Effect of terminal drought stress on some agronomic traits of 20 elite bread wheat genotypes

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Nasiri Khalilelahi S.; SASANI S.; AHMADI G.; DANESHVAR M.

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Journal: Environmental Stresses in Crop Sciences Year:2020 | Volume:13 | Issue:3 Page(s): 683-699

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Information Journal Paper

Title

Effect of terminal drought stress on some agronomic traits of 20 elite bread wheat genotypes

Author(s)

Nasiri Khalilelahi S. | SASANI S. | AHMADI G. | DANESHVAR M. | Issue Writer Certificate

Keywords

BiplotQ2

Drought tolerance indicesQ2

Principal component analysisQ2

Ranking methodQ2

Abstract

At this research, the effect of terminal drought stress was evaluated on kernel yield and its components of 20 bread-wheat genotypes including cultivars and elite lines. The experiment was conducted using randomized complete blocks design (CRBD) with three replicates under non-stress and terminal drought stress conditions at Islamabad-e-Gharb Agricultural Research Station, Kermanshah Agriculture and Natural Resources Research and Education Centre, AREEO, Kermanshah, Iran during 2011-2012 cropping year. Simple analysis of variance exhibited non-significant differences among the genotypes for all of the studied traits under both non-stress and terminal drought stress conditions. The result of the combined analysis of variance indicated there is no significant difference among genotypes for all of the studied traits except grain number per spike, peduncle length, penultimate length and day to physiological maturity. The effect of terminal drought stress was significant on all of the studied traits except biological yield, the number of kernels per spike and peduncle length. Drought stress reduced the average of all studied traits except peduncle length. Drought stress had the highest effect on kernel yield and reduced it’ s by 55. 36% compared to non-stress conditions. Genotype 8 had the lowest percentage reduction. The mean kernel yield of genotypes was 8955 and 3997 kg/ha under non-stress and stress conditions, respectively. Genotypes 13, 20, 8, 9, 5 and 6 were recognized as the most tolerant genotypes using Ranking method. These genotypes were identified as the best genotypes based on Biplot diagrams under both non-stress and terminal drought stress conditions. These genotypes can be used in breeding programs to create bread wheat tolerant cultivars.

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APA: Copy

Nasiri Khalilelahi, S., SASANI, S., AHMADI, G., & DANESHVAR, M.. (2020). Effect of terminal drought stress on some agronomic traits of 20 elite bread wheat genotypes. ENVIRONMENTAL STRESSES IN CROP SCIENCES, 13(3 ), 683-699. SID. https://sid.ir/paper/389407/en

Vancouver: Copy

Nasiri Khalilelahi S., SASANI S., AHMADI G., DANESHVAR M.. Effect of terminal drought stress on some agronomic traits of 20 elite bread wheat genotypes. ENVIRONMENTAL STRESSES IN CROP SCIENCES[Internet]. 2020;13(3 ):683-699. Available from: https://sid.ir/paper/389407/en

IEEE: Copy

S. Nasiri Khalilelahi, S. SASANI, G. AHMADI, and M. DANESHVAR, “Effect of terminal drought stress on some agronomic traits of 20 elite bread wheat genotypes,” ENVIRONMENTAL STRESSES IN CROP SCIENCES, vol. 13, no. 3 , pp. 683–699, 2020, [Online]. Available: https://sid.ir/paper/389407/en

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