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Stability Parameters for Comparing Bread Wheat Genotypes under Combined Heat and Drought Stress

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Last updated: 01 Jan 2025

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Abstract

A COMPARISON of ten local and twelve introduced wheat accessions was performed on twelve different induced environments (2 years × 2 sowing dates × 3 water stresses) to analyze genotype × environment interactions (G×E) and estimate stability indices of yield and its components. Mainly the total variations of studied traits were due to the main effects of environmental factors and their interaction, whereas the significant environmental variations were ranged from 10.62% (harvest index) to 43.95% (spike kernels weight). The genotypes differed significantly for all studied traits, moreover these differences ranged from 6.82 % to 50.42% of total variation in 1000-kernel weight and no. of kernels/spike, respectively. G×E interactions were highly significant and their contributions to the total SS accounted for 40.17, 30.78, 18.17, 22.02, 25.46, 18.61 and 88.46% for heading date, no. of spikes/m2, no. of kernels/spike, spike kernel weight, 1000-kernel weight, grain yield/m2 and harvest index, respectively. Three genotypes (NGB10893, Sids1 and Giza168) were high yielding and stable for most of the studied traits. Thus, these three genotypes could be promoted to the next extensive breeding programs.

DOI

10.21608/agro.2014.69

Keywords

performance, Genotype × environment interaction, Stability parameters, Wheat

Volume

36

Article Issue

2

Related Issue

36

Issue Date

2014-12-01

Receive Date

2014-07-20

Publish Date

2014-12-01

Page Start

123

Page End

146

Print ISSN

0379-3575

Online ISSN

2357-0288

Article File

AGRO_Volume 36_Issue 2_Pages 123-146.pdf

PDF . 5.1MB

Link

https://agro.journals.ekb.eg/article_69.html

Detail API

https://agro.journals.ekb.eg/service?article_code=69

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Original Article

Type Code

17

Publication Type

Journal

Publication Title

Egyptian Journal of Agronomy

Publication Link

https://agro.journals.ekb.eg/

MainTitle

Stability Parameters for Comparing Bread Wheat Genotypes under Combined Heat and Drought Stress

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Article

Created At

22 Jan 2023