نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشجوی سابق دکتری، ژنتیک بیومتری، دانشگاه زنجان
2 کارشناس پژوهشهای کاربردی، مرکز تحقیقات حفاظت خاک و آب در اراضی دیم دانشگاه تهران (کوهین)
3 استادیار، گروه زراعت و اصلاح نباتات، دانشکدۀ کشاورزی، دانشگاه زنجان
4 استاد، گروه زراعت و اصلاح نباتات، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
In this study, response of 64 Kabuli chickpea genotypes under drought stress was conducted by 8*8 simple lattice designs under non-stress and stress conditions on the Research Field of Koohin (Tehran University). According to MP, GMP, HARM, STI, YI, K1STI and K2STI, genotype No-51, according to SSI, YSI, YR and RDI, genotype No-18, according to TOL, ATI, SSPI and DRI, genotype No-16, according to DI and SNPI, genotype No-42 were identified as the most tolerant genotypes. Indices of MP, GM, HARM, STI, TOL, YI, DI, ATI, SSPI, SNPI, K1STI and K2STI had robust and positive correlation with yield in non stress and stress conditions and introduced for selection of tolerate and sensitive genotypes to drought stress. Factor coefficient in first factor with explanation of 62.57%, gave the highest scores to genotypes of 51, 60, 53 and 52 (Zone of A) as most tolerance gave the least scores to genotypes of 32, 27, 24 and 62 as most sensitive (Zone of D) and second factors with explanation of 33.28% gave the highest scores to genotypes of 29, 51, 60 and 28 (Zone of A) as most tolerance gave the least scores to genotypes of 18, 16, 42 and 24 as most sensitive (Zone of D and C). The cluster analysis based on drought tolerance indices, the genotypes were grouping in three clusters, so that tolerant genotypes grouped in cluster three, the sensitive genotypes grouped in cluster two and the semi sensitive genotypes grouped in cluster one.
Abbreviations: YP= potential yield; YS = Stress yield; MP= Mean productivity; GMP= Geometric Mean productivity; HARM= Harmonic Mean; SSI= Susceptibility Stress index; STI= Stress Tolerance index; TOL= Tolerance index; YI= Yield index; YSI= Yield stabilty index; DI= Drought resistance index; ATI= Abiotic tolerance index; SSPI= Stress Susceptivity Percent Index; SNPI= Stress Non-stress productivity index; K1STI & K2STI = Modified Stress Tolerance index; RDI= Relative Drought index; DRI= Drought Response index.
کلیدواژهها [English]