STUDY ON THE EFFECT OF WATER STRESS AT DIFFERENT GROWTH STAGES ON THE YIELD AND GRAIN QUALITY OF WHEAT

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RAZAVI R.

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Journal: Iranian Journal of Soil Research Year:2008 | Volume:22 | Issue:1 Page(s): 137-145

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Title

STUDY ON THE EFFECT OF WATER STRESS AT DIFFERENT GROWTH STAGES ON THE YIELD AND GRAIN QUALITY OF WHEAT

Author(s)

RAZAVI R. | Issue Writer Certificate

Keywords

WHEATQ3

WATER STRESSQ2

IRRIGATION STAGEQ3

WATER USE EFFICIENCYQ2

YIELDQ2

GRAIN QUALITYQ2

Abstract

Drought is an important environmental factor which reduces WHEAT production in arid and semi arid regions. The response of WHEAT to three levels of WATER STRESS at three growth stages, namely, heading, flowering and grain filling was studied under field conditions at Kahriz Station of Uromieh for two years. The experimental design was factorial (complete block) in three replications. Experimental treatments were time and amount of irrigation and included: t1=irrigation at heading, flowering and grain filling stages. t2= irrigation at flowering and grain filling stages. t3= irrigation only at grain filling stage. Treatments of water amount were: W1, W2, W3, respectively, 40, 70, and 100% of evaporation from class A pan. The MSTATC software was used for statistical analyses of grain YIELD WATER USE EFFICIENCY, 1000grain weight, and protein percentage. The main effect of irrigation timing and amount and their interaction showed significant differences for grain YIELD, WATER USE EFFICIENCY, 1000 grain weight and protein percentage. The comparison of means was done by Duncan, s method. The highest significant grain YIELD, 5.59 t/ha, was obtained with t1 W2 (irrigation at 3 growth stages with water application 70% of class A pan). At all stages of growth, moderate and severe WATER STRESS decreased plant height, 1000 grain weight, grain YIELD and WATER USE EFFICIENCY. WHEAT was most sensitive to WATER STRESS during the flowering stage. Results suggest that in Kahriz area and similar other locations, when water is scarce or limited, WHEAT crop should be irrigated at heading and flowering stages with an amount equal to 70% of evaporation from class A pan.

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APA: Copy

RAZAVI, R.. (2008). STUDY ON THE EFFECT OF WATER STRESS AT DIFFERENT GROWTH STAGES ON THE YIELD AND GRAIN QUALITY OF WHEAT. IRANIAN JOURNAL OF SOIL AND WATERS SCIENCES, 22(1), 137-145. SID. https://sid.ir/paper/15970/en

Vancouver: Copy

RAZAVI R.. STUDY ON THE EFFECT OF WATER STRESS AT DIFFERENT GROWTH STAGES ON THE YIELD AND GRAIN QUALITY OF WHEAT. IRANIAN JOURNAL OF SOIL AND WATERS SCIENCES[Internet]. 2008;22(1):137-145. Available from: https://sid.ir/paper/15970/en

IEEE: Copy

R. RAZAVI, “STUDY ON THE EFFECT OF WATER STRESS AT DIFFERENT GROWTH STAGES ON THE YIELD AND GRAIN QUALITY OF WHEAT,” IRANIAN JOURNAL OF SOIL AND WATERS SCIENCES, vol. 22, no. 1, pp. 137–145, 2008, [Online]. Available: https://sid.ir/paper/15970/en

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