Response of various bread wheat genotypes to different planting method and terminal drought stress at southern Fars province

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BARATI V.; BIJANZADEH E.; BEHPOURI A.; ZINATI Z.

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Journal: PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH) Year:2019 | Volume:10 | Issue:35 Page(s): 242-255

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Title

Response of various bread wheat genotypes to different planting method and terminal drought stress at southern Fars province

Author(s)

BARATI V. | BIJANZADEH E. | BEHPOURI A. | ZINATI Z. | Issue Writer Certificate

Keywords

Grain yieldQ2

water use efficiency and irrigation regimeQ1

Abstract

Fars is the largest wheat producer province in Iran. In terms of planted area and output, wheat (Triticum aestivum L. ) is the number one crop in Fars and currently almost all irrigated wheat is conventionally planted in narrow spaced rows or broadcasting on the flat and is irrigated by flood irrigation within bordered basins. In order to study the response of wheat genotypes to flat planting and bed planting under different irrigation regimes, experiments were conducted in Darab regionattwo consecutive growing seasons (2010-2011 and 2011-2012). The experimental design was split-split plot with three replications. The main factor was two irrigation regimes (normal irrigation and irrigation cut off after flowering stage). Sub plots were two planting methods (FP: flat planting, BP: bed planting). The sub-sub plots were four wheat genotypes (Shiroudi-local check, Chamran 2, Aflak and a promising line: S-82-10). Results indicated that, post anthesis drought stress significantly (P ≤ 0. 05) decreased Grain yield and its components in all genotypes. Grain yield shows highest correlation with grain mass (r = 0. 742**) as compared with the other Grain yield components under drought stress condition. This result indicated that, Grain yield reduction was mainly affected by grain mass decrement under water stress conditions. The main reason of Grain yield reduction in stress condition was reduction in grain number per spike and grain weight. The Aflak cultivar produced the highest Grain yield (5712 kg ha-1) in non-stress condition while the highest Grain yield in drought stress (3148 kg ha-1) condition was belonged to Shiroudi cultivar. The biological yield and harvest index were positively affected with bed planting by 14% and 3%, respectively. The bed planting method improved WUE (water use efficiency) and Grain yield by more than 27% and 16%, respectively.

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APA: Copy

BARATI, V., BIJANZADEH, E., BEHPOURI, A., & ZINATI, Z.. (2019). Response of various bread wheat genotypes to different planting method and terminal drought stress at southern Fars province. PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH), 10(35 ), 242-255. SID. https://sid.ir/paper/372847/en

Vancouver: Copy

BARATI V., BIJANZADEH E., BEHPOURI A., ZINATI Z.. Response of various bread wheat genotypes to different planting method and terminal drought stress at southern Fars province. PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH)[Internet]. 2019;10(35 ):242-255. Available from: https://sid.ir/paper/372847/en

IEEE: Copy

V. BARATI, E. BIJANZADEH, A. BEHPOURI, and Z. ZINATI, “Response of various bread wheat genotypes to different planting method and terminal drought stress at southern Fars province,” PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH), vol. 10, no. 35 , pp. 242–255, 2019, [Online]. Available: https://sid.ir/paper/372847/en

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