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The current study was carried out on the basis of the Institute of Seed Production and Agrotechnologies, located in the Ryazan Region in 2010–2019, in order to determine the participation share of tillering shoots in the formation of spring wheat productivity in various agro-weather conditions. The objects of the study were the varieties ‘Lada’, ‘Agata’, ‘RIMA’, ‘Maestro’ developed by the Federal Research Agro-Engineering Center VIM. The mean productivity of the studied spring wheat varieties, depending on the level of moisture supply of the growing seasons, had a significant range of 2.20–5.29 t/ha. The mean density of the stems varied from 216 to 620 pcs/m2 among the varieties. The minimum value of 153–253 pcs/m2 was formed under severe drought conditions. When moisture supply improved, the indicator sharply increased in 2.6 times. There has been established that in more humid conditions (HThC 0.98–1.55) the plants were able to realize their potential tillering to a greater extent, the general indicators of tillering among the varieties ranged from 1.06 to 1.23 and 1.63 to 2.11. There was estimated an effect of secondary shoots on productivity, which was 35.2% on average in the trial, and from 10.6% to 48.3% depending on the genotype and environmental conditions. There has been found a shoot formation decrease in 2.4 times of the variety ‘Lada’ under a moisture deficit. There has been determined that the variety ‘RIMA’ had the lowest tillering coefficient for all vegetation periods, and grain weight per a main spike mainly contributed to its productivity. During the moisture deficit periods, the share of the effect of lateral shoots in the variety ‘Agata’ was at the level of mean values, and on 9.9% and 13.1% more than in the varieties ‘Lada’ and ‘RIMA’, respectively. The maximum value of the productivity on the lateral shoots was formed by the variety ‘Maestro’, the productivity share of the secondary shoots during all periods was higher than that of all varieties and amounted to 39.1–48.3%.

Fusarium graminearum and Zymoseptoria tritici cause economically important diseases of wheat. F. graminearum is one of the primary causal agents of Fusarium head blight (FHB) and Z. tritici is the causal agent of Septoria tritici blotch (STB). Alternative control methods are required in the face of fungicide resistance and EU legislation which seek to cut pesticide use by 2030. Both fungal pathogens have been described as either hemibiotrophs or necrotrophs. A microbial fermentation-based product (MFP) was previously demonstrated to control the biotrophic pathogen powdery mildew, on wheat. Here we investigated if MFP would be effective against the non-biotrophic fungal pathogens of wheat, F. graminearum and Z. tritici. We assessed the impact of MFP on fungal growth, disease control and also evaluated the individual constituent parts of MFP. Antifungal activity towards both pathogens was found in vitro but MFP only significantly decreased disease symptoms of FHB in planta. In addition, MFP was found to improve the grain number and weight, of uninfected and F. graminearum infected wheat heads.

Background.Crop yield is a compound and complex character in breeding programs. A stable high yield is determined by the genotype, environmental impacts, and their interaction. A comprehensive assessment of cultivars based on their adaptability, plasticity and stability makes it possible to select among the studied assortment the most promising, potentially high-yielding and environmentally flexible plant forms adaptable to a wide range of environmental conditions.Materials and methods. Evaluation of 146 accessions representing two-row (subsp.distichonL.) and six-row (subsp.vulgare) barleys (Hordeum vulgareL.) was performed in 2015–2017 to measure the adaptability, stability, plasticity and homeostasis of barley yield. Experimental data were statistically processed using the methods of the two-way ANOVA and correlation analysis.Results and conclusion. It was established that barley yield formation was almost equally determined by the genotype (34.3%), environmental conditions (31.9%), and genotype × environment interactions (33,7%), showing that the tested barleys were relatively well adaptable to climate changes in the Northern Trans-Urals. Barley yield was more closely associated with grain weight per plant (r = 0.72) and the number of productive stems per area unit (r = 0.63), and to a lesser extent with seed germination rate in the field (r = 0.39) and 1000 grain weight (r = 0.37). Strong correlations were observed for the yield with the adaptability coefficient (r = 0.94), environmental plasticity index (r = 1.00), and compensatory capacity (r = 0.96). Cvs. ‘Abyssinian 14’ (k-23504, var.pallidum) and ‘Kharkovsky 70’ (k-23683, var.nutans) exhibited a set of adaptive and productive properties.

There have been presented the study results of 11 collection hulled oats samples in comparison with the standard variety ‘Krechet’ conducted at the Falenskaya selection station of the FARC the North-East (the Kirov region) in 2018–2020. The purpose of the current study was to identify sources stable on the trait ‘1000-grain weight’ for the breeding of hulled oats by estimating the adaptability parameters. The soil of the experimental plot was sod-podzolic, medium loamy, the meteorological conditions were contrasting in temperature and precipitation. In the favorable year of 2019, the 1000-grain weight was the highest (34.6–45.9 g), the index of environmental conditions was positive (Ij = 1.6). In the unfavorable year of 2020, the 1000-grain weight was 31.3–41.8 g and the index of environmental conditions was negative (Ij = -1.5). There have been identified the adaptable sources (IEP = 1.08–1.00) ‘15330 KSI 590/05’ (Russia), ‘15388 Saltaret’ (Moldova), ‘15423 Prelekst’, ‘15426 Werva’ (Germany); the stable sources according to the relative stability of the trait (St2 = 0.99–0.91) ‘15280 55 h 2106’, ‘15331 CSI 2167/03’ (Russia), ‘15297 Geszti’ (Hungary), ‘15388 Saltaret’ (Moldova), ‘15428 Bohum’ (Poland), ‘15420 Leniak’ (Germany); the sources with a high level of intensity (I = 24.5 and 19.30%) – ‘15329 CSI 639/05’, ‘15330 CSI 590/05’ and homeostaticity (Hom = 25.28–11.96) ‘15280 55 h 2106’ (Russia), ‘15297 Geszti’ (Hungary), ‘15388 Saltaret’ (Moldova); the sources responsive to favorable growing conditions (Kp = 1.11–1.28) ‘15329 KSI 639/05’, ‘15330 KSI 590/05’, ‘15331 KSI 2167/03’ (Russia), ‘15414 Enostar’ (Germany); the most adaptive sources in terms of the sum of ranks ‘15330 CSI 590/05’ and ‘15329 CSI 639/05’ (Russia), ‘15388 Saltaret’ (Moldova), ‘15426 Werva, ‘15414 Enostar’ (Germany). There have been identified significant direct correlations between indicators of stability and homeostaticity (r = 0.96), intensity and coefficient of responsiveness (r = 0.73).

The current study was carried out in the southern part of the Rostov region at the FSBSI “Agricultural Research Center “Donskoy” in 2018–2020. The purpose of the study was to investigate the combined effect of mineral fertilizers and treatments with the growth retardant ‘Moddus’ on productivity of the barley variety ‘Marusya’. In the course of the study, there was identified high responsiveness of the facultative barley variety ‘Marusya’ to the use of mineral fertilizers. Without fertilization, the productivity was 3.46–3.59 t/ha, and 0.87–1.57 t/ha when using the fertilizers. The maximum productivity and protein percentage were established in the variants with the introduction of N79P82K57 according to the active ingredient, with 5.81 t/ha and 0.55 t/ha, respectively. The treatment of plants with the growth retardant ‘Moddus’ contributed to productivity increase on 0.13–0.22 t/ha on average over the years of study. Under the effect of the growth retardant ‘Moddus’, the number of productive heads increased on 5–19 pieces/m2 , there was also a tendency to an increase in the number of grains per head and grain weight per head. The growth retardant ‘Moddus’ contributed to a decrease in plant height on 3.6–5.6 cm, at the same time there was a tendency to increase length of head on 0.2–0.5 cm in comparison with the control variant. Mineral fertilizers effectively increased nature weight of the facultative barley variety ‘Marusya’. Without fertilization, nature weight of grain was 579 g/l and 584 g/l, and when using fertilizers, it increased on 16–27 g/l or 2.7–4.6%. Productivity increase in the variant when treating with the growth retardant ‘Moddus’ resulted in an increase of the indicator of conditional net income over the control variant on 745–1884 rubles/ha.

Echinochloa crus-galli (L.) Beauv. is a stronger competitor of rice for resources than other weeds. An adequate knowledge of the biology, ecology and critical period of competition of E. crus-galli...

The aim of the study was to investigate the systems of genetic control of the trait “grain weight per main spike” in spring barley in the system of diallel crosses to optimize the breeding process for yield. Six varieties of barley were used as parental forms: Condor and Omskiy naked 1 (hulless), Margret, Lun, Nutans 553, and Anna (hulled). Crosses according to the full diallelic scheme were performed in 2008 and 2009. Field experiments were carried out in the forest-steppe of Penza region in 2009 and 2010 with contrasting hydrothermal regimes. In most hybrid populations, the grain weight per spike was inherited according to the type of overdominance and complete dominance of the parent with a high value of the trait. The analysis of the combining ability by B.Griffing showed that both additive and non-additive effects were present in the control of the trait; their balance varied by years and genotypes. The correlation coefficients between the general combining ability (GCA) and the degree of the trait in parental varieties (r=0.76...0.96) indicate that the selection of pairs for crosses can be carried out on the basis of high values of grain weight per spike, especially in a dry year. Genetic analysis by B.Hayman showed the prevalence of the effects of overdominance in the control of the trait; in 2009, complementary epistasis was also registered. Overdominance and non-additive effects in the control of a trait complicates selection in early generations, which is confirmed by the differences between the values of heritability coefficients in the broad sense (H2=0.79...0.94) and in the narrow sense (h2=0.24...0.59). The largest number of dominant genes controlling the grain weight per spike was found in Margret in both years of research and Anna in the dry year. These varieties are also distinguished for the consistently positive effects of GCA and are recommended as donors of the trait for breeding

The present study aimed to estimate genetic parameters of 20 common bean genotypes, commercial and regional bean on weed interference. The agronomic characters analyzed were: average stem diameter (ASD); average plant length (APL); number of pods per pot (NPP); number of locules per pod (NLP); number of grains per pod (NGP); percentage of empty locules (% EL); total grains per pot (TGP); total grain weight per pot (TGW) and average grain weight (AGW). High heritability values were found for most of the characters studied, except for NGP and EL; in addition to great genetic variability among genotypes. Therefore, for most of the characteristics of agronomic interest studied, simple selection methods can be applied with great potential to identify superior genotypes and consequent genetic progress in common bean breeding.

Emmer wheat (Triticum turgidum ssp. dicoccum) is one of the most promising gene sources for drought tolerance improvement of durum wheat (Triticum turgidum ssp. durum). Achieving desired results requires a conscious choice of crossing parents based on general and specific combining ability (GCA and SCA) and also understanding the genes action involved in controlling the desired traits. In this study a 12 × 12 full diallel cross was performed using four emmer and eight durum wheats. The 132 hybrid progenies along with their parental lines were field evaluated under water-stressed and non-stressed conditions. Based on the Griffing diallel analysis both GCA and SCA effects were highly significant for all measured traits under both water treatments indicating possibility of improvement for drought tolerance. In this respect, the amount of additive effect was higher than the non-additive suggesting the chance for genetic advancement through selection. Based on Hayman's graphical analyses under the two water conditions it was revealed that several grain yield component traits were under the control of partial dominance. In contrary, grain yield and most morphological traits showed either dominance or over-dominance gene action. Grain yield had a significant positive correlation with the number of kernels per spike, kernel diameter, grain weight per spike and harvest index. These traits also had greater share of additive effects, relatively high narrow-sense heritability and high Baker ratio suggesting effective indirect selection for grain yield. Most durum × emmer hybrids had grain yield and drought tolerance indices better than the parents indicating that Iranian emmer wheats have a great genetic potential for drought tolerance improvement of durum wheat.

Two major and stable QTLs for spike compactness and length were detected and validated in multiple genetic backgrounds and environments, and their pleiotropic effects on yield-related traits were analyzed. Spike compactness (SC) and length (SL) are greatly associated with wheat (Triticum aestivum L.) grain yield. To detect quantitative trait loci (QTL) associated with SC and SL, two biparental populations derived from crosses of Chuanmai42/Kechengmai1 and Chuanmai42/Chuannong16 were employed to perform QTL mapping in five environments. A total of 34 QTLs were identified, in which six major QTLs were repeatedly detected in more than four environments and the best linear unbiased prediction datasets, explaining 7.13–33.6% of phenotypic variation. These major QTLs were co-located in two genomic regions on chromosome 5A and 6A, namely QSc/Sl.cib-5A and QSc/Sl.cib-6A, respectively. By developing kompetitive allele-specific PCR (KASP) markers that linked to them, the two loci were validated in different genetic backgrounds, and their interactions were also analyzed. Comparison analysis showed that QSc/Sl.cib-5A was not Vrn-A1 and Q, and QSc/Sl.cib-6A was likely a new locus for SC and SL. Both QSc/Sl.cib-5A and QSc/Sl.cib-6A had pleiotropic effects on other yield-related traits including plant height, thousand grain weight and grain length. Therefore, the two loci combined with the developed KASP markers might be potentially applicable in wheat breeding. Furthermore, based on the spatiotemporal expression patterns, gene annotation, orthologous search and sequence differences, TraesCS5A01G301400 and TraesCS6A01G090300 were considered as potential candidates for QSc/Sl.cib-5A and QSc/Sl.cib-6A, respectively. These results provided valuable information for fine mapping and cloning of the two loci in the future.

A study was conducted during the period of three concessive years from 2016/2017 to 2018/2019 in the experimental field of the Institute of Agriculture - Karnobat, Southeastern Bulgaria with the aim to investigate the variability, heritability, and correlation between grain yield and yield-related traits of breeding lines of facultative barley under rainfed conditions and to select lines with desirable agronomic traits for including in further breeding work for the development of facultative barley varieties for Bulgarian environments. The traits: number of days to heading, plant height, spike length, spikelet number per spike, grain number per spike, grain weight per spike, and grain yield were recorded. The analysis of variance indicated significant differences between 6-rowed facultative barley genotypes in the studied traits. Most of the traits under the study showed the relatively low phenotypic and genotypic coefficient of variation. The estimates for heritability in broad-sense were high for the number of days to heading, grain weight per spike, and 1000-grain weight and very high for plant height and spike length suggesting a possibility for improvement of those traits through selection based on phenotype. Whereas low heritability of grain yield was found indicating that the phenotypic selection could be ineffective under these specific conditions. Grain yield of facultative barley accessions showed a significant positive correlation with spike length, spikelet number per spike, grain number per spike and grain weight per spike. The traits with the highest positive direct effect on grain yield were grain number per spike and 1000-grain weight while days to heading had a highly negative direct effect on grain yield. A combination of high heritability and high direct on grain yield in 1000-grain weight and days to heading shows that those traits may be used in early-generation selection in breeding of high-yielding facultative lines. The accession TX01D236 had a significantly higher grain yield compared to check varieties and could be included in future breeding work.

An experiment was carried out at Agricultural Research Station, Vaigaidam, Theni district of Tamil Nadu from 2007 to 2019 with an objective of developing a variety by deriving the grain quality characters from the traditional rice variety Seeragasamba and yield and yield attributing characters from ADT 43. The promising culture VG 09006, a cross derivative of ADT43/Seeragasamba was released as VGD 1 during 2019 by the State Variety Release Committee, Tamil Nadu. It is a medium duration variety (129 days) with erect, high tillering and non lodging plant habit. This variety is recommended for samba/late samba seasons of Dindigul, Theni, Trichy, Perambalur, Karur, Coimbatore, Erode, Dharmapuri, Vellore and Virudhunagar districts of Tamil Nadu. It recorded an overall mean grain yield of 5859 kg/ha at 101 locations, which was 32.56 and 13.80 per cent increased grain yield over Seeragasamba (4420 kg/ha) and TKM 13 (5149 kg/ha), respectively. It is moderately resistant to leaf folder, blast and brown spot under field conditions. The rice is white, fine (short slender) with a 1000 grain weight of 8.9 g which is less than Seeragasamba (11.6 g) and all other popularly grown rice varieties viz., TKM13 (13.8 g, CO 51 (16.0 g) and ADT 43 (15.5 g). Key wordsBriyani rice, Quality rice, Seeragasamba, aromatic rice, VGD 1

In recent years, the production of natural and recyclable, environmentally friendly products has come to the fore rather than textile and textile products produced from petroleum resources. One of the materials used in the production of these products is the Jute plant. This study was carried out in a laboratory environment under controlled conditions between 2019 and 2020. In the study, some physical (shape-size, surface area, average arithmetic-geometric diameter, sphericity, thousand grain weight) and physiological properties (germination percentage and time, average shoot-root lengths) of seeds belonging to two different varieties of Jute plant (Corchorus capsularis L. and Corchorus olitorius L.) were determined. According to the data obtained; It has been determined that C. capsularis variety has a short and oval structure, while C. olitorius variety has a medium and oval structure. Furthermore, the germination rate was determined as 74.5% in C. capsularis seeds and 63.5% in C. olitorius seeds.

Rice grain yield is determined by three major “visible” morphological traits: grain weight, grain number per panicle, and effective tiller number, which are affected by a series of “invisible” physiological factors including nutrient use efficiency and photosynthetic efficiency. In the past few decades, substantial progress has been made on elucidating the molecular mechanisms underlying grain yield formation, laying a solid foundation for improving rice yield by molecular breeding. This review outlines our current understanding of the three morphological yield-determining components and summarizes major progress in decoding physiological traits such as nutrient use efficiency and photosynthetic efficiency. It also discusses the integration of current knowledge about yield formation and crop improvement strategies including genome editing with conventional and molecular breeding.

Padi merupakan salah satu sumber karbohidrat utama bagi masyarakat Indonesia. Upaya pengembangan varietas baru sangat bergantung pada ketersediaan plasma nutfah sebagai sumber material genetik. Salah satu cara dalam pengembangan varietas baru melalui persilangan buatan untuk menciptakan keragaman dengan menggunakan kultivar lokal dan varietas/galur unggul. Tujuan penelitian ialah untuk mengeksplorasi korelasi, heterosis, aksi gen, dan heritabilitas arti luas pada delapan karakter padi, yang dapat digunakan dalam melakukan seleksi. Kegiatan persilangan buatan telah dilakukan dengan menggunakan satu galur unggul dan empat kultivar padi lokal yang memiliki karakter beragam. Empat populasi hasil persilangan (F1) ditanam menggunakan rancangan acak lengkap dengan empat ulangan, serta lima tetua (galur unggul dan padi lokal) sebagai pembanding. Hasil perhitungan korelasi menemukan bahwa terdapat satu variabel yang menunjukan korelasi pada hampir semua karakter yaitu bobot malai. Heritabilitas tinggi terdapat pada karakter umur panen, panjang malai, jumlah gabah permalai, bobot 1000 biji dan tinggi tanaman. Persilangan yang menunjukan fenomena heterosis negatif ialah pada B14081H-296 x Salak dan Dampak x Carogol sehingga memiliki umur panen yang lebih pendek dari rata-rata kedua tetua dengan aksi gen dominan sebagian dan aditif.

O arroz está entre os grãos mais consumidos e produzidos no mundo, sendo responsável por alimentar em torno de 2,5 bilhões de pessoas, porém muito se perde devido ao ataque de insetos no armazenamento. Baseado nisso, se objetivou avaliar o uso da terra de diatomácea em grãos de arroz com casca quando infestados por adultos de Sitophilus zeamais. Foram utilizados grãos com teor de umidade inicial de 12 e 14%, sendo cada umidade tratada com doses de 0, 500, 1500 e 2500 g t-1 em dois períodos de infestação: 1 hora e 15 dias após a aplicação. Cada dose foi composta de cinco repetições contendo 100 g de grãos e 20 insetos adultos, para cada teor de umidade e período de infestação. Aos 30 e 60 dias após cada infestação, a mortalidade e emergência de Sitophilus zeamais foram analisadas. Perda de peso dos grãos e teor de umidade foram verificados somente aos 60 dias. Grãos livres de tratamento apresentaram menores valores de mortalidade de Sitophilus zeamais, diferindo estatisticamente dos demais, independente dos períodos de infestação. Independente do teor de umidade inicial e período de infestação, doses de terra de diatomácea de 1500 e 2500 g t-1 apresentaram mortalidade de Sitophilus zeamais entre 98 e 100%. Todos os tratamentos apresentaram teor de umidade final abaixo de 12%. Maiores perdas de peso foram verificadas em grãos com maior teor de umidade inicial. Desta forma, pode-se concluir que a terra de diatomácea apresenta ação satisfatória no controle de S. zeamais em grãos de arroz com casca quando estes entram em equilíbrio higroscópico abaixo de 12%.

The article presents a new variety of soft winter wheat Verochka, created in the North Caucasian Federal Research Center. On average, over the years of study (2018-2020), the excess in grain yield over the standard was high and reliable and amounted to 1.21 t / ha. The new genotype is distinguished by an increased formation of productive stems per 1 m2, a high grain weight of an ear and a weight of 1000 grains. Reliably and significantly exceeds the standard variety Thunder in frost resistance and disease resistance. Verochka is characterized by high quality grain and bread, high drought resistance and lodging resistance. The new variety is well recommended for growing on all fertilized predecessors using intensive and medium-intensity technologies on farms of all forms of ownership.

Foxtail millet has the potential to be developed as a healthier food alternative because of its high nutritional value. Disease such as leaf blight caused by Bipolaris setariae is one of the limiting factors in Foxtail millet productivity. One of the efforts to control the pathogen is by utilizing resistant varieties. In this study, two candidate varieties and two germplasm accessions were tested to determine the level of resistance to Bipolaris setariae leaf blight. The study was arranged based on a complete randomized design with six replications. Each test material was inoculated with the spore suspension at 4 WAP. Disease intensity was observed based on the disease scoring at 7, 9, and 11 WAP. AUDPC value is calculated based on the intensity of the attack at a particular observation time. Grain weight was recorded and statistically analyzed. The two candidate varieties of foxtail millet Pagamogo and Tedamude from Nagekeo Regency showed a moderately resistant response to leaf blight and had the lowest AUDPC values of 907.69 and 912.31. The highest increase in AUDPC values was observed in the initial observation period at 0-49 DAP.

Bu çalışma yağışa dayalı koşullarda farklı durum buğday çeşitlerinin adaptasyon kabiliyetini belirlemek amacıyla Mardin/Midyat ilçesi 2018-2019 kış yetiştirme sezonunda tesadüf blokları deneme desenine göre 4 tekrarlamalı olarak yürütülmüştür. Çalışmada, Güneydoğu Anadolu Bölgesine özgü 4 yerel (Bağacak, Sorgül, Menceki, Havrani) ve farklı şirketlerden temin edilen 4 ticari çeşit (Cesara, Svevo, Burgos ve Ovidio) durum buğdayı çeşidi kullanılmıştır. Araştırmada; başaklanma süresi (gün), bitki boyu (cm), başakta başakcık sayısı (adet), başakta tane ağırlığı (g), bin tane ağırlığı (g), tane verimi (kg/da), hektolitre ağırlığı (kg/hl), yaş gluten (%w/w), protein oranı (%) ve SDS Sedimantasyon (ml) özellikleri incelenmiştir. Araştırma sonuçlarına göre çeşitlerin ekolojik şartlardan önemli derecede etkilendikleri, başaklanma süresi 128.00-141.00 gün, bitki boyu 71.75-117.00 cm, başakta başakcık sayısı 18.15-22.13 adet, başakta tane ağırlığı 1.19-1.63 g, bin tane ağırlığı 26.52-37.96 g, tane verimi 133.50-198.75 kg/da, hektolitre ağırlığı 67.40-72.20 kg/hl, yaş gluten %16.20-34.35 ve protein oranı %15.85-19.40 ve sedimentasyon değeri 15.50-25.00 ml arasında değişmiştir. Yağışa dayalı şartlarda yerel ve ticari makarnalık (durum) buğday çeşitlerinin verim ve kalitesi üzerine önemli etkisinin olduğu görülmüştür.

Meta-QTL (MQTL) analysis is a robust approach for genetic dissection of complex quantitative traits. Rice varieties adapted to non-flooded cultivation are highly desirable in breeding programs due to the water deficit global problem. In order to identify stable QTLs for major agronomic traits under water deficit conditions, we performed a comprehensive MQTL analysis on 563 QTLs from 67 rice populations published from 2001 to 2019. Yield and yield-related traits including grain weight, heading date, plant height, tiller number as well as root architecture-related traits including root dry weight, root length, root number, root thickness, the ratio of deep rooting and plant water content under water deficit condition were investigated. A total of 61 stable MQTLs over different genetic backgrounds and environments were identified. The average confidence interval of MQTLs was considerably refined compared to the initial QTLs, resulted in the identification of some well-known functionally characterized genes and several putative novel CGs for investigated traits. Ortho-MQTL mining based on genomic collinearity between rice and maize allowed identification of five ortho-MQTLs between these two cereals. The results can help breeders to improve yield under water deficit conditions.

The aim of this study was to assess the variation in grain quality traits among mutant lines of winter feed barley. Nine mutant lines derived from the advanced breeding line Kt3029 and 10 mutant lines derived from variety GA-Luttrell along with their parent forms were evaluated. The study was conducted at the Institute of Agriculture – Karnobat during the period 2015-2017. Test weight, 1000-grain weight, the content of protein, starch, lysine, fat, ash, and fibre were determined. Significant differences between the mutant lines and the parent forms for the studied traits were observed. Significantly higher protein content compared to parent was found in the grain of mutant lines 22/1-5, 22/2-10 and 22/1-12 from line Kt3029 and 26/1-1, 26/1-3 and 26/2-11 from variety GA-Luttrell. The grain of mutant line 26/2-12 had the best combination of protein and starch. Mutant lines 22/1-11 and 22/1-12 from Kt3029 and 26/1-1, 26/2-1 and 26/2-12 from variety GA-Luttrell showed a good combination between protein content and 1000-grain weight. Those mutant lines can be included in the breeding program for the development of varieties with improved feed quality.

Bu araştırma yerel cin mısır popülasyonlarının Osmaniye ili Sumbas ilçesi koşullarında verim performanslarının araştırılarak bu ekolojiye uygun yüksek verimli ve kaliteli cin mısır çeşitlerini belirlemek amacıyla 2014 yılında yürütülmüştür. Tesadüf blokları deneme desenine göre dört tekerrürlü olarak kurulan bu araştırmada 2 adet yerel cin mısır çeşidi ve 15 adet yerel cin mısır popülasyonu kullanılmıştır. Araştırmada incelenen popcorn genotiplerinin kalite özelliklerinin en düşük ve en yüksek değerler sırasıyla bin tane ağırlığının 128.79 - 181.06 g, patlamayan tane oranının % 0.02 - 0.08, patlama oranının % 0.93 - 0.98, 50 g tanenin patlama hacminin 15.55 - 21.78 cm3 g-¹, protein oranının % 8.44 - 16.65, yağ oranının % 3.003 - 6.65), kuru madde oranının % 86.65 - 88.003, nişasta oranının % 76.76 - 80.17 arasında değiştiği tespit edilmiştir. Sonuç olarak en yüksek protein ve yağ değeri Sakarya Han köyünden toplanan popülasyondan elde edildiği ve patlama oranının da iyi olduğu kaydedilmiştir. Yerel cin mısırı popülasyonlarından Bafra Koşuköy, Çanakkale Patlak, Balıkesir Beyaz Cin ve Çanakkale Beyaz Cin mısır populasyonları 1000 tane ağırlığı; Samsun Beyaz Cin ve Kdirli Cin mısır populasyonları patlama oranları; Çanakkale Sarı Cin, Samsun Merkez ve Bafra Koşuköy mısır populasyonları patlama hacmi; Sakarya Hanköyü protein, yağ ve nişasta oranları bakımından ve Edirne Beyaz Cin, Kadirli Cin ve Çanakkale Patlak mısır populasyonları kuru madde oranı yönünden ticari çeşit olan Nermin Cin ve Ant Cin 98’den daha yüksek değerlere sahip olduğu belirlenmiştir., This research was conducted in 2014 in order to determine the high-yielding and quality popcorn varieties by investigating the yield performances of landraces popcorn populations in Sumbas district conditions of Osmaniye province. This study was designed as a randomized block with four replications. Plant materials used in the trials were 2 local popcorn varieties and 15 local popcorn populations. The lowest and highest values of the quality characteristics of popcorn genotypes examined in the study were 128.79-181.06 g, 0.02-0.08%, 0.93-0.98 %, 15.55-21.78 cm3 g-¹, 8.44-16.65%, 3.003-6.65%, 86.65-88.003%, and 76.76-80.17% for one thousand grain weight, unpopped kernel rate, popping rate, the popping volume of 50 g grains, protein ratio, oil ratio, dry matter ratio, and starch ratio, respectively. As a result, it was recorded that the highest protein and oil ratiowas obtained from the population collected from Sakarya Hankoyu. It was determined that landraces popcorn populations sustained higher values than the commercial variety Nermin pop and Ant pop 98, Bafra Koşuköy, Çanakkale Patlak, Balıkesir White Gin and Çanakkale White Cin maize populations in terms of 1000 grain weight; Samsun White Cin and Kadirli Cin corn populations in terms of popping rates; Çanakkale Sarı Cin, Samsun Merkez and Bafra Koşuköy corn populations in terms of popping volume; Sakarya Hanköyü in terms of protein, oil and starch ratios and Edirne White Cin, Kadirli Cin and Çanakkale Popcorn populations in terms of dry matter ratio.

The current paper has presented the analysis results of the value of heterosis and the degree of phenotypic dominance of hybrids F1 obtained by saturating crossings of two-row and multi-row spring barley forms. The purpose of the study was to determine the value of heterosis and the degree of phenotypic dominance of the main quantitative traits of the multi-row hybrids of spring barley. The study was carried out in the laboratory for grain crops and groats breeding of the FSBSI FRC of Agrobiotechnologies of the Far East named after A. K. Chayka. There were studied 68 varieties of multi-row spring barley forms selected from the world collection of IPI of various ecological and geographical origin. The two-row varieties ‘Primorsky 98’, ‘Primorsky 44’, ‘Primorsky 89’, ‘Tikhookeansky’ and ‘Vostochny’ developed by FSBSI FRC of Agrobiotechnologies of the Far East named after A. K. Chayka were taken as maternal forms. Four multi-row barley varieties ‘Kazminsky’ (Khabarovsk Territory), ‘Peguis’ (Canada), ‘Kolchan’ (Altai Territory), ‘07N1’ (China) with valuable economic traits were taken as a paternal form. There was conducted a five-fold backcrossing of hybrids with paternal forms and there were selected the populations of multi-row genotypes. The most of the hybrids F1 manifested their heterosis simultaneously according to four traits, productive tillering, number of grains per main head, grain weight per main head, and grain weight per a plant. Only two hybrids ‘Primorsky 98 x Kolchan’ and ‘Primorsky 89 x Peguis’ showed a depression. There was identified heterosis by the traits ‘number of grains per main head’, ‘grain weight per main head’ in all hybrids. When analyzing the inheritance of the trait ‘grain weight per a plant’, there was established overdominance of this trait at the highest values of the hybrids ‘Tikhookeansky x Peguis’ (9.7) and ‘Primorsky 44 x 07N1’ (5.2), the heterosis degree was 50.4% and 82.2%, respectively. There has been established that three hybrids ‘Primorsky 98 x 07N1’, ‘Primorsky 44 x 07N1’, ‘Tikhookeansky x Peguis’ can belong to the most promising ones.

The results of the study of the inheritance of productivity traits by hybrids of the first generation of winter rye in the fields of the Samara Research Institute of Agricultural Sciences for 2012-2013 are presented. Inheritance of traits and heterosis (hypothetical and somatic) depend not only on the parental forms, but also on climatic factors. Heterosis for grain weight spike is positively correlated with an increased number of spikelets of the spike, number and weight of grains, and plants, weight of ear, degree of dominance and decreases with an increase in internode length (r=-0,23... -0,30). Heterosis for plant height correlated with an increase in the mass of 1000 grains and the "degree of dominance (hp)" plant height, hypothetical increases with increasing productive tillering (r=0,30±0,18), true - decreases with increasing number of grains per spike (r=-0,33±0,18). Heterosis for number of grains per spike increases with increasing number and weight of grain per spike and plant, weight of spike, heterosis for grain weight spike, "the degree of dominance (hp)" weight of grain per spike and number of grains and decreases with increasing the length of the top internode (r=-0,48... -0,49). The heterosis for 1000-grain weight manifested by increasing productive tillering, ear length, the heterosis of grain weight from the ear of heterosis for number of grains, the "degree of dominance (hp)" on the weight of grains in spike, weight of 1000 grains and decreases with increasing number of grains (r=-0,22 -0,33...), true of heterosis for plant height (r=-0,21... -0,22), "degree of dominance (hp)" the number of grains (r=-0,34... -0,38).

The influence of previous crops (oat, maize, or rape) and six variety of hulled oats (Avena sativa L.) were assessed qualitatively and quantitatively as to yield, thousand grain weight, and grain size in observations from 2009 to 2012. Harvested grain samples were analysed for the presence of mycotoxins (T-2 and HT-2 toxins, deoxynivalenol, and nivalenol) using LC/MS–MS. Fusarium poae was the species most often found on oats. Flamingsprofi and Salo were the most sensitive varieties of oat. The sensitivity of the variety to lodging as well as the earliness of the variety was correlated with the occurrence of fusariosis on oats. The highest average occurrence of Fusaria on oat grains was after use of maize as the pre-crop. The oat samples were most often contaminated with nivalenol. Nivalenol positively correlated with the weight of a thousand grains of oat and negatively correlated with the oats grain falling through the sieve.

General combining ability (GCA) has been successfully used to evaluate the parental performance in hybrid breeding program, while the molecular basis of GCA still remains unknown. In this study, RNA-Seq was employed to compare the transcriptome profiles that determined the GCA for yield-related traits in two different barley genotypes. A total of 1051 differentially expressed unigenes (DEGs) including 599 up-regulated DEGs and 452 down-regulated DEGs were found between Baodamai 12 and Ximala 22. Gene ontology and Kyoto Encyclopedia of Genes and Genomes analysis revealed that many DEGs participated in metabolic process, stimulus response, catalytic activity and biosynthesis. Furthermore, 11 DEGs involved in the starch and sucrose metabolism pathway were discovered, among which eight up-regulated genes were related to beta-fructofuranosidase, pectinesterase, beta-glucosidase and hexokinase, while the other three down-regulated genes were related to sucrose-phosphate synthase, beta-glucosidase and hexokinase. These DEGs might contribute to the differences of GCA for grain weight between the two genotypes. The results may provide a new insight in the studying of the molecular basis of GCA and establish a foundation for further genomic research on the improvement of combining ability in barley breeding program.

Essential oil (EO) nanoemulsion is a new approach to formulate and convey insecticides and to minimize some of the common shortcomings associated with the conventional formulations of synthetic insecticides and also of essential oils. The aim of the present was to develop an oil-in-water (O/W) nanoemulsion of the essential oils of chamomile (Matricaria chamomilla L.) and cumin (Cuminum cyminum L.), and assess their lethal and sublethal toxicity to the red flour beetle Tribolium castaneum (Hersbt). The nanoemulsions of EO were characterized by droplet sizes of 341.4 and 387.1 nm for the chamomile and cumin, respectively. The polydispersivity (PDI), viscosity (cP), zeta potential (mV) and conductivity (mS/cm) of the nanoemulsions were also characterized. The cumin nanoemulsion exhibited higher lethal toxicity to the flour beetle, besides of compromising the insect weight gain while impairing their food consumption and conversion rate in sublethal exposure. Cumin EO nanoemulstion also sparked anti-feeding activity, reduced progeny production and prevented grain weight loss by the red flour beetle indicating its potential for stored product protection.

The F2 population was developed by crossing the adaptive yield variety of soybean with a variety without the Kunitz trypsin inhibitor in the mature grain. From the segregating F2 population 48 plants were taken. Their seeds were used to set up field experiment; part of the seed was saved for full-sib (FS) crosses. After yield testing, three lines marked as L6, L30 and L38 were chosen. Two FS cross combination, using saved seeds, were made (L30 x L38 and L6 x L30). Progenies of soybean full-sibs (FSF1:2) and each mother plant (F3:4) were grown, to make enough seed for testing in the field experiment. Data obtained in this experiment were processed to determine correlations of grain yield and other studied traits between mother's and proper full-sib progenies, using simple correlations and Spearman's rank correlations. A significant correlation into examinated traits between two types of progenies does not found, except for stem height and 1000 grain weight in the FS combination L30 x L38. The lack of correlation of plant characteristics between progenies of full-sibs and their mothers indicated the influence of lines used as fathers component. In both combinations of FS crosses, FSF1:2 progenies with better yield than the adapted parent (one without Kunitz trypsin inhibitor) were identified, which are considered promising for the further process of creating new varieties.

Grain-filling, as the final growth stage of rice, is sensitive to environmental temperature change. Previous studies mainly concerned about the effects of high temperature stress during grain-filling on rice growth, and most experiments were carried out with pot for cultivating rice and greenhouse for warming. This research investigated the response of rice grain-filling of superior spikelets (SS) and inferior spikelets (IS) of two japonica cultivars to elevated temperature during grain-filling stage under open-field warming conditions in lower reaches of Yangtze River Basin using free-air temperature enhancement facility. Results indicated that rice yield was not significantly changed by warming less than 4°C. SS and IS showed different responses to elevated temperature during the grain-filling stage, whereas there were similar trends between two cultivars and years. For SS, although elevated temperature enhanced its filling rate during the early grain-filling period, and caused a shorter grain-filling period and a lighter grain weight; for IS, elevated temperature improved its grain weight by enhancing its filling rate during middle and late grain-filling period due to the increased number of days with suitable temperature. For both SS and IS, key starch biosynthesis enzymes and indole-3-acetic acid content exhibited generally a similar dynamics trend with grain-filling rates, and these sink strength parameters presented higher levels under elevated temperature relative to natural temperature for IS during middle and late grain-filling period. Consequently, warming less than 4°C presented different influences on SS and IS; the improvement of IS filling under warming regime was associated with the intensification of grain sink strength.

An experiment was conducted to determine variability, correlation, path coefficient and principal component analysis for seed vigour parameters viz. standard germination, seedling density, seedling length, seedling dry weight, seedling vigour index I and II, 1000 grain weight and grain yield plot-1. The analysis of variance (ANOVA) revealed a wide range of variation existing in the material studied. The highest phenotypic and genotypic coefficient of variance recorded for seedling vigour index II (21.16 and 20.95, respectively) and, moderate values for seed density, seedling length, seedling dry weight and seedling vigour index I. The maximum value for heritability (broad sense) was found for seedling vigour index II (98.77%) whereas grain yield plot-1 had moderately high heritability (62.09%). Significant positive correlation were reported between standard germination and seedling density, seedling length, seedling dry weight, seedling vigour index I, seedling vigour index II and 1000 grain weight and seedling vigour index I estimated highest direct positive effect on grain yield plot-1, followed by seedling vigour index II, 1000 grain weight and seedling density. The principal component (PC1 and PC2) having Eigen value >1 (significant), accounted 64.70% of total variation. Maximum value was explained by component 1 with 50.5% of total variation.

The research was carried out with the aim to investigation the effects on grain yield and some seed characteristics of leaf, tassel removal and together treatments in maize during 2018 and 2019 years. The experiments were set up according to a Randomized Complete Block Design in a split-plot arrangement with three replicates, where cultivars were in the main plots while the practices were in subplots within the main plots using Bora (dent corn) and Karadeniz Yildizi (flint corn) maize cultivars. Effect on yield and seed characteristics of leaf (LR) and tassel removal (TR) and leaf x tassel removal interaction (LRxTR) were positive in both cultivars. The highest seed width (5.25 and 5.58 mm, respectively), seed length (9.89 and 10.21 mm, respectively), seed number per ear (642.2 and 669.6 number, respectively), 1000 grain weight (412.9 and 416.6 g, respectively), hectoliter weight (74.9 and 75.2 kg, respectively) and grain yield (1268.3 and 1334.8 kg da-1, respectively) were determined from the LRxTR interaction on dent corn in both years. However, YS+UA and UA treatments were included in the same statistical group. Generally, the lowest yield and seed characteristics were recorded in control treatment. The tassel removal treatment could be recommended due to its positive effects on yield and seed characteristics.

This research was carried out to determine the grain yield, yield components and some quality characteristics of 12 local bean genotypes collected from the Central and Eastern Black Sea Region in the Siran ecological conditions of Gumushane province, which is characteristic of the continental climates. Trial was established in 2017 and 2018 in three repetitions according to the Trial Blocks Coincidence Pattern. According to the averages of two years, it was determined that means were ranged between 39.30-45.40 days from sowing to first flowering, 113.33-120.17 days for seed harvest maturity, 56.32-60.67 cm for plant height, 10.54-11.50 cm for the first pod height, 9.47-10.45 pods/plant for pods number per plant, 7.35-10.29 cm for pod length, 2.95-5.77 seeds/pod for seeds number per pod, grain yield 185.07-277.68 kg da-1 , 32.27-43.00 g for one hundred seeds weight and 18.97-24.32% for crude protein content. The highest yield per decare was obtained from the genotypes GF1 (277.68 kg da-1) and GF2 (273.74 kg da-1). These genotypes were found to be earlier in terms of flowering onset and harvest maturity time. In addition, these genotypes had the highest values in terms of pod number, pod length, pod number in pod, 100 grain weight and protein ratio. For this reason, it is recommended to cultivate genotypes GF1 and GF2 under conditions similar to the Gumuşhane-Siran ecology., Bu araştırma, karasal iklimlerin karakteristik özelliğini taşıyan Gümüşhane ili Şiran ekolojik koşullarında Orta ve Doğu Karadeniz Bölgesinden toplanan 12 yerel fasulye genotipinin tane verimi, verim unsurları ve bazı kalite özelliklerini belirlemek için yürütülmüştür. Deneme 2017 ve 2018 yıllarında Tesadüf Blokları Deneme Desenine göre üç tekrarlamalı olarak kurulmuştur. İki yıl ortalamalarına göre, ekimden çiçeklenme başlangıcına kadar geçen sürenin 39.30-45.40 gün, hasat olgunluk süresinin 113.33-120.17 gün, bitki boyunun 56.32-60.67 cm, ilk bakla yüksekliğinin 10.54-11.50 cm, bitkide bakla sayısının 9.47-10.45 adet, bakla uzunluğunun 7.35-10.29 cm, baklada tane sayısının 2.95-5.77 adet, tane verimi 185.07-277.68 kg da-1, 100 tane ağırlığının 32.27-43.00 g ve protein oranının %18.97-24.32 arasında değiştiği tespit edilmiştir. En yüksek dekara tane verimleri GF1 (277.68 kg da-1) ve GF2 (273.74 kg da-1) genotiplerinden elde edilmiştir. Bu genotipler çiçeklenme başlangıcı ve hasat olgunluk süresi bakımından daha erkenci oldukları tespit edilmiştir. Ayrıca bu genotipler bitkide bakla sayısı, bakla uzunluğu, baklada tane sayısı, 100 tane ağırlığı ve protein oranı açısından da en yüksek değere sahip olmuşlardır. Bu nedenle Gümüşhane-Şiran ekolojisine benzer şartlarda GF1 ve GF2 genotiplerin yetiştirilmesi önerilmektedir.

It is of great importance to determine the correct sowing dates to ensure technical and physiological maturity that affects high grain yield and quality. With present study, it was aimed to determine the suitable sowing date and varieties in quinoa grown under Igdir irrigated conditions for high seed production. For this purpose, in the adaptation study carried out with 15 quinoa genotypes, Mint Vanilla and Titicaca varieties with the highest seed yield were tested by sowing at 10-day intervals (mid-March, last week of March, early April and mid-April). The study was established according to split plot experimental design on completely randomized blocks with 3 replications in 2017 and 2018. As a result of analysis; the effects of years, sowing dates and varieties on some parameters examined were found to be significant. Accordingly, it was observed that the other parameters except for thousand grain weight (TGW) and crude protein (CP) ratio in stem were higher in 2018. While the highest panicle ratio, TGW, seed yield, harvest index, CP ratio in grain and stem were determined in Titicaca, ripening time, stem thickness, plant height, number of branches, straw and biological yield were determined in Mint Vanilla. Compared to other sowing dates, ripening period, TGW and harvest index were found to be higher in the first sowing period, but stem thickness, plant height, branch number, straw and biological yield in the second sowing date. Consequently, it was concluded that sowings should be done without delay (in the third week of March) to avoid significant decreases in seed yield and quality characteristics and that Titicaca for seed production was the suitable variety for this region.

Relevance. The yield level significantly depends on the cultivation technique and landscape conditions. Therefore, knowledge of the mechanism of the relationship between these factors and the plant is relevant. Methods . The experiment was carried out in 2015–2019 at the “Agro landscape” training ground. The aim of the research was to study the influence of predecessors, the level of mineral nutrition and location in the relief on the formation of elements of the structure of the yield of winter wheat in the zone of unstable moisture in the Stavropol Territory. Results . The pea yield was formed in 2015 by the type of tall stalks, in 2017 by the mixed type, in other years by the spike type. On taxon A 1 , the yield depended on the grain weight per year in a strong ( r = 0.85), and on A 3 , in an average ( r = 0.60). For the halffallow, the formation proceeded in 2015 due to the productive stalk ( r = 0.78) and grain weight per ear ( r = 0.71), in 2016–2019. according to the spike type ( r = 0.76–0.96). In taxon A 1 , the yield was formed due to the weight of grain per ear ( r = 0.83), and in taxon A 2 and A 3 , due to the stem ( r = 0.84–0.85). For peas, a significant difference between the nutritional backgrounds was for all elements of the crop structure, except for the weight of grain per ear, and for half-fallow only in the number of productive stems. On average for predecessors, a significant difference in taxa was noted between A1 and A 2 in the number of grains and grain weight per ear, between A 2 and A 3 in the stem, between A 1 and A 3 in all elements of the crop structure. The strongest relationship between yield was noted with the weight of grain per ear ( r = 0.88), which is closely related to the weight of 1000 grains ( r = 0.83) and the number of grains per ear ( r = 0.82).

Bu çalışma Van ekolojik şartlarında 2018-19 ve 2019-20 kış yetiştirme döneminde iki yıl süre ile yürütülmüştür. Deneme Tarla Bitkileri Bölümü uygulama alanında nadas alanlarının azaltılmasında normal ve anıza ekim yöntemleri birbirleri ile kıyaslanarak verim ve verim öğelerinin tespit edilmesi amaçlanmıştır. Çalışma anıza ve normal ekim yöntemleri kullanılarak altı adet tritikale çeşidi (Özer, Alperbey, Melez, Mikham-2002, Tatlıcak-97 ve Karma-2000) Tesadüf Blokları Deneme Desenine göre 3 tekerrürlü olarak yürütülmüştür. Araştırma sonunda yıllar arası fark önemsiz olup, anıza ve normal ekimden elde edilen ortalama başaklanma gün sayısı sırasıyla, 203-204 gün ile 203-204 gün, bitki boyu 95.3-107.6 cm ile 99.0-112.3 cm, m2 başak sayısı 133.0-161.7 adet ile 135.7-175.0 adet, başakta tane sayı 37.4-42.7 adet/bitki ile 36.0-44.0 adet/bitki, başak uzunluğu 7.03-8.50 cm ile 7.40 -8.63 cm, erme süresi 45 - 46 gün ile 44-45 gün, hasat indeksi %30.8-39-4 ile % 30.5-39.3, bin tane ağırlığı 34.2-43.1 g ile 35.2-42.4 g, biyolojik verim 394.7-434.7 kg/da ile 417.3-444.0 kg, tane verimi 123.3- 171.0 kg/da ile 127.3-174.0 kg/da, ham protein oranı %11.3-12.3 ile % 11.9-12.3 arasında değişmiştir. Sonuç olarak Van ekolojik koşullarında nadas alanlarının azaltılmasında anıza ekim yönteminden ümitvar sonuçlar elde edilmiştir.

The experimental data on effect of Bloom & Grow and Immune System fertilizers on growth, development, yield and grain quality of spring durum and soft wheat in light gray forest soils of the Chuvash Republic are presented. The results of two research years revealed that in plants treated with fertilizers, the growth period ‘seedling-ripening’ is reduced by 7-8 days, height of the treated soft wheat plants exceeded the control variant by 12.5 cm, length of the main spike - by 0.4 cm, number of grains per spike - by 6.1, and grain mass per spike - by 0.23 g. Plants of spring durum wheat treated with micronutrient fertilizers exceeded the control variant by 25.1 cm in plant height, length of the main spike, number of grains in it and grain weight significantly exceeded the control variant. The 1000 seed mass exceeded the control variant by 7.28 grams. The increase in the yield of spring soft wheat was 0.89 t/ha (26.3%), and durum wheat - 0.93 t/ha (28.6%). Application of Bloom & Grow and Immune System fertilizers led to an increase in gluten content in spring soft and durum wheat grains, and an improvement in gluten deformation rate to group 1 with the accumulation of minerals.

The TaGS3 homoeologous genes (homoeologs) located on chromosomes 7A, 4A, and 7D in hexaploid wheat were cloned. Relative expression analysis of the three TaGS3 homoeologs revealed that the expression levels of TaGS3-4A and TaGS3-7D in developing grains were higher than that of TaGS3-7A. Genetic evidence showed that TaGS3 was a negative regulator of grain weight and grain size. Fifteen polymorphic sites and five haplotypes were detected in TaGS3-4A. Two molecular markers were developed to distinguish the five haplotypes. Association analysis using 260 accessions from Chinese wheat mini-core collection (MCC) indicated that TaGS3-4A affected thousand grain weight (TGW) and grain length (GL). HAP-4A-1 and HAP-4A-2 were favorable haplotypes that increased TGW and GL and had undergone strong selection during domestication of wheat. In addition, interaction of the TaGS3-4A and TaGS3-7D homoeologs had significant additive effects on the grain traits. Hap-4A-1/Hap-7D-2 was the best haplotype combination in increasing TGW and GL. The frequencies and geographic distributions of favorable TaGS3 haplotypes among 1388 wheat accessions from worldwide sources provided clues for selection of yield-related traits. Our findings demonstrated that TaGS3-4A had significant effects on TGW and GL. Marker-assisted selection of HAP-4A-1/2 combined with HAP-7D-2 has potential to increase wheat yields.

The purpose of our investigation was to identify the features of the depressive effects of the aftereffect of different doses of gamma-rays on winter wheat varieties of local breeding in terms of germination, survival, morphometry, yield. The parameters of germination and survival, the passage of the main phases of ontogenesis in winter wheat plants of French varieties (Flamenko and Ghayta) at the first generation were studied. The influence of mutagenic depression on parameters of yield structure (morphometry of mature plants) was established and the level of their variability was estimated too. In 2019–2020, experiments were conducted in the research fields of the research center of the Dnieper State Agrarian and Economic University. The experiments used seeds of Flamenko and Ghayta varieties, irradiated with gamma rays in doses of 100, 150, 200, 250, 300 Gy. Control was dry seeds. The variety Ghayta can be classified as resistant to gamma-rays, the variety Flamenko corresponded to high-sensitive. Parameter of germination and survival were directly correlated with increasing dose, with a dose of 200 Gy already semi-lethal, a dose of 250 Gy for variety Flamenko was sublethal, 300 Gy doze full-lethal, for the variety Ghayta sublethal was 300 Gy dose by which almost no plant material was obtained. Such parameters as plant height, weight of grains from the main spike and weight of thousand grains, weight of grains from the plant, partially number of grain from the main spike reliably reproduce the mutagenic depression. Depression of the plants is affected by the genotype of the variety more than the dose of mutagen; the plant height parameter clearly demonstrates mutagenic depression. According to the results of factor and discriminant analysis as indicators affected by genotype-mutagenic interaction should be used germination and survival, pollen sterility, plant height, grain weight per spike, weight of thousand grains weight of grains from the plant. Doses of 100–200 Gy are optimal for further use to obtain mutations; it is possible to use a dose of 250 Gy for the variety Ghayta.

Mutated genetic resources play a crucial role and are of utmost importance in gene/allele characterization. Currently, hexaploid wheat mutated resources are rarely available. In the present investigation, a mutated population comprising 1,536 EMS-induced mutation lines (M7 generation) of bread wheat (Triticum aestivum L.) were used as an experimental material. Mutant population was developed and maintained at G.B.P.U.A.T, Pantnagar. The experiment was conducted in augmented block design II. in season 2019-20 at Norman E. Borlaug Crop Research Centre G.B.P.U.A.T, Pantnagar. The study revealed that number of tillers per plant recorded significantly higher direct effect on grain yield per plant followed by number of grains per spike, thousand grain weight, plant height, ear length, flag leaf width, grain length, flag leaf area and number of spikelet per spike. The association between grain yield per plant and these characters was significant. The direct negative effects on grain yield was observed by grain width, flag leaf length and peduncle length.

Maize weevil, Sitophilus zeamais, whose management has largely been via traditional control practices, is a key pest of stored maize grains causing severe losses. This study explored the use of Nigerian Raw Diatomite (RD) in the management of the weevil. A 3-replicated split plot designed laboratory experiment was conducted for 6 months duration. The treatments were Raw Diatomite (RD) at the rate of 250, 500, 750 and 1000 mg/kg and a control (untreated) across four improved maize grain varieties. Data collected were on mortality, F1 progeny produced, grain weight damage, and loss. Data were analyzed with variance analysis and significantly different means were separated using Turkey Kramer HSD test at P

Sixty four genotypes (28 F1,s, 28 F2-populations and their 8 parents) were evaluated for days to heading, plant height, 100-grain weight and grain yield/plant under two sowing dates (Nov., 22nd , normal sowing date and Dec., 30th, late sowing date) in 2017/2018 growing season at the Exp. Farm of South Valley Uni., Qena, Egypt. The differences among parents, F1,s, F2-populations andparents vs crosses were highly significant at both planting dates for all studied traits. Delaying sowing date reduced performance all studied traits. The parents; P3, P4, P6 and P8 and the crosses; P1 × P3, P1 × P6, P1 × P8, P2 × P3, P2 × P5, and P3 × P8 displayed HSI and S less than one and they were relatively heat tolerant and less sensitive to heat of F1 and F2-generations. Highly significant differences due to general (GCA) and specific (SCA) combining abilities were detected for all studied traits. The ratio of GCA to SCA was less than one for all studied traits, indicating that the major effect in the control of these traits was by non-additive gene action, except plant height. The parent P3 was considered as the best combiner for heading, plant height and grain weight, but the parent P2 was considered as the best combiner of F1,s and F2-generations for 100-grain weight and grain yield/plant under both dates. The cross P2 × P8 could be considered as the best combination of F1,s and F2-generations for all studied traits under both planting dates.

Background. Lodging has an extremely negative impact on barley yield: grain quality and planting properties are deteriorated, disease incidence increases, and mechanized harvesting becomes difficult, so it is important to find new sources of lodging resistance in barley and use them in crosses and breeding programs to develop non-lodging barley cultivars.Materials and methods. Experimental work was carried out in 2018 and 2019 at Federal Agricultural Science Center of the North-East (FASC North-East), Kirov. Yield structure components and lodging resistance levels were assessed for 29 accessions from the spring barley collection. The study was based on the International COMECON List of Descriptors for the Genus Hordeum L. (subgen. Hordeum) and Methodological Guidelines for the Study and Preservation of the World Collection of Barley and Oats.Results and conclusions. Lodging resistance was observed to have a strong correlation with yield (r = 0.72) and plant height (r = –0.60), and a medium correlation with tillering (r = 0.40) and number of nodal roots at maturation (r = 0.44). No relationship was found between lodging resistance and morphological features of the second lowest internode, which means that selection of non-lodging forms by these criteria will not be effective. Lodging-resistant accessions demonstrated higher yield, tillering, productivity, 1000 grain weight, and a longer and denser ear compared to nonresistant accessions. Accessions combining high yield with lodging resistance and a set of traits promising for breeding were identified: ‘Belgorodsky 100’, ‘Naran’ (k-30892), ‘Kazminsky’ (k-30926), ‘Shchedry’ (k-31046) (Russia); ‘Syabra’ (k-30917), ‘Raider’ (Belarus); ‘Odesssky 115’ (k-29010, Ukraine), ‘Mie’ (k-30379, Estonia), ‘Rodos’ (k-30256, Poland).

Societal Impact Statement Micronutrients such as zinc and iron are critical for human health. For the world's population that relies on cereal products to obtain micronutrients, the bioavailability (absorption of nutrients in the gut) can be hindered by an anti‐nutritional compound, phytate. Phytate accumulation in grain is affected by soil properties including phosphorus availability and arbuscular mycorrhizal (AM) fungi. Here, we investigated the effects of AM fungi and soil phosphorus fertilization on micronutrient bioavailability in durum wheat and found that fertilization greatly decreased the bioavailability of micronutrients, but AM fungi can take up more micronutrients, which can lead to improved bioavailability when the soil is not fertilized. Summary The bioavailability of micronutrients (zinc [Zn] and iron [Fe]) in cereal crops such as durum wheat is critically important for human nutrition. Bioavailability is a product of complex interactions between plant phosphorus (P) uptake and storage in grain (as phytate), and plant micronutrient uptake. The bioavailability of Zn and Fe in cereal grain is affected by soil nutrient concentrations and associations with arbuscular mycorrhizal (AM) fungi, but has been scarcely studied. A geographically diverse collection of 101 durum wheat genotypes was surveyed for grain bioavailability of Zn and Fe. Ten genotypes were then selected and grown with and without AM fungal inoculation and soil P fertilization to understand the effects of manipulating soil P availability and uptake on micronutrient bioavailability. The strongest negative effect on grain micronutrient bioavailability was soil P fertilization, however, it also led to increased grain weight. Crop variety selection had the greatest variation in the P‐fertilized soil, but AM fungal inoculation had a positive effect on bioavailability in one variety in the non‐fertilized soil. In order to grow more nutritious durum wheat crops, variety selection and AM fungal inoculation are important considerations. In general, there is a trade‐off between grain weight (yield) and micronutrient bioavailability in grain that could be addressed through breeding P‐deficiency tolerant varieties.

Wyjazdy kolekcyjne są jednym z ważniejszych źródeł pozyskiwania materiałów w Krajowym Centrum Roślinnych Zasobów Genowych (KCRZG). Wybór Litwy jako obszaru poszukiwań zasobów genowych był związany z historycznymi relacjami z Polską. W latach 2011 – 2013 przeprowadzono trzy ekspedycje, podczas których zebrano 32 obiekty Avena sativa L. wraz z danymi paszportowymi. Zebrane próbki zostały wysiane na 2,5 m2 poletkach Instytutu Hodowli i Aklimatyzacji Roślin (IHAR-PIB) w Radzikowie w latach 2012, 2013, 2014. Na każdym poletku, ręcznie wysiano 600 nasion. Odnotowywano stan wylegania roślin, pojawiające się choroby, wyliczono masę tysiąca ziaren oraz plon. U większości obiektów wiechowanie występowało później niż u odmian wzorcowych. Lokalne obiekty odmian owsa były wyższe od wzorcowych obiektów a mimo to odznaczały się niskim stopniem wylegania. Lokalne odmiany owsa mogą stanowić źródło pojedynczych, unikalnych cech poszukiwanych przy tworzeniu nowych odmian.

The results of studying the resistance of samples of naked oats from the world collection of the N.I. Vavilov All-Russian Institute of Plant Genetic Resources and varieties of local breeding work to stem rust lesion are presented. The study was carried out in 20172019 in a field experiment in natural conditions in Kemerovo region. The influence of meteorological factors during the vegetation period of naked oat plants on the degree of disease damage was noted: more intense lesion was observed in years with low air temperatures and excessive moisture supply during the period of seedling-ear formation and a large amount of precipitation during the period of filling and maturation of grain. The results of phytopathological analysis of 50 collection samples of naked oats revealed that mid-late samples are more affected by stem rust (74.9% on average for the group). The study (n = 50) revealed the effect of stem rust lesion on the resistance to lodging of crops (r = –0.5751 at R = 0.273), grain size (r = –0.7737 at R = 0.273), and yield of naked oat samples (r = –0.9387 at R = 0.273). Naked oats are highly susceptible to pathogen lesion, 84% of the samples showed very low resistance with a damage index of more than 65.1%. Samples with a low damage degree were identified, characterized by high yield rates, 1000 grain weight, resistance to lodging and smut fungi, and a low level of segregation of hulled grains: Pennline 9010 (USA), Numbat (Australia), Progress (Omsk region), Gehl (Canada), Piband (Leningrad region), g/o-327-1/16, g/o-441-1/17, g/o-444-7/17 (Kemerovo region).

The study was carried out under rainfall and support irrigation conditions based to the random block experiment design with four replication in Diyarbakir province during the 2018-2019 growing season. The aim was to determine the genotypes suitable for being a candidate variety by interpreting the interaction between quality characteristics and grain yield and to contribute to breeding studies. 25 genotypes was used in the experiment. Genotypes were evaluated in terms of agricultural characteristics and reactions to yellow rust disease. According to the variance analysis; It was determined that there is a negative relationship between grain yield and thousand grain weight Also, test weight with protein ratio and zeleny sedimentation amount. Ideal genotypes are G21 in grain yield, Tekin variety in test weight, G6 and G17 in thousand grain weight and protein ratio, G12 and G19 in zeleny sedimentation amount. G2, G8, G13, G18, G21, G22, G23 and G24 were found to be tolerant in terms of reaction to yellow rust disease. The lines that are the best in terms of related features were marked and it was concluded that it would be beneficial to repeat this study in the same location.