DROUGHT STRESS EFFECTS ON THE GRAIN YIELD AMONG DIFFERENT BARLEY CULTIVARS

被引：5

作者：

Arshadi, Aram ^{[1
]}

Karami, Ezzat ^{[2
]}

Khateri, Behzad ^{[3
]}

Rezabakhsh, Payam ^{[4
]}

机构：

[1] Razi Univ, Dept Plant Breeding, Campus Agr & Nat Resources, Kermanshah, Iran

[2] Islamic Azad Univ, Coll Agr & Nat Resources, Sanandaj Branch, Dept Agron & Plant Breeding, Sanandaj, Kurdistan, Iran

[3] Islamic Azad Univ, Maragheh Branch, Dept Biotechnol, Maragheh, Iran

[4] Islamic Azad Univ, Mahabad Branch, Dept Agroecol, Mahabad, Iran

来源：

Genetika-Belgrade | 2016年 / 48卷 / 03期

关键词：

barley; biplot; drought stress; drought tolerance indices; DURUM-WHEAT; TOLERANCE; RESISTANCE; TRAITS;

D O I：

10.2298/GENSR1603087A

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

We examined commercial barley cultivars in two sequential growing season by including irrigation and rainfed conditions under a randomized complete block experimental design. There were positive and significant correlations between the yeild and either of the indices including Mean productivity (MP), Stress Tolerance Index (STI), Geometric Mean Productivity (GMP), Harmonic Mean Productivity (HMP), and Mean Relative Performance (MRP) in both irrigated and drought conditions. The PC1 and PC2 justified 94.86 and 94.44% of total variation in the first year and second year, respectively. According to 3-dimensional diagram and based on STI, genotypes 2, 3, and 8 in the first year and gentypes 4, 3, 8, and 2 in the second year were clustered together in group A, and therefore, called the most tolerant cultivars to drought stress.

引用

页码：1087 / 1100

页数：14

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