A STUDY OF BARLEY (HORDEUM VULGARE L.) YIELD DETERMINING TRAITS IN STRESS AND NON-STRESS CONDITIONS

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FAZEL NAJAFABADI M.; BIHAMTA M.R.; NIKKHAH H.R.; PEIGHAMBARI S.A.

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Journal: Iranian Journal of Field Crop Science Year:2009 | Volume:40 | Issue:1 Page(s): 55-63

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Information Journal Paper

Title

A STUDY OF BARLEY (HORDEUM VULGARE L.) YIELD DETERMINING TRAITS IN STRESS AND NON-STRESS CONDITIONS

Author(s)

FAZEL NAJAFABADI M. | BIHAMTA M.R. | NIKKHAH H.R. | PEIGHAMBARI S.A. | Issue Writer Certificate

Keywords

BARELYQ2

DROUGHT STRESSQ2

MORPHOLOGICAL TRAITSQ2

PATH ANALYSISQ2

Abstract

Drought is considered as a main abiotic constraint, limiting crops, specially cereals' yield throughout in the world. With regard to the importance and multiple uses of barley as well as its suitability for cropping in potentially and agriculturally limited regions like dry and saline lands in Iran, it is important for breeders to identify resist/tolerant genotypes and to improve barley yield for these areas. This study was conducted to assay some barley lines and to determine the effective factors affecting the crop's yield in stress and non-stress conditions. Genotypes were grown in two trials similar in design and agricultural practices except for irrigation or water regime. Results indicated that there were significant differences among traits within genotypes as regards different moisture regime conditions. Biomass and plant yield were in high correlation with stress (0.88) and non-stress (0.92) conditions. Stepwise regression employed to specify yield-affecting characters in either of the experiments excerpted four triats in normal and seven characteristics in stressed trial, which exhibited high and significant effects on yield. Because of the difference in number of these traits, it seems that there are several characteristics upon which yield is highly dependent if the cropfaced with water limitation during its growth period. These would be the traits which will determine the plant's final yield. Based on results of this study barley yield could be improved by selection for high grain weight, early maturity, higher stems with many spikes and weighty biomass genotypes in DROUGHT STRESS conditions. Also plants with shorter growing seasons, more and bigger spikes and higher biomass volumes yield more grain in normal conditions. Finally, selecting for high biomass, more spike number and weight in non-stress conditions could improve yield also in moderately stressed conditions.

Cites

CORRELATION AND PATH ANALYSIS OF GRAIN YIELD AND ITS COMPONENTS IN MAIZE UNDER DROUGHT STRESS CONDITIONS

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APA: Copy

FAZEL NAJAFABADI, M., BIHAMTA, M.R., NIKKHAH, H.R., & PEIGHAMBARI, S.A.. (2009). A STUDY OF BARLEY (HORDEUM VULGARE L.) YIELD DETERMINING TRAITS IN STRESS AND NON-STRESS CONDITIONS. IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), 40(1), 55-63. SID. https://sid.ir/paper/153484/en

Vancouver: Copy

FAZEL NAJAFABADI M., BIHAMTA M.R., NIKKHAH H.R., PEIGHAMBARI S.A.. A STUDY OF BARLEY (HORDEUM VULGARE L.) YIELD DETERMINING TRAITS IN STRESS AND NON-STRESS CONDITIONS. IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES)[Internet]. 2009;40(1):55-63. Available from: https://sid.ir/paper/153484/en

IEEE: Copy

M. FAZEL NAJAFABADI, M.R. BIHAMTA, H.R. NIKKHAH, and S.A. PEIGHAMBARI, “A STUDY OF BARLEY (HORDEUM VULGARE L.) YIELD DETERMINING TRAITS IN STRESS AND NON-STRESS CONDITIONS,” IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), vol. 40, no. 1, pp. 55–63, 2009, [Online]. Available: https://sid.ir/paper/153484/en

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