EFFECT OF DROUGHT STRESS ON YIELD AND YIELD COMPONENTS OF THREE GRAIN SORGHUM CULTIVARS

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TABATABAEI S.A.; DEHGHAN HARATI H.

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Journal: CROP PHYSIOLOGY Year:2013 | Volume:4 | Issue:16 Page(s): 53-64

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Title

EFFECT OF DROUGHT STRESS ON YIELD AND YIELD COMPONENTS OF THREE GRAIN SORGHUM CULTIVARS

Author(s)

TABATABAEI S.A. | DEHGHAN HARATI H. | Issue Writer Certificate

Keywords

GRAIN SORGHUMQ3

YIELDQ2

YIELD COMPONENTSQ2

IRRIGATION STRESSQ2

Abstract

In order to investigate the effect of different irrigation regimes on growth, YIELD and YIELD components of GRAIN SORGHUM cultivars, this experiment was conducted as a split plot in randomized complete block design with three replications in research farm of Agriculture and Natural Resources Research Center of Yazd during the summer of 2011. Main plots were included 3 irrigation regimes I1, I2 and I3 (irrigation after 7, 10 and 13 days) and sub-treatment consisted of 3 GRAIN SORGHUM cultivars Payam, Sepideh and Kimia. Sowing was done with hand on 26 June. Distance between rows and distance on rows were considered 60 and 10 cm, respectively. Different traits were measured and recorded during growth stage and harvest time. Results indicated that increasing irrigation intervals from I1 to I3 treatment reduced length of cultivars growth period, panicle length, number of panicles in plant, number of kernel in panicle, 1000-kernel weight and grain YIELD of sorghum cultivars significantly. As grain YIELD in I2 and I3 was reduced to the amount of 10.5% and 30%. There was a significant difference between grain YIELD and YIELD components of cultivars. Sepideh cultivar had the maximum panicle length and number of kernel in panicle. Grain YIELD from the highest to lowest amount was belonged to Sepideh, Payam and Kimia cultivars, respectively. As drought stress reduced YIELD of Payam cultivar (57% reduction in I3) more than other cultivars, Sepideh cultivar had the minimum YIELD reduction amount (37 percent) and Kimia cultivar had a YIELD reduction to 44 percent.

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APA: Copy

TABATABAEI, S.A., & DEHGHAN HARATI, H.. (2013). EFFECT OF DROUGHT STRESS ON YIELD AND YIELD COMPONENTS OF THREE GRAIN SORGHUM CULTIVARS. CROP PHYSIOLOGY, 4(16), 53-64. SID. https://sid.ir/paper/174485/en

Vancouver: Copy

TABATABAEI S.A., DEHGHAN HARATI H.. EFFECT OF DROUGHT STRESS ON YIELD AND YIELD COMPONENTS OF THREE GRAIN SORGHUM CULTIVARS. CROP PHYSIOLOGY[Internet]. 2013;4(16):53-64. Available from: https://sid.ir/paper/174485/en

IEEE: Copy

S.A. TABATABAEI, and H. DEHGHAN HARATI, “EFFECT OF DROUGHT STRESS ON YIELD AND YIELD COMPONENTS OF THREE GRAIN SORGHUM CULTIVARS,” CROP PHYSIOLOGY, vol. 4, no. 16, pp. 53–64, 2013, [Online]. Available: https://sid.ir/paper/174485/en

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