DETERMINING MORPHO-PHYSIOLOGICAL ATTRIBUTES INFLUENCING YIELD INCREASE ON FIVE BREAD WHEAT (TRITICUM AESTIVUM) CULTIVARS UNDER DROUGHT STRESS

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MALEKI A.; MORADKHANI H.; DARVISH F.; BABAEI F.; CHAHARSOUGHI AMIN H.; AHMADI J.

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Journal: JOURNAL OF PLANT PRODUCTION SCIENCE (JOURNAL OF AGRICULTURAL RESEARCHES) Year:2010 | Volume:1 | Issue:2 Page(s): 65-77

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Title

DETERMINING MORPHO-PHYSIOLOGICAL ATTRIBUTES INFLUENCING YIELD INCREASE ON FIVE BREAD WHEAT (TRITICUM AESTIVUM) CULTIVARS UNDER DROUGHT STRESS

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Keywords

BREAD WHEATQ3

YIELDQ2

MORPHO-PHYSIOLOGICAL ATTRIBUTESQ2

DROUGHT STRESSQ2

Abstract

In order to make a quantitative assessment of DROUGHT STRESS on YIELD stability and determination of the most resistant genotypes of BREAD WHEAT (Triticum aestivum) an experiment was conducted in a RCB design with three replications both in rain fed and irrigated conditions in the Agricultural Research Field during, 2005-2006, Saleh Abad, Iran. Attributes, including plant height, length of spike, number of seed per spike, 1000 kernel weight, YIELD and also phenologic traits were measured. Analysis of variance showed that most of attributes differed significantly in two conditions. DROUGHT STRESS decreased the YIELD by 50 percentage. Seed YIELD has 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 only with plant height and 1000 kernel weight negative correlation was observed. 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 kernel weight have 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 includes 95.3% of total variance, while under DROUGHT STRESS condition five principle components include %95.18 of total variance. These results can be used for breeding program and selection of resistant variety by using a desirable compound of characteristics.

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APA: Copy

MALEKI, A., MORADKHANI, H., DARVISH, F., BABAEI, F., CHAHARSOUGHI AMIN, H., & AHMADI, J.. (2010). DETERMINING MORPHO-PHYSIOLOGICAL ATTRIBUTES INFLUENCING YIELD INCREASE ON FIVE BREAD WHEAT (TRITICUM AESTIVUM) CULTIVARS UNDER DROUGHT STRESS. JOURNAL OF PLANT PRODUCTION SCIENCE (JOURNAL OF AGRICULTURAL RESEARCHES), 1(2), 65-77. SID. https://sid.ir/paper/201924/en

Vancouver: Copy

MALEKI A., MORADKHANI H., DARVISH F., BABAEI F., CHAHARSOUGHI AMIN H., AHMADI J.. DETERMINING MORPHO-PHYSIOLOGICAL ATTRIBUTES INFLUENCING YIELD INCREASE ON FIVE BREAD WHEAT (TRITICUM AESTIVUM) CULTIVARS UNDER DROUGHT STRESS. JOURNAL OF PLANT PRODUCTION SCIENCE (JOURNAL OF AGRICULTURAL RESEARCHES)[Internet]. 2010;1(2):65-77. Available from: https://sid.ir/paper/201924/en

IEEE: Copy

A. MALEKI, H. MORADKHANI, F. DARVISH, F. BABAEI, H. CHAHARSOUGHI AMIN, and J. AHMADI, “DETERMINING MORPHO-PHYSIOLOGICAL ATTRIBUTES INFLUENCING YIELD INCREASE ON FIVE BREAD WHEAT (TRITICUM AESTIVUM) CULTIVARS UNDER DROUGHT STRESS,” JOURNAL OF PLANT PRODUCTION SCIENCE (JOURNAL OF AGRICULTURAL RESEARCHES), vol. 1, no. 2, pp. 65–77, 2010, [Online]. Available: https://sid.ir/paper/201924/en

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