evolution of stress tolerance indices in durum wheat genotypes

نویسندگان
چکیده

in order to study stress tolerance indices and identifying tolerance genotypes to drought stress condition 16 genotypes of durum wheat were assessed in a randomized complete block design with four replications under two irrigated and rainfed conditions in the research station located in west of iran ilam in 2006- 2007. results showed that variation in among durum wheat genotypes under irrigated and rainfed conditions. the highest stress yield, harmonic mean, geometric mean productivity and stress tolerant index were related to the genotype omrabi3. correlation analysis between indices, potential and yield produced under stress indicated that the most suitable criteria for identifying tolerance durum wheat genotypes under irrigated and rainfed conditions were mean productivity and geometric mean productivity. multivariate biplot indicated that the genotypes omrabi3, mrb3/mna1 and zardak were located next the vectors of drought tolerance indices, mean productivity, geometric mean productivity, stress tolerant index and harmonic mean. distribution of the genotypes in the biplot space indicated that the presence of genetic diversity among the genotypes for drought stress. cluster analysis showed the farthest genetic distance between droughts tolerance genotypes were omrabi3, mrb3/mna1, zardak and also drought susceptible genotype were 15/a/margheg and 9/a/kordestan.

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

Evaluating Wheat Genotypes Using Different Stress Tolerance Indices

1 Wheat Research Center, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh ABSTRACT. Twenty five spring wheat genotypes were evaluated for terminal heat stress tolerance in field environments in the Agro Ecological Zone-11 of Bangladesh, during 2009-2010 cropping season. The experiments were conducted at Wheat Research Centre, Bangladesh Agricultural Research Institute, using rand...

متن کامل

Selecting High Zinc-efficient and Assessment of Zinc Stress Tolerance of the Wheat Durum Genotypes

At percent, Zn stress tolerance using novel genetic resources is an important mitigation strategy for plant breeding. In this study, thirty-five durum wheat genotypes with different growth habits were evaluated under normal (non-stress) and Zn deficient stress during the 2014-15 cropping season. A total of ten Zn stress tolerance indices including stress tolerance index (STI), relative zinc-def...

متن کامل

evaluation of terminal drought tolerance in durum wheat genotypes by using of drought tolerance indices

in order to investigation of response of durum wheat genotypes to terminal drought stress, this experiment was conducted in neishabour agricultural research station during two growing seasons of 2004-2005 and 2005-2006. seventeen advanced durum wheat genotypes, two bread wheat cultivars and one durum wheat cultivar (i.e. 20 genotypes and cultivars) were evaluated in two separate experiments (no...

متن کامل

Evaluation of Agro-Physiological Characteristics and Drought Tolerance in Some of Durum Wheat Breeding Genotypes

In order to study of agronomic, physiological characteristics, drought tolerance and to identify  Agro-physiological traits associated with drought tolerance, 19 durum wheat genotypes consisting of 17 advanced breeding lines and two control cultivars (Saji and Zahab) were evaluated in a randomized complete blocks design with three replicated under both stress (rainfed condition) and non-stress ...

متن کامل

Evaluation of drought Tolerance Indices in Dryland Bread wheat Genotypes under Post-Anthesis drought Stress

Post-anthesis drought stress is the most important problem affecting wheat production in dryland fields, specially in Mediterranean regions. The main objective of this research was to evaluate drought tolerance indices in dryland wheat genotypes under post-anthesis drought stress. The research was including two different experiments. In each experiment, twenty dryland bread wheat genotypes were...

متن کامل

EffEctivE sElEction critEria for assEssing drought strEss tolErancE in durum whEat (TriTicum durum dEsf.)

Drought is a wide-spread problem seriously influencing durum wheat (Triticum durum Desf.) production and quality, but development of resistant cultivars is hampered by the lack of effective selection criteria. The objective of this study was to evaluate the ability of several selection indices to identify drought resistance cultivars under a variety of environmental conditions. Twenty four duru...

متن کامل

منابع من

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


عنوان ژورنال:
پژوهش های تولید گیاهی

جلد ۱۷، شماره ۲، صفحات ۳۹-۵۸

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023