi stoma iletkenliği verilerinin sezon ortalamaları, K1, K2, K3 ve K4 konuları için sırasıyla 179.6, 275.6, 250.2 ve 242.4 mmol m-2 s-1 olarak bulunmuştur. Sulama sonrası stoma iletkenliğinin sezon ortalamaları, K2, K3, K4 konuları için sırasıyla 330.7, 293.3 ve 245.1 mmol m-2 s-1 olarak bulunmuştur. Çalışmada elde edilen verilere göre stoma iletkenliği değerlerinde konular arasındaki fark istatistiksel olarak önemli bulunmuştur. Bitki özsu akış ölçümlerinin sezon ortalamaları, K1, K2, K3, K4 konuları için sırasıyla 0.035, 0.080, 0.069 ve 0.054 ml cm-1 dak.-1 olarak hesaplanmıştır. Bitki özsu akış hızı ile stoma iletkenliği arasında sulama öncesi ve sulama sonrası değerlerinde pozitif doğrusal bir ilişkinin (R2= 0.603), (R2= 0.555) olduğu gözlemlenmiştir. Çalışmanın sonucu olarak; zeytin ağaçlarında su stresinin belirlenmesinde, stoma iletkenliği (gs) ve bitki özsu akış hızı ölçüm değerlerinin kullanılabileceği söylenebilir., The study was carried out in the mature olive trees of Memecik variety in 2018 at the Ministry of Agriculture and Forestry, Bornova Olive Research Institute. In this study, changes in stomatal conductivity (gs) and plant sap flow throughout the season were observed in olive trees under deficit irrigation conditions. In addition, stomatal conductivity (gs) measurements were performed on rainfed (K1) and control (K2) treatments every two hours on 4 different days during the period to monitor changes in stomatal conductivity during the day. Tretatments are K1: non-irrigated (rainfed), K2: soil water deficit in a 90 cm soil depth was refilled to field capacity for every 7 days, K3: application of the 66% of water given at K2, K4: application of the 33% of water given at K2. In this study (01/06/2018-30/09/2018), irrigation water requirement was ranged from 0 to 911 mm, evapotranspiration (ETa) varied from 132 to 894 mm. In the study, the seasonal averages of pre-irrigation stomatal conductivity data were found to be 179.6, 275.6, 250.2 and 242.4 mmol m-2 s-1 for K1, K2, K3 and K4, respectively The seasonal averages of post-irrigation stomatal conductivity were found to be 330.7, 293.3, and 245.1 mmol m-2 s-1 for K2,K3 and K4,respectivelyd. According to the data obtained in this study, the difference between the stomatal conductivity values were statistically significant. Seasonal average of plant sap flow measurements were calculated as 0.035, 0.080, 0.069 and 0.054 ml cm-1 min-1 for K1, K2, K3, K4, respectively. It was observed that there was a positive linear relationship (R2= 0.603), (R2= 0.555) between sapflow and pre and post irrigation stomatal conductance values. As a result of the study; It can be said that stoma conductivity (gs) and plant sap flow rate measurement values can be used to determine water stress in olive trees.
- Published
- 2019
46. Kısıtlı sulama koşullarında zeytin ağaçlarında özsu akışı ve stoma iletkenliğindeki değişimin belirlenmesi
- Author
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Ertem, Erkal, Akkuzu, Erhan, Fen Bilimleri Enstitüsü, and Tarımsal Yapılar ve Sulama Anabilim Dalı
- Subjects
Sapflow ,Bitki Özsu Akışı ,Su Stresi ,Ziraat ,Stomatal Conductance ,Zeytin ,Olive ,Agriculture ,Stoma İletkenliği ,Water Stress - Abstract
Çalışma, 2017 yılında Gıda Tarım ve Hayvancılık Bakanlığı, Bornova Zeytincilik Araştırma Enstitüsü Müdürlüğünde, Memecik çeşidi zeytin ağaçlarında yürütülmüştür. Çalışmada, kısıtlı sulama koşullarında zeytin ağaçlarında stoma iletkenliği (gs) ve bitki özsu akışı değişimleri izlenmiştir. Bu amaçla; konular, K1: Susuz; K2: 7 günde bir 0-90 cm toprak derinliğinde eksilen nemin tarla kapasitesine getirilmesi; K3: K2 konusuna uygulanan su miktarının %66'sının uygulanması ve K4: K2 konusuna uygulanan su miktarının %33'ünün uygulanması şeklinde oluşturulmuştur., Çalışma süresince (01/06/2017-30/09/2017) konulara uygulanan sulama suyu miktarı, 0 ile 912.3 mm arasında değişmiştir. Bitki su tüketimi değerleri ise 90.5 ile 850.5 mm arasında değişiklik göstermiştir. Araştırmada, ortalama stoma iletkenliği (gs) değerleri K1 konusu için 293.83 mmol m-2 sn-1, K2 konusu için 382.62 mmol m-2 sn-1, K3 konusu için 371.50 mmol m-2 sn-1, K4 konusu için 293.57 mmol m-2 sn-1 olarak elde edilmiştir. Çalışmada elde edilen verilere göre stoma iletkenliği değerlerinde konular arasındaki fark istatistiksel olarak önemli bulunmuştur. Ortalama bitki özsu akış değerleri ise K1 konusu için 0.054 ml cm-2 dak.-1, K2 konusu için 0.091 ml cm-2 dak.-1, K3 konusu için 0.073 ml cm-2 dak.-1, K4 konusu için 0.065 ml cm-2 dak.-1 olarak elde edilmiştir. Stoma iletkenliği ve bitki özsu akışı arasında istatistiksel olarak anlamlı bir ilişki (r2= 0.528) bulunmuştur. Elde edilen veriler ışığında; zeytin ağaçlarının su stresinin belirlenmesinde, stoma iletkenliği (gs) ve bitki özsu akışı ölçüm değerlerinin kullanılabileceği ifade edilebilir., This study was carried on olive (cv. Memecik) trees in Bornova Olive Research Institute of the Ministry of Food, Agriculture and Livestock, in 2017. In this study, changes in stomatal conductance (gs) and sapflow under the deficit irrigation conditions were observed. For this reason, irrigation treatment; K1: non-irrigated (rainfed), K2: soil water deficit in a 90 cm soil depth was refilled to field capacity for every 7 days, K3: application of the 66% of water given at K2, K4: application of the 33% of water given at K2. This study (01/06/2017-30/09/2017), irrigation water requirement was ranged from 0 to 912.3 mm, evaportanspiration (ETa) varied from 90.5 to 850.5 mm. According to the data obtained in this study, the difference between the stomatal sonductance values was statistically significant. The mean stomatal conductance (gs) values calculated for during the period were 293.83 mmol m-2 s-1for K1, 382.62 mmol m-2 s-1 for K2, 371.50 mmol m-2 s-1 for K3 and 293.57 mmol m-2 s-1 for K4. The mean sapflow values calculated during the period were 0.054 ml cm-2 min-1 for K1, 0.091 ml cm-2 min-1 for K2, 0.073 ml cm-2 min-1 for K3 and 0.065 ml cm-2 min-1 for K4. The determination of stomatal conductance (gs) and sapflow measurements can be used to determine the response of olive trees to water stress. In this study, a statistically significant relationship (r2= 0.528) was found between stomatal conductance and sapflow.
- Published
- 2018
47. Farklı sulama oranlarının taze fasülyede meydana getirdiği fizyolojik, morfolojik ve kimyasal değişikliklerinin belirlenmesi
- Author
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Yarış, Abdulğani
- Subjects
verim ,yaprak su potansiyeli ,deficit irrigation ,kısıtlı sulama ,Water stress ,pod quality ,Su stresi ,yield ,bakla kalitesi ,leaf water potential - Abstract
Bu araştırmada bitkisel materyal olarak erkenci bir bodur fasulye olan “Gina” çeşidi (Phaseolus vulgaris var. Gina) kullanılmıştır. Bitkilerin yetiştiriciliği Namık Kemal Üniversitesi Ziraat Fakültesi Bahçe Bitkileri arazisinde bulunan ısıtmasız plastik yüksek tünelde topraklı tarımda yapılmıştır. Deneme tesadüf blokları deneme desenine göre 4 tekerrürlü olarak kurulmuş ve her tekerrürde 4 sulama oranı (% 0, % 25, % 50, % 75 sulama) ve kontrol (% 100 sulama) yer almıştır. Yetiştirme serasında tohum ekiminin ardından, çiçeklenme dönemine kadar damla sulama ile normal su ihtiyacı giderilen bitkilere daha sonra yapay kuraklık stresi uygulamalarına başlanmıştır. Bu amaçla fasulyenin çiçeklenme döneminin başında dört farklı su uygulaması yapılmıştır. Kontrol parsellerine, bitki kök bölgesindeki kullanılabilir su tutma kapasitesinin % 50?si tüketildiğinde mevcut nemi tarla kapasitesine çıkaracak şekilde sulama suyu uygulanırken, diğer parsellere kontrol parseline uygulanan suyun % 0, % 25, % 50 ve % 75?i uygulanmıştır. Çiçeklenme dönemi başından son hasada kadar olan dönemde yaprak su potansiyeli (MPa); hasat döneminde ise yaprak zararlanma derecesi, yaprak sayısı (adet), yaprak ağırlığı (g), yaprak kalınlığı (mm), yaprak alanı (cm2), bakla ağırlığı (g), bakla çapı (mm), bakla boyu (cm), bitki boyu (cm), bitkideki toplam bakla adedi (adet), bitkideki toplam bakla ağırlığı (g), verim (kg/da), yaprak oransal su içeriği (%), yaprak hücrelerinde membran zararlanması (%), yaprak sıcaklıkları (oC), toplam klorofil (SPAD) ile makro ve mikro besin elementleri miktarları (% ve ppm) ölçülmüştür. Denemede % 100 (kontol) sulama grubunda yer alan bitkilerde ?afak öncesi yaprak su potansiyeli (??ö) değerleri -0,15 ile -0,31 MPa arasında değişmiş ve stressiz-hafif stresli oldukları saptanmıştır. Gün ortası yaprak su potansiyeli (?go) değerlerinin -0,50 ile -1,20 MPa arasında değiştiği ve deneme süresince ??ö ölçümlerindeki sonuçlara paralel olarak bitkilerde stressiz-hafif stres oluştuğu saptanmıştır. % 0 su uygulamasında ??ö değerleri -0,63 MPa?dan -1,47 MPa?a kadar düşerken ?go değerlerinin -0,89 ile -2,71 MPa arasında değiştiği ve bitkilerin şiddetli strese maruz kaldıkları saptanmıştır. Sonuç olarak; sulama oranı arttıkça bitkilerin yaprak sayısı, yaprak ağırlığı, yaprak alanı, bakla ağırlığı, bakla çapı, bakla boyu, bitki boyu, bitkideki toplam meyve adedi, bitkideki toplam bakla ağırlığı, verim, yaprak oransal su içeriği, klorofil miktarı ile makro ve mikro besin elementleri miktarlarında artış olduğu ancak sulama suyu miktarı arttıkça yaprak zararlanma derecesi, yaprak kalınlığı, yaprak hücrelerinde membran zararı ile yaprak sıcaklıkları ortalamalarının azaldığı belirlenmiştir. Fasulyede tam sulama yapılamadığında, % 75 oranında sulama ile fasulyenin verim ve kalite kriterleri değişmemiştir. Cv.Gina (Phaseolus vulgaris var. Gina) which is an early bush bean was used as plant material. The research was contucted in unheated plastic high tunnel in soil at Namik Kemal University, Agricultural Faculty, Department of Horticulture. The experimental design was split plot with four replications and five water restriction levels (0%, 25%, 50%, 75%, and 100% as control) were used in one replicate. After planting the seeds in the greenhouse, irrigation was carried out by drip irrigation according to normal irrigation conditions until the flowering period. After that water stress conditions applied. Five water stress (control, 75, 50, 25 and 0%) regimes were applied. For this purpose, five different water applications were applied to the bean plants during the flowering period. In control parcel, when the water holding capacity in root zone was down to 50% of useful water, the irrigation applied up to maximum water capacity. The more less water of 0, 25, 50% and 75% than control was given to other parcels. Leaf water potential (MPa) was measured during the period from the beginning of flowering period until the last harvest. In harvest period; leaf damage level, leaf number, leaf weight (g), leaf thickness (cm), leaf area (cm2), pod weight (g), pod number per plant, total pod weight per plant (g), total yield (kg/da), leaf relative water content (%), membrane damage on the leaves (%), leaf temperature (oC), total chlorophyll (SPAD) and leaf macro and micro elements were measured. It was determined that pre-dawn leaf water potential (?pd) value of control plants varied from -0,15 to -0,31 MPa and the plants were stress-free or light stress. In parallel with the results of mid-day leaf water potential (?md) value during the experiment, ?pd value ranged from -0,50 to -1,20 Mpa and the plants were stress-free or light stress. While the ?pd value decrase from -0,63 to -1,47 Mpa in no-irrigated parcels, ?md value varied from -0,89 to -2,71 Mpa the plants were under stressful conditions. As a result, leaf water content total chlorophyll and leaf water potential, micro and macro nutrient content were the highest in 100% water treatment. The lowest leaf damage, leaf thickness, membrane damage and leaf temperature were determined in 100% water treatment as well. When bean plants were not irrigated fully and 75%, yield and quality were not change
- Published
- 2018
48. Sangiovese Üzüm Çeşidinde Farklı Yaprak Su Potansiyelleri (Ψyaprak) ve Salkım Seyreltme Uygulamalarının Salkım ve Tane Özellikleri Üzerine Etkileri
- Author
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Bahar, Elman, Korkutal, İlknur, and Kabataş, İlknur Ezgi
- Subjects
water stress ,yaprak su potansiyeli ,sulama ,tane ,salkım seyreltme ,su stresi ,Sangiovese ,salkım ,cluster ,grape berry ,leaf water potential ,irrigation ,cluster thinning - Abstract
[Abstract Not Available] Araştırma Tekirdağ ili Şarköy ilçesi koşullarında, 40° 37' 49.98" K enlem ve 27° 09' 28.00" D boylamda, 41m rakımlı bağda, 2013 yılında, Tesadüf Blokları Deneme Desenine göre 4 tekerrürlü olarak gerçekleştirilmiş olup yaprak su potansiyeli ve salkım seyreltme uygulamalarının Sangiovese üzüm çeşidinin salkım ve tane özellikleri üzerine etkilerini belirlemek amacıyla yapılmıştır. Kontrol (< 7MPa), ?şö n?(-0,3; -0,5MPa], ?şö n?(-0,3; -0,6MPa] ve ?şö n?(- 0,3; -0,7MPa] olmak üzere 4 farklı yaprak su potansiyeli (?yaprak) uygulaması ile; 2 farklı Salkım Seyreltme Uygulaması (SSU), Salkım Seyreltmesiz (SSZ) ve %50 Salkım Seyreltme (%50 SS) olmak üzere planlanmış ve yürütülmüştür. Denemede salkım özellikleri (salkım eni, salkım boyu, salkım ağırlığı, salkım hacmi, salkımdaki tane sayısı) ve tane özellikleri (tane yaş ağırlığı, tane kuru ağırlığı, % kuru ağırlık, tane hacmi, tane özkütlesi, tane kabuk alanı hesap, tane kabuk alanı/ tane hacmi hesap) incelenmiştir. ?şö n?(-0,3; -0,5MPa] uygulaması ile salkım eni ve salkım ağırlığında en yüksek değerler elde edilirken; tane kuru ağırlığı değerlerinde en düşük veriler elde edilmiştir. Öte yandan ?şö n?(-0,3; -0,7MPa] uygulaması verim ve kalite değerlerini arttırmış, Kontrol uygulaması ise azaltıcı etki göstermiştir. Salkım seyreltme uygulamalarının yaprak su potansiyeli üzerinde belirgin etkisi görülmemiştir. Sonuç olarak mevcut Terroir’da Sangiovese üzüm çeşidi için yaprak su potansiyelinin tane tutumu-ben düşme döneminde n?(-0,2; -0,35MPa] arasında ve ben düşme-olgunluk döneminde n?(-0,3; -0,7MPa] arasında tutulması ve gerektiğinde şeker konsantrasyonunu (°Brix) artırmak amacıyla %50 salkım seyreltme (SS) yapılması önerilebilir. This research was conducted in Sarkoy district in Tekirdag province. Location of research plot was 40° 37' 49.98" N latitude and 27° 09' 28.00" E in longitude, with 41m altitude, in 2013 vegetation period. Experimental research design was completely randomized block in 4 blocks. Leaf water potential and cluster thinning applications were performed in order to determine cluster and berry characteristics. Four different levels of leaf water potentials (?leaf); Control ?pd n?(-0,3; -0,5MPa], ?pd n?(-0,3; -0,6MPa] and ?pd n?(-0,3; -0,7MPa] and two levels of cluster thinning applications (CTA); non cluster thinning (NCT) and 50% cluster thinning (50% CT) were performed in this research. Cluster characteristics (cluster lenght, width, weight, volume, berry number in cluster) and berry characteristics (berry fresh and dry weight, % dry weight, berry volume, berry density, berry skin area calculation, berry skin area / berry volume calculation) were investigated. ?pd n?(-0,3; -0,5MPa] application resulted in highest cluster weight and cluster width; but the lowest in berry dry weight. On the other hand ?pd n?(-0,3; -0,7MPa] application increased the yield and quality values. Control application decreased yield and quality values. Cluster thinning application did not affect the leaf water potential significantly. As a suggestion in cv. Sangiovese leaf water potential should be between n?(-0,2; -0,35MPa] in berry set-veraison stage and between n?(-0,3; -0,7MPa] in veraison-maturity stage in order to increase the berry sugar concentration (°Brix) 50 % cluster thinning applications should applied.
- Published
- 2017
49. Determination of yield, yield components and fiber quality parameters of cotton (gossypium hirsutum l.) progeny rows at f3:6 generation under full and deficit irrigation conditions
- Author
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Ulu, Bahar, Başal, Hüseyin, and Adnan Menderes Üniversitesi, Fen Bilimleri Enstitüsü, Tarla Bitkileri Anabilim Dalı, Endüstri Bitkileri Bilim Dalı
- Subjects
Su Stresi ,Verim ve Lif Kalitesi ,Yield and Fiber Quality ,Cotton ,Pamuk ,Water Stress - Abstract
Bu çalışma F3:6 generasyonunda tek bitki döl sıralarının tam ve kısıtlı sulama koşullarında verim, verim bileşenleri ve lif kalite özelliklerinin belirlenmesi amacıyla yapılmıştır. Çalışmanın uzun dönemde ki amacı ise kuraklık stresine dayanıklı pamuk çeşitlerinin geliştirilmesidir. Bu deneme Adnan Menderes Üniversitesi Ziraat Fakültesi uygulama alanında tam (%100) ve kısıtlı (%50) sulama koşullarında yürütülmüştür. Tam sulama denemesinde 76 tek bitki, kısıtlı sulama da 68 tek bitki, Carizma, Gloria, Carmen, Claudia ve Elsa kontrol çeşitleri ile birlikte Augmented deneme desenine göre, 4 tekerrürlü olarak sıra arası 70 cm, sıra üzeri 20 cm, sıra uzunluğu 12 m olacak şekilde ekilmiştir. Tam sulama koşulunda koza açma gün sayısı, bitkide koza sayısı (adet/bitki), lif inceliği (mic) ve üniformite indeksi (%) dışında kalan, kısıtlı sulama da ise lif inceliği (mic) ve üniformite indeksi (%) dışında kalan tüm özellikler bakımından genotipler arasındaki farkın önemli olduğu saptanmıştır. Bu çalışma sonucunda tek bitki döl sıraları; verim, verim bileşenleri ve lif kalite özellikleri bakımından birlikte değerlendirildiğinde; tam sulama koşullarında, Carmen X Tamcot-22, Carmen X Nazilli-503, Carmen X Nazilli-503, Nazilli-503 X DPL-90, BA-308 X Carmen, kısıtlı sulama koşullarında ise Nazilli-503 X Tamcot-22, Carmen X Nazilli-503, Nazilli-503 X Ş-2000, Carmen X Tamcot-22, BA-308 X Nazilli-503, tek bitki döl sıraları ümit verici döl sıraları olarak saptanmıştır. This study was conducted to determine the yield, yield components and fiber quality parameters in a single plant progeny rows at F3:6 generation under, the full and deficit irrigation conditions. The experiment was conducted at Adnan Menderes University, Agriculture Faculty in full and deficit conditions.In the full irrigation experiment, 76 single plants, and in the experiment of deficit irrigation 68 single plants were planted. In addition, planting system was designed based on experimental design of Augumented by performing 4 replications by 70 cm of row spacing and 12 m of row length. Under full irrigation boll number per plant (boll/plant), fiber delicacy (mic), number of days to open cocoon and deficit irrigation conditions fiber delicacy (mic), uniformity index (%) ; ıt was determined that the difference between the genotypes was important in terms of all the features except for the genotypes.In the performed study, along with the result of the evaluation of the yield for the single plant progeny rows, component of the yield, and fiber quality characteristics was determined that Carmen X Tamcot-22, Carmen X Nazilli-503, Carmen X Nazilli-503, Nazilli-503 X DPL-90, BA-308 X Carmen, which is the single progeny rows, are promising in the full irrigation conditions. Also, as known single progeny rows Nazilli-503 X Tamcot-22, Carmen X Nazilli-503, Nazilli-503 X Ş-2000, Carmen X Tamcot-22, BA-308 X Nazilli-503 have been detected as promising hybrids in the deficit irrigation conditions.
- Published
- 2017
50. Effects of water stress and osmoprotectant applıcatıons on the physıologıcal and morphologıcal propertıes of the ‘yamalak sarısı’ olıve (olea europaea l.)
- Author
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Hale, AKYÜZ, ERTAN, Engin, and Adnan Menderes Üniversitesi, Ziraat Fakültesi, Bahçe Bitkileri Bölümü
- Subjects
Yaprak Oransal Su İçeriği ,Chlorophyll ,Su Stresi ,Zeytin ,Olive ,Klorofil ,Glisin Betain ,Leaf Relative Water Content ,Glycine Betaine ,Water Stress - Abstract
Bu çalışma, su stresi altındaki Yamalak Sarısı çeşidi zeytin fidanlarında meydana gelen fizyolojik ve morfolojik değişimleri ortaya koymak ve osmoprotektan uygulamasının etkilerini belirlemek amacıyla 2015 ve 2016 yıllarında yürütülmüştür. 4×2 m aralık ve mesafe ile deneme alanına yerleştirilen Yamalak Sarısı zeytin fidanlarınına, gelişme dönemi boyunca 5 farklı düzeyde sulama suyu ve osmoprotektan uygulanmıştır. Fidanlara uygulanan sulama suyu miktarı U1= 4 günde bir eksilen nemin su tutma kapasitesine getirilmesi, U2= 4 günde bir U1’e uygulanan sulama suyunun %75’inin verilmesi, U3= 4 günde bir U1’e uygulanan sulama suyunun %50’inin verilmesi, U4= 4 günde U1’e uygulanan sulama suyunun %25’inin verilmesi U5= susuz olacak şekilde düzenlenmiştir. Su stresi uygulamalarına ek olarak, fidanlara osmoprotektan olarak 2015 yılında 4 kez, 2016 yılında 5 kez olacak şekilde % 0.5 dozunda glisin betain (GB) uygulaması yapılmıştır. Ayrıca, su düzeyi ve GB uygulamalarının zeytin fidanlarında fizyolojik etkisini belirlemek amacıyla; GB uygulamaları öncesi ve sonrası olacak şekilde 2015 yılında 7 dönem, 2016 yılında ise 6 dönem olacak şekilde, yaprak oransal su içeriği (YOSİ, %), elektrolit sızıntısı (EC, %), klorofil yoğunluğu (KY) ve yaprak yüzey sıcaklığı (oC) değerleri saptanmıştır. Morfolojik değişimleri saptamak için ise zeytin fidanlarında yaprak sayısı (adet) ve alanı (cm2), ortalama sürgün boyu (cm), gövde çapı (mm) değerleri ölçülmüştür. Denemede uygulanan sulama suyu miktarlarının, denemenin yürütüldüğü her iki yılda da, GB uygulanan koşullarda GB uygulanmayanlara göre daha düşük miktarlarda gerçekleştiği belirlenmiştir. Çalışmada genel olarak % 25 su kısıtı ile birlikte GB uygulanmış olan zeytin fidanlarının en iyi gelişim performansını sergilediği, morfolojik değişimler ile de ortaya konmuştur. Su stresi ve osmoprotektan uygulamalarının fizyolojik etkileri ise, dönemlere göre farklılık göstermiş olup, bu anlamda; su stresi ve GB uygulamalarının, YOSİ, EC ve KY üzerine olumlu etkilerinin olduğu saptanmıştır. This study was carried out in 2015-2016 in order to reveal the physiological and morphological changes of the “Yamalak Sarısı” varieties of nursery trees under water stress and to determine the effects of osmoprotectant application. “Yamalak Sarısı” varieties of nursery trees were planted with the distance of 4x2 m. Five different irrigation levels were applied to the trees as follows: U5=rainfed, U1= Field capacity (deficient water amount was given every 4 days), U2= 75% of the U1 level, U3= 50% of the U1 level, U4= 25% of the U1 level. In addition to water stress, glycine betaine (GB) was applied to the “Yamalak Sarısı” varieties of nursery trees for four times in 2015 and five times in 2016 on a 0.5% dose as an osmoprotectant. In order to determine the physiological effect of different water levels and GB applications onto the “Yamalak Sarısı” varieties of nursery, the values of leaf relative water content (RWC, %), electrolyte leakage (EC, %), chlorophyll density (CD) and leaf surface temperature (˚C) were defined during 7 periods in 2015 and 6 periods in 2016, before and after the GB applications. In order to determine the morphological changes, leaf number and leaf area (cm2) were measured. In order to determine the morphological changes in olive nursery trees, leaf number (number) and leaf area (cm2), average shoot sizes (cm), stem diameter (mm) were measured. The amount of irrigation water applied in the study were found to be lower under the conditions where GB was applied than the ones where GB was not applied in each year when tis trial was conducted. As to morphological changes it was found that olive nursery trees with a 25% water deficit level and GB application had the best growth performance. The physiological effects of water stress and osmoprotectant applications were different according to periods, and in this sense, it was determined that water stress and GB applications had positive effects on RWC, EC and CD application. KABUL ONAY SAYFASI iii BİLİMSEL ETİK BİLDİRİM SAYFASI v ÖZET vii ABSTRACT ix ÖNSÖZ xi KISALTMALAR DİZİNİ xvii ŞEKİLLER DİZİNİ xix ÇİZELGELER DİZİNİ xxi 1. GİRİŞ 1 2. KAYNAK ÖZETLERİ 6 2.1. Glisin Betain ile İlgili Yapılan Çalışmalar 6 2.2. Kuraklık ve Su Stresi ile İlgili Yapılan Çalışmalar 10 3. MATERYAL VE YÖNTEM 15 3.1. Materyal 15 3.1.1. Araştırma Alanı ve İklim Özellikleri 15 3.1.2 Araştırmada Kullanılan Zeytin Çeşidi ve Osmoprotektan 17 3.2. Yöntem 18 3.2.1. Zeytin Fidanlarının Dikimi 18 3.2.2.Tarla Kapasitesinin Ölçülmesi 19 3.2.3. Osmoprotektan ve Sulama Uygulamaları 20 3.2.4. Bakım İşlemleri 23 3.2.5. Zeytin Fidanlarında Yapılan Fizyolojik Analizler 24 3.2.5.1. Yaprak oransal su içeriği (YOSİ) (%) 25 3.2.5.2. Elektrolit sızıntısı (%) 27 3.2.5.3. Klorofil yoğunluğu 30 3.2.5.4. Yaprak yüzey sıcaklığı (˚C) 31 3.2.6. Zeytin Fidanlarında Yapılan Morfolojik Ölçümler 32 3.2.6.1. Sürgün uzunluğu (cm) 33 3.2.6.2. Fidan uzunluğu (cm) 33 3.2.6.3. Sürgün yaprak sayısı (adet) 33 3.2.6.4. Fidan gövde çapı (mm) 33 3.2.6.5. Yaprak alanı (cm2) 33 3.2.7. Verilerin Değerlendirilmesi 34 4.BULGULAR 33 4.1. Zeytin Fidanlarında Fizyolojik Analizler ile İlgili Bulgular 35 4.1.1. Yaprak Oransal Su İçeriği (%) 35 4.1.1.1. 2015 ve 2016 yılı birinci dönem 35 4.1.1.2. 2015 ve 2016 yılı ikinci dönem 36 4.1.1.3. 2015 ve 2016 yılı üçüncü dönem 38 4.1.1.4. 2015 ve 2016 yılı dördüncü dönem 39 4.1.1.5. 2015 ve 2016 yılı beşinci dönem 41 4.1.1.6. 2015 ve 2016 yılı altıncı dönem 42 4.1.1.7. 2015 yılı yedinci dönem 44 4.1.2. Elektrolit Sızıntısı (%) 47 4.1.2.1. 2015 ve 2016 yılı birinci dönem 47 4.1.2.2. 2015 ve 2016 yılı ikinci dönem 48 4.1.2.3. 2015 ve 2016 yılı üçüncü dönem 50 4.1.2.4. 2015 ve 2016 yılı dördüncü dönem 51 4.1.2.5. 2015 ve 2016 yılı beşinci dönem 53 4.1.2.6. 2015 ve 2016 yılı altıncı dönem 54 4.1.2.7. 2015 yılı yedinci dönem 55 4.1.3. Klorofil Yoğunluğu 59 4.1.3.1. 2015 ve 2016 yılı birinci dönem 59 4.1.3.2. 2015 ve 2016 yılı ikinci dönem 60 4.1.3.3. 2015 ve 2016 yılı üçüncü dönem 62 4.1.3.4. 2015 ve 2016 yılı dördüncü dönem 63 4.1.3.5. 2015 ve 2016 yılı beşinci dönem 64 4.1.3.6. 2015 ve 2016 yılı altıncı dönem 66 4.1.3.7. 2015 yılı yedinci dönem 67 4.1.4. Yaprak Yüzey Sıcaklığı (˚C) 70 4.1.4.1. 2015 ve 2016 yılı birinci dönem 70 4.1.4.2. 2015 ve 2016 yılı ikinci dönem 72 4.1.4.3. 2015 ve 2016 yılı üçüncü dönem 74 4.1.4.4. 2015 ve 2016 yılı dördüncü dönem 75 4.1.4.5. 2015 ve 2016 yılı beşinci dönem 77 4.1.4.6. 2015 ve 2016 yılı altıncı dönem 78 4.1.4.7. 2015 yılı yedinci dönem 80 4.2. Zeytin Fidanlarında Morfolojik Analizler ve Bulgular 83 4.2.1. Sürgün Uzunluğu (cm) 83 4.2.2. Fidan Uzunluğu (cm) 84 4.2.3. Sürgün Yaprak Sayısı (adet) 86 4.2.4. Fidan Gövde Çapı (mm) 88 4.2.5. Yaprak Alanı (cm2) 90 4.3. Uygulanan Sulama Suyu Miktarı İle İlgili Bulgular 91 5.TARTIŞMA VE SONUÇ 93 KAYNAKLAR 103 ÖZGEÇMİŞ 109
- Published
- 2017
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