Evaluation of genotype × environment interaction in durum wheat (Triticum turgidum var. durum L.) regional yield trials

نویسندگان

  • Ahmadi, Malak Masoud Agricultural and Natural Resources Research and Education Center of Northern Khorasan Agricultural Research, Education and Extension Organization, AREEO, Bojnourd, Iran
  • Mohammadi, Reza Dryland Agricultural Research Institute, Sararood Branch, Agricultural Research, Education and Extension Organization, AREEO, Kermanshah, Iran
  • Sadeghzadeh, Behzad Dryland Agricultural Research Institute, Agricultural Research, Education and Extension Organization, AREEO, Maragheh, Iran
چکیده مقاله:

The objective of this experiment was to analyze genotype × environment (GE) interaction for grain yield of 20 durum wheat genotypes to identify the yield stability and adaptability of genotypes using GGE biplot method as well as some univariate stability statistics. The genotypes were evaluated in three rainfed stations of Sararood (Kermanshah), Maragheh and Shirvan, Iran under both rainfed and supplemental irrigation conditions in three cropping cycles from 2015 to 2018. Combined analysis of variance showed significant differences among the genotypes, environments and GE interaction effects. The environment effect was accounted for the 81.9% followed by GE interaction for 5.2% and genotype for 2.1% of total sum ofsquare (TSS). The large size of the GE interaction variance relative to genotype, suggests the possible existence of sub-environmental groups and genotypes with high grain yield and specific adaptation. Mean grain yield of genotypes across all environments was 2649 kg.ha-1, and 2212 and 3303 kg.ha-1 under rainfed and supplemental irrigation conditions, respectively. The highest mean yield was observed for breeding line G15 (2622 kg.ha-1) under rainfed conditions, and G3 (3744 kg.ha-1) under supplemental irrigation conditions. The GGE biplot analysis could differentiate environments to sub-environmental groups with top yielding genotypes. According to GGE biplot, breeding lines G14, G15, G8, G16 and G11 were identified as ideal genotypes with high mean grain yield and yield stability performance. Based on stability parameters the high yielding breeding line G14 identified to have the most stable grain yiled. The environments belonged to Maragheh location with higher "discriminativeness and representativeness" ability was found as ideal location for evaluation of winter durum wheat germplasm. The results also showed genetic gains for high grain yield and yield stability for durum wheat breeding program under cold and temperate cold dryland conditions of Iran.   

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Agrobacterium-mediated transformation of durum wheat (Triticum turgidum L. var. durum cv Stewart) with improved efficiency

An efficient Agrobacterium-mediated durum wheat transformation system has been developed for the production of 121 independent transgenic lines. This improved system used Agrobacterium strain AGL1 containing the superbinary pGreen/pSoup vector system and durum wheat cv Stewart as the recipient plant. Acetosyringone at 400 microM was added to both the inoculation and cultivation medium, and picl...

متن کامل

Traits Explaining Durum Wheat (Triticum turgidum L. spp. Durum) Yield in Dry Chilean Mediterranean Environments

Yield under water stress (YS) is used as the main criterion in the selection of wheat varieties for dry Mediterranean environments. It has been proposed that selection of genotypes using YS assisted by morphological and physiological traits associated with YS is more efficient in selecting high yielding genotypes for dry environments. A study was carried out at the Antumapu Experiment Station o...

متن کامل

Variations in Content and Extractability of Durum Wheat (Triticum turgidum L. var durum) Arabinoxylans Associated with Genetic and Environmental Factors

Arabinoxylans (AX) represent the most abundant components of non-starch polysaccharides in wheat, constituting about 70% of cell wall polysaccharides. An important property of AX is their ability to form highly viscous water solutions; this peculiarity has a significant impact on the technological characteristics of wheat and determines the physiologically positive influence in consumption. Dur...

متن کامل

Evaluation of Genotype × Environment Interaction and Determining Grain Yield Stability of Durum Wheat Genotypes in Uniform Regional Yield Trials in Semi-Warm Rainfed Areas

There are different methods for study the genotype × environment interactions and determining stable genotypes such as parametric, non-parametric and multivariate methods. In this research, 19 selective genotypes from advanced trials of durum wheat at 2011-2012 agronomic year, have been cultivated with Dehdasht check cultivar for three growing years (2012-2015) in five locations (including Gach...

متن کامل

SNP-based association analysis for seedling traits in durum wheat (Triticum turgidum L. durum (Desf.))

In the present study, 150 accessions of worldwide originated durum wheat germplasm (Triticum turgidum spp. durum) were observed for major seedling traits and their growth. The accessions were evaluated for major seedling traits under controlled conditions of hydroponics at the 13th, 20th, 27th and 34th day-after germination. Biomass traits were measured at the 34th day-after germination. Correl...

متن کامل

Association of Agronomic Traits with SNP Markers in Durum Wheat (Triticum turgidum L. durum (Desf.))

Association mapping is a powerful approach to detect associations between traits of interest and genetic markers based on linkage disequilibrium (LD) in molecular plant breeding. In this study, 150 accessions of worldwide originated durum wheat germplasm (Triticum turgidum spp. durum) were genotyped using 1,366 SNP markers. The extent of LD on each chromosome was evaluated. Association of singl...

متن کامل

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ذخیره در منابع من قبلا به منابع من ذحیره شده

{@ msg_add @}


عنوان ژورنال

دوره 22  شماره 1

صفحات  15- 31

تاریخ انتشار 2020-04

با دنبال کردن یک ژورنال هنگامی که شماره جدید این ژورنال منتشر می شود به شما از طریق ایمیل اطلاع داده می شود.

کلمات کلیدی

کلمات کلیدی برای این مقاله ارائه نشده است

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023