8 results on '"Turhan Ece"'
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2. Farklı ortamlarda yetiştirilen çileklerin tuza dayanıklılık fizyolojileri üzerine araştırmalar
- Author
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Turhan, Ece, Eriş, Atilla, Uludağ Üniversitesi/Fen Bilimleri Enstitüsü/Bahçe Bitkileri Anabilim Dalı., and Bahçe Bitkileri Ana Bilim Dalı
- Subjects
Ions ,Growth medium ,Salt stress ,Yetiştirme ortamı ,Agriculture ,Strawberry ,İyonlar ,Amino acid ,Plant growth mediums ,Ziraat ,Çilek ,Amino acids ,Ion ,Tuz stresi ,Amino asitler - Abstract
Perlit ve perlitzeolit (1:1) ortamlarında değişik sürelerle (28, 69 ve 183 gün) farklı konsantrasyonlardaki (0, 500, 1000 ve 2000 mg/L NaCl) tuz uygulamalarının Camarosa, Tioga ve Chandler çilek çeşitlerinde bitki ve meyve özellikleri üzerindeki etkileri ile çeşitlerin tuza karşı reaksiyonları fizyolojik açıdan araştırılmıştır. Yapılan genel değerlendirmelere göre ortamlara, tuz konsantrasyonlarına ve süreleri ile çeşitlere bağlı olarak tuz uygulamalarının yaprak ve kök kuru ağırlığım azalttığı, bitkilerde farklı şiddetlerde zararlanmalara neden olduğu saptanmıştır. Aynı şekilde tuz uygulama süresinin artmasına bağlı olarak bitki canlılığının, meyve sayısının ve toplam verimin azaldığı belirlenmiştir. NaCl uygulamalarının yaprak oransal su kapsamım etkilemediği, turgor kaybım ve toplam klorofil miktarım arttırdığı saptanmıştır. Tuz uygulamaları sonucunda konsantrasyonlara, uygulama sürelerine ve çeşitlere bağlı olarak toplam protein ve toplam amino asit miktarlarında azalış veya artışlar olduğu gözlenmiştir. Uygulamalar sonunda en fazla değişime uğrayan amino asitlerin ise; prolin, aspartik asit, alanın ve glutamik asit olduğu belirlenmiştir. Bitkilerin toprak üstü organlarında, tuz uygulamaları sonucu Na, Cl, Fe ve Mn miktannm arttığı; K miktarının azaldığı; Ca, Mg, P, Zn ve Cu miktarının değişmediği belirlenmiştir. Toprak altı organlarda ise Na, Cl, Zn ve Cu miktarının arttığı; K ve Mg miktarının azaldığı; Ca, P, Fe ve Mn miktarının ise tuz uygulamalarından etkilenmediği gözlenmiştir. Ayrıca tuz uygulamalarının bitkilerin farklı organlarında K:Na oranını azalttığı, Na:Ca oranım ise arttırdığı tespit edilmiştir. Genel olarak tuz uygulamaları meyvede toplam şeker, titre edilebilir asit ve C vitamini miktarını arttırmış, meyve rengini iyileştirmiş; fakat meyve lezzeti artan tuz konsantrasyonu ile birlikte bozulmuştur. Camarosa ve Tioga çilek çeşitleri çoğu parametrede genellikle Chandler'a göre tuza daha dayanıklı bir karakter göstermiştir. Ayrıca perlitzeolit (1:1) ortamının, perlit ortamına oranla, bitkilerin tuza dayanıklılık performansları açısından daha olumlu sonuç verdiği gözlenmiştir. Anahtar kelimeler: Çilek, yetiştirme ortamı, tuz stresi, amino asitler, iyonlar. the effects of salt (NaCl) applications of various concentrations (0, 500, 1000 and 2000 mg/L) for various exposure times (28 days, 69 days, 183 days) on the plant and fruit characteristics of Camarosa, Tioga and Chandler strawberry varieties grown in perlite and perlite:zeolite (1:1) media and physiological responses of the varieties to the salt applications were investigated. According to the general evaluation, it was found that, salt applications reduced the leaf and root dry weight depending on the media, the salt concentrations and the exposure times, also it caused some damages in plants in various levels. Moreover plant viability, fruit number and total yield reduced, depending on the increase in salt exposure time. It was found that, NaCl applications did not effect the relative leaf water content, but increased the turgor losses. Total chlorophyll amount in the leafs was increased as a result of salt applications. At the end of the treatments, it was observed some increases or decreases in the total proteins and amino acids contents depending on the salt concentrations, exposure times and the varieties. As the most variable amino acids, proline, aspartic acid, alanine and glutamic acid were determined under salty conditions in the plants. With the effect of salt applications, the amount of Na, CI, Fe and Mn increased; while the amount of K decreased. The amount of Ca, Mg, P, Zn and Cu did not change in the above ground part of plants. In roots, it was observed that the amount of Na, CI, Zn and Cu increased; the amount of K and Mg decreased; Ca, P, Fe and Mn were not affected from the salt application. In addition, it was determined that the salt applications decreased the K:Na ratio and increased the Na:Ca ratio in various plant parts. In general, it was found that salt applications increased the content of total sugar, titratable acidity and vitamin C in fruit and improved fruit colour. However, the fruit taste became bad by the increased salt concentration The results indicated that, Camarosa and Tioga strawberry varieties had more resistant character than Chandler. In addition, regarding the salt resistant performance of plants, perlite:zeolite (1:1) medium had more effective results than perlite. Key words: Strawberry, growth medium, salt stress, amino acids, ions. 212
- Published
- 2002
3. Physiological, biochemical and mineral dimensions of green bean genotypes depending on Zn priming and salinity.
- Author
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Gulmezoglu, Nurdilek, Aydogan, Cigdem, and Turhan, Ece
- Subjects
EFFECT of zinc on plants ,GREEN bean ,PLANT genetics ,PLANT physiology ,EFFECT of stress on plants ,PLANT development - Abstract
The effects of salinity and zinc (Zn) priming on the physical and mineral composition of green bean genotypes were investigated on two green bean genotypes ('Şeker Fasulye' and 'Local Genotype') by soaking seeds in 0.05% Zn (ZnSO
4 .7H2 O) solution and by exposing to salt stress by applying 50, 100 and 150 mM NaCl after first true leaf emergence. Plants not exposed to salt stress were treated as control. The effects of Zn priming on the salt tolerance of genotypes, fresh and dry weight of plant leaf relative water content (RWC), loss of turgidity (LOT), Na, K, Ca and Zn concentrations in the leaves, stem and root portions of plants were evaluated. The NaCl concentrations led to significant variations in the examined parameters. The highest concentration of salt (150 mM) caused fading in leaves and led to inhibition of growth and development. Salt application generally reduced the fresh and dry weights of plants of both genotypes where Zn priming showed an amendatory effect. Leaf RWC decreased with salt applications while LOT increased but Zn priming had no amendatory effect on these parameters. 'Şeker Fasulye' genotype was found to be relatively more salt tolerant than 'Local Genotype' on the basis of the investigated parameters. Zinc priming decreased the Na and Ca concentrations in plant organs; however, a decrease in K concentration was observed due to increase in NaCl. [ABSTRACT FROM AUTHOR]- Published
- 2016
- Full Text
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4. Changes of Growth, Amino Acids, and Ionic Composition in Strawberry Plants under Salt Stress Conditions.
- Author
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Turhan, Ece and Eris, Atilla
- Subjects
- *
SEEDLINGS , *STRAWBERRIES , *PERLITE , *SALT , *POTASSIUM - Abstract
Seedlings of two strawberry cultivars 'Camarosa' and 'Chandler' were grown using perlite in a greenhouse for 20 days, and then plants were watered with nutrient solution containing 0, 8.5, 17.0, and 34.0 mM sodium chloride (NaCl) for 6 months. Sodium chloride treatments generally reduced the leaf and root dry weight. Relative water content (RWC) of leaves was maintained despite the increased salt concentrations while loss of turgidity was increased by sodium chloride (NaCl) treatments in both cultivars. As the most variable amino acids, aspartic acid, glutamic acid, arginine, proline, serine, and alanine were determined under salt stress in plants. Sodium chloride treatments generally increased sodium (Na) and chloride (Cl) contents in all plant parts. The plants were able to maintain high potassium (K) levels in the aerial parts with the 8.5 mM NaCl treatment. It can be concluded that 'Camarosa' has the ability to osmotic regulation. 'Chandler' also tolerates the salt injury at low salt concentrations. [ABSTRACT FROM AUTHOR]
- Published
- 2009
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5. Growth and Stomatal Behaviour of Two Strawberry Cultivars under Long-Term Salinity Stress.
- Author
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Turhan, Ece and Eriş, Atilla
- Subjects
- *
STRAWBERRIES , *SALT , *PLANT growth , *STOMATA , *PLANT transpiration , *LEAF temperature - Abstract
Sodium chloride (NaCl) treatments were conducted on strawberry plants (Fragaria x ananassa cvs. Camarosa and Chandler) grown under greenhouse conditions. Modified Hoagland solution (one-third strength) containing 0 (control), 8.5, 17.0 and 34.0 mM NaCl was applied to the plants for 6 months. High NaCl concentrations caused serious reductions in growth parameters such as fresh weight (FW) of leaves, stems and roots, leaf area and the number of leaves. Addition of salt to the growth medium caused a reduction in stomatal conductance (Gs) and transpiration rate (E) of Camarosa. Saline water up to 34 mM NaCl did not have any influence on Gs of Chandler. In addition, 34 mM NaCl treatment caused a marked increase in Gs and E of Chandler. On the other hand, leaf temperature (T1) increased with salt treatments in both cultivars. We suggest that the reductions in stomatal conductance and transpiration rate represent adaptive mechanisms to cope with excessive salt in Camarosa. As it can relatively maintain its stomatal conductance and transpiration rate, Chandler also tolerates the salt injury at low salt concentrations. Considering the cultivars, Camarosa was characterised as more salt tolerant than Chandler under saline conditions. [ABSTRACT FROM AUTHOR]
- Published
- 2007
6. Changes of Micronutrients, Dry Weight, and Chlorophyll Contents in Strawberry Plants Under Salt Stress Conditions*.
- Author
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Turhan, Ece and Eris, Atilla
- Subjects
- *
MICRONUTRIENTS , *CHLOROPHYLL , *STRAWBERRIES , *MANGANESE , *SALT , *COPPER - Abstract
Various concentrations of NaCl (0, 500, 1000, and 2000 mg/L) were applied to plants of the “Camarosa” and “Tioga” strawberry varieties for 10 weeks. At the end of the experiment, it was determined that the leaf dry weight increased especially at 500 and 1000 mg/L NaCl treatments when compared to control treatment. However, salt applications did not change total chlorophyll content. With the salt applications, iron (Fe) and manganese (Mn) content increased, while copper (Cu) content did not change in the aerial part of plants in both varieties. On the other hand, zinc (Zn) content increased in the “Tioga” strawberry variety. In the root part of plants, Fe, Zn, Mn and contents did not change according to salt applications in both strawberry varieties. However, 2000 mg/L NaCl of salt applications increased Cu content in the “Camarosa” strawberry variety significantly. [ABSTRACT FROM AUTHOR]
- Published
- 2005
- Full Text
- View/download PDF
7. Bazı bakteri (serratia marcescens ve stenotrophomonas maltophilia) ve potasyum nitrat uygulamalarının biber bitkisinin tuza toleransı üzerine etkileri
- Author
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Alveroğlu, Volkan, Turhan, Ece, and ESOGÜ, Fen Edebiyat Fakültesi, Tarla Bitkileri
- Subjects
Ions ,Potasyum ,Bacteria ,Capsicum Annuum ,Pepper ,Tuz Stresi ,Bakteri ,Potassium ,Salt Stress ,Biber ,İyonlar - Abstract
Sıla F1 biber çeşidinde fide döneminde tuz stresi koşullarında bakteri ve potasyum uygulamalarının etkileri araştırılmıştır. Denemede tuz sodyum klorür (NaCl) formunda, Potasyumlu gübre olarak, potasyum nitrat (KNO3) ile Serratia marcescens ve Stenotrophomonas maltophilia bakterileri kullanılmıştır. Bitkiler sera koşullarında ortalama 30/17 ºC sıcaklıkta (gündüz/gece) ve ~ % 50 nemde yetiştirilmiştir. Fide dikiminden 5 gün sonra, bitkiler 4-5 yapraklı olunca kök bölgesine bakteri solüsyonundan 10 mL enjekte edilmiş ve NaCl ve potasyum (K) uygulamalarına başlanmıştır. Ana uygulama olarak, 0 mM (Kontrol), 50 mM, 100 mM ve 150 mM NaCl uygulanmıştır. Alt uygulamalar ise; Kontrol, Stenotrophomonas maltophilia, Serratia marcescens, Stenotrophomonas maltophilia+50 mM Potasyum, Serratia marcescens+50 mM Potasyum ve 50 mM Potasyum olarak düzenlenmiştir. Tuz stresi, bitki gelişimini engelleyici ve kuru ağırlıklarını azaltıcı etki yapmıştır. Bakteri ve K uygulamaları bu engelleyici etkiyi özellikle 50 ve 100 mM NaCl uygulamalarında azaltmıştır. Tuz stresi Sıla F1 biber çeşidinde yaprak oransal su kapsamı ve membran stabilite indeksini konsantrasyonlara bağlı olarak azaltmıştır. SPAD değerleri ise tuz uygulamalarından etkilenmemiştir. Özellikle 50 ve 100 mM NaCl uygulamalarında SPAD değerlerinde bakteri ve K uygulamaları ile iyileşme görülmüştür. Na iyonu, tuz uygulamaları ile artmış en fazla artış bitkilerin gövde kısmında olmuştur. Yaprak ve kök Na miktarı bakteri ve K uygulamaları ile azalmıştır. K ve Mg iyonları, tuz uygulamaları ile azalmış, Ca iyonları ise artmıştır (gövde dışında). En düşük düzeyde K ve Ca birikimi köklerde olmuş bunu gövde kısmı takip etmiş ve yapraktaki miktarların, diğer iki bitki kısmından daha fazla olduğu belirlenmiştir. Yaprak ve kök K ve Mg miktarlarında bakteri ve K uygulamaları ile birlikte artış gözlenmiştir. Mg miktarı özellikle 50 mM NaCl uygulamasında bakteri uygulamaları ile artmıştır. Klor iyonu miktarının genel olarak en fazla biriktirildiği kısım yaprak ve gövde kısmı olmuştur. Bakteriler Cl miktarı üzerine etkili olmazken, K uygulamasının kısmen Cl oranını azalttığı belirlenmiştir. The effects of bacteria and potassium applications on pepper plants cv. Sıla F1 during seedling stage under salt stress conditions were investgated. In the experiment the salt was given in the form of sodium chloride (NaCl) and Potassium nitrate (KNO3) as a potassium fertilizer and Serratia marcescens and Stenotrophomonas maltophilia as bacteria were used. Plants were grown under controlled greenhouse conditions at 30/17 ºC (day/night) temperature with relative humidity ~ 50 %. After 5 days from planting when the plants had developed 4-5 true leaves, 10 mL bacteria sollution was injected to root region of the seedlings and was started to NaCl and potassium (K) applications. 0 mM (Control), 50 mM, 100 mM and 150 mM NaCl were used as the main application matter and Control, Stenotrophomonas maltophilia, Serratia marcescens, Stenotrophomonas maltophilia+50 mM Potassium, Serratia marcescens+50 mM Potassium and 50 mM Potassium were used as the sub application matter. Salt stress affects the plant growth negatively and reduced the dry weight. The bacteria and K applications decreased this inhibitory effect especially at 50 and 100 mM NaCl concentrations. Leaf relative water content and memrane stability index values were reduced depending on the increase in salt concentration in pepper plants cv. Sıla. The SPAD values were not affected from the salt application. The SPAD values have improved with bacteria and K applications especially at 50 and 100 mM NaCl concentrations. The amount of Na ion increased with salt applications and it was observed that Na ion accumulated utmost in the stems. The Na amount in leaf and root parts of the seedlings decreased with bacteria and K applications. With the effect of salt applications, the amount of K and Mg decreased; while the amount of Ca increased. K and Ca ions were at least in the roots, secondly in the stems, utmost in the leaves. The amount of K and Mg in leaf and root parts of the seedlings increased with bacteria and K applications. Mg content increased with bacteria applications especially at 50 mM NaCl application. Cl ion was utmost in the leaves and in the stems. It was determined that, bacteria application did not effect the amount of Cl, while K application partly to reduce the rate of Cl content.
- Published
- 2014
8. Growth and stomatal behaviour of two strawberry cultivars under long-term salinity stress
- Author
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Uludağ Üniversitesi/Ziraat Fakültesi/Bitki Koruma Bölümü., Turhan, Ece, Eriş, Atilla, and AAH-3180-2020
- Subjects
Osmotic adjustment ,Salt stress ,Varieties ,Forestry ,Plants ,Agriculture, multidisciplinary ,Strawberry ,Agronomy ,Water relations ,Gas exchange ,Mechanisms ,Photosynthesis ,Stomata ,Plant growth ,Peroxidase - Abstract
Sodium chloride (NaCl) treatments were conducted on strawberry plants (Fragaria x ananassa cvs. Camarosa and Chandler) grown under greenhouse conditions. Modified Hoagland solution (one-third strength) containing 0 (control), 8.5, 17.0 and 34.0 mM NaCl was applied to the plants for 6 months. High NaCI concentrations caused serious reductions in growth parameters such as fresh weight (FW) of leaves, stems and roots, leaf area and the number of leaves. Addition of salt to the growth medium caused a reduction in stomatal conductance (Gs) and transpiration rate (E) of Camarosa. Saline water up to 34 mM NaCI did not have any influence on Gs of Chandler. In addition, 34 mM NaCl treatment caused a marked increase in Gs and E of Chandler. On the other hand, leaf temperature (Ti) increased with salt treatments in both cultivars. We suggest that the reductions in stomatal conductance and transpiration rate represent adaptive mechanisms to cope with excessive salt in Camarosa. As it can relatively maintain its stomatal conductance and transpiration rate, Chandler also tolerates the salt injury at low salt concentrations. Considering the cultivars. Camarosa was characterised as more salt tolerant than Chandler under saline conditions.
- Published
- 2007
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