THE DETERMINATION OF THE INFLUENTIAL MORPHO-PHYSIOLOGICAL ATTRIBUTES ON THE YIELD INCREASE IN FIVE BREAD WHEAT (TRITICUM AESTIVUM) VARIETIES UNDER DROUGHT STRESS

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MALEKI A.; BABAEI F.; SEIIEDAN P.

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Journal: JOURNAL OF RESEARCH IN CROP SCIENCES Year:2009 | Volume:2 | Issue:5 Page(s): 47-58

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Title

THE DETERMINATION OF THE INFLUENTIAL MORPHO-PHYSIOLOGICAL ATTRIBUTES ON THE YIELD INCREASE IN FIVE BREAD WHEAT (TRITICUM AESTIVUM) VARIETIES UNDER DROUGHT STRESS

Author(s)

MALEKI A. | BABAEI F. | SEIIEDAN P. | Issue Writer Certificate

Keywords

BREAD WHEATQ2

YIELDQ2

MORPHO-PHYSIOLOGICAL ATTRIBUTES AND DROUGHT STRESSQ2

Abstract

To compare the YIELD and study the effects of drought stress on five BREAD WHEAT (Triticum aestivum) varieties under irrigated and non-irrigated conditions and experiment was conducted in a RCBD (Randomized Complete Block Design) with three replications. Five BREAD WHEAT varieties (Chamran, Atrak, Zagros, Koohdasht, and Chanab) were cultivated both in irrigated and non-irrigated conditions in Saleh Abad, Ilam Province, 2005-06. Attributes, including plant height, length of spike, number of seeds per spike, 1000 kernels weight, YIELD and also phenologic traits were measured. Analysis of variance showed that most of attributes differed significantly in two conditions. The results indicated that Seed YIELD had significant positive correlation with phenologic traits, such as days to heading, days to maturity, seed filling period, number of spikelet per spike, and number of seed per spike and negative correlation was observed only with plant height and 1000 kernels weight. Results of stepwise regression indicated that when the seed YIELD considered as the dependent variable, number of seed per spike and spikelet per spike and 1000 kernels weight had the most influence on YIELD and accounted for nearly %93 and %96 of YIELD variation in irrigated and non–irrigated conditions, respectively. Principal components analysis under non-stress condition showed that the four principle components included 95.3% of total variance as: YIELD attributes elongation growth, 1000 kernels weight, and YIELD components, respectively. Under drought stress condition five principal components included %95.18 of total variance as: YIELD attributes and elongation growth components, respectively. Finally, these results can be used for breeding programs and selection of high YIELD drought tolerant varieties by using a desirable compound of characteristics.

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APA: Copy

MALEKI, A., BABAEI, F., & SEIIEDAN, P.. (2009). THE DETERMINATION OF THE INFLUENTIAL MORPHO-PHYSIOLOGICAL ATTRIBUTES ON THE YIELD INCREASE IN FIVE BREAD WHEAT (TRITICUM AESTIVUM) VARIETIES UNDER DROUGHT STRESS. JOURNAL OF RESEARCH IN CROP SCIENCES, 2(5), 47-58. SID. https://sid.ir/paper/167925/en

Vancouver: Copy

MALEKI A., BABAEI F., SEIIEDAN P.. THE DETERMINATION OF THE INFLUENTIAL MORPHO-PHYSIOLOGICAL ATTRIBUTES ON THE YIELD INCREASE IN FIVE BREAD WHEAT (TRITICUM AESTIVUM) VARIETIES UNDER DROUGHT STRESS. JOURNAL OF RESEARCH IN CROP SCIENCES[Internet]. 2009;2(5):47-58. Available from: https://sid.ir/paper/167925/en

IEEE: Copy

A. MALEKI, F. BABAEI, and P. SEIIEDAN, “THE DETERMINATION OF THE INFLUENTIAL MORPHO-PHYSIOLOGICAL ATTRIBUTES ON THE YIELD INCREASE IN FIVE BREAD WHEAT (TRITICUM AESTIVUM) VARIETIES UNDER DROUGHT STRESS,” JOURNAL OF RESEARCH IN CROP SCIENCES, vol. 2, no. 5, pp. 47–58, 2009, [Online]. Available: https://sid.ir/paper/167925/en

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