Genetic variation of agronomic traits in a global collection of oats (Avena sp.)
- سال انتشار: 1402
- محل انتشار: مجله فیزیولوژی و پرورش گیاهان، دوره: 13، شماره: 2
- کد COI اختصاصی: JR_BREDNG-13-2_010
- زبان مقاله: انگلیسی
- تعداد مشاهده: 224
نویسندگان
Department of Plant Genetics and Production, Campus of Agriculture and Natural Resources, Razi University, Kermanshah, Iran
Department of Plant Genetics and Production, Campus of Agriculture and Natural Resources, Razi University, Kermanshah, Iran; Cereal Research Centre, Razi University, Kermanshah, Iran
Department of Plant Genetics and Production, Campus of Agriculture and Natural Resources, Razi University, Kermanshah, Iran; Cereal Research Centre, Razi University, Kermanshah, Iran
چکیده
This study aimed to evaluate the variation in agronomic traits of ۳۶۱ cultivated oat genotypes and to identify superior genotypes for oat breeding programs. The experiment was conducted as a simple square lattice design with two replications for two growing seasons (۲۰۱۸-۲۰۱۹ and ۲۰۱۹-۲۰۲۰) in Kermanshah, Iran. There was a significant difference among oat genotypes. The highest grain yield (GY) was obtained in the “OX۸۷:۰۸۰-۲” and “LA Prevision” genotypes. Furthermore, genotypes “Rubida” and “VDO-۹۳۱-۱” were superior regarding the biomass. Several analyses were performed using the best linear unbiased prediction estimates. The correlation coefficients showed a significant positive relationship between GY and biomass, ۱۰۰۰-kernel weight (TKW), and the number of panicles per plot. Biomass was positively and significantly correlated with all studied traits, except TKW. The number of grains per panicle (NGPP) and TKW had the highest positive direct effects on the GY and NPPP imposed the highest positive indirect effect through TKW. While the highest negative indirect effect was exerted by the NGPP through the TKW. The results of pseudo-F for cluster analysis grouped genotypes in five separate groups. The fifth group had the highest values for GY, biomass, TKW, and NPPP. So, these genotypes could be considered as qualified parents to produce superior lines in breeding programs.کلیدواژه ها
Agronomic Traits, BLUPs, Genetic Diversity, multivariate analyses, oatsاطلاعات بیشتر در مورد COI
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