COMPARISON OF SELECTION INDICES FOR YIELD AND RELATED TRAITS OF BARLEY UNDER NITROGEN STRESS AND NON-STRESS CONDITIONS

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OMRANI S.N.; REZAEI ABD ALMAJID; ARZANI A.

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Journal: Journal of Water and Soil Science Year:2008 | Volume:11 | Issue:42 (A) Page(s): 183-195

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Title

COMPARISON OF SELECTION INDICES FOR YIELD AND RELATED TRAITS OF BARLEY UNDER NITROGEN STRESS AND NON-STRESS CONDITIONS

Author(s)

OMRANI S.N. | REZAEI ABD ALMAJID | ARZANI A. | Issue Writer Certificate

Keywords

DIRECT AND INDIRECT SELECTIONQ3

NITROGEN STRESSQ3

BARLEYQ3

SELECTION INDICESQ3

Abstract

The most desirable approach to improve characteristics such as yield with polygenic inheritance and genotype × environment interaction, is simultaneous selection using selection index based on related traits. This study was conducted Research Farm of Isfahan University of Technology, to compare SELECTION INDICES for BARLEY yield improvement under NITROGEN STRESS and non stress conditions, using 49 F13 recombinant inbred lines derived from a cross between Azumamugi and Kanto Nakate Gold. A split plot design with randomized complete block layout in three replications was used. In non-stress condition 100 kg nitrogen per hectare as urea was used at early reproductive growth, stem elongation and grain filling stages. In stress condition, 50 kg nitrogen per hectare was only used at early vegetative growth stage. Smith-Hazel and Pesek-Baker indices based on 4 traits (days to heading, harvest index, growth rate and nitrogen harvest index) and also direct and correlated response of these traits were calculated. The result of response to selection and correlated response indicated that the selection based on higher harvest index and nitrogen harvest index under both conditions screens high yielding lines. Harvest index had high weight in both indices under stress and non stress conditions. Under both conditions and for Smith-Hazel and Pesek-Baker indices, growth rate had negative correlation coefficients. Therefore, the selection based on these indices, separates lines with lower growth rate. In this study, Smith-Hazel index had higher efficiency.

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APA: Copy

OMRANI, S.N., REZAEI, ABD ALMAJID, & ARZANI, A.. (2008). COMPARISON OF SELECTION INDICES FOR YIELD AND RELATED TRAITS OF BARLEY UNDER NITROGEN STRESS AND NON-STRESS CONDITIONS. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 11(42 (A)), 183-195. SID. https://sid.ir/paper/14990/en

Vancouver: Copy

OMRANI S.N., REZAEI ABD ALMAJID, ARZANI A.. COMPARISON OF SELECTION INDICES FOR YIELD AND RELATED TRAITS OF BARLEY UNDER NITROGEN STRESS AND NON-STRESS CONDITIONS. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2008;11(42 (A)):183-195. Available from: https://sid.ir/paper/14990/en

IEEE: Copy

S.N. OMRANI, ABD ALMAJID REZAEI, and A. ARZANI, “COMPARISON OF SELECTION INDICES FOR YIELD AND RELATED TRAITS OF BARLEY UNDER NITROGEN STRESS AND NON-STRESS CONDITIONS,” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 11, no. 42 (A), pp. 183–195, 2008, [Online]. Available: https://sid.ir/paper/14990/en

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