RELATIONSHIP AMONG TRAITS OF OAT (AVENA SATIVA L.) CULTIVARS UNDER DROUGHT STRESS AND NON-STRESS CONDITIONS

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JAZAYERI NOUSHABADI M.R.; REZAEI A.M.

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Journal: Journal of Water and Soil Science Year:2007 | Volume:11 | Issue:1 (B) Page(s): 265-278

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Information Journal Paper

Title

RELATIONSHIP AMONG TRAITS OF OAT (AVENA SATIVA L.) CULTIVARS UNDER DROUGHT STRESS AND NON-STRESS CONDITIONS

Author(s)

JAZAYERI NOUSHABADI M.R. | REZAEI A.M. | Issue Writer Certificate

Keywords

YIELD COMPONENTSQ3

FACTOR ANALYSISQ3

PATH ANALYSISQ4

MOISTURE STRESSQ2

PHENOTYPIC AND GENETIC CORRELATIONSQ3

OATQ3

Abstract

This research was conducted at Research Farm of Isfahan University of Technology to examine the relations among phonologic, morphologic and physiologic traits and their effects on grain yield of 20 OAT (Avena sativa L.) genotypes. A randomized complete block design with three replications was used in each irrigation treatment (i.e. irrigation after 70±3, and 130±3 mm evaporation from class a pan). Grain yield had significant and positive correlations with harvest index and relative water content (RWC) in both irrigation treatments and with plant height at maturity in non-stress condition. Also, grain yield had significant and negative correlation with days to heading. Factor analyses resulted in three factors in each condition, which were named yield factor, phonologic factor and sink factor in both conditions.Based on stepwise regression, harvest index was the first character which entered the grain yield model in both conditions. At the next step, RWC and plant height entered the model, with harvest index explaining 66% and 64% of yield variation in stress and non-stress conditions, respectively. The results of PATH ANALYSIS in both conditions showed that harvest index had the highest positive direct effect on grain yield. The highest indirect negative effects through number of grain per panicle were obtained for the harvest index and panicle m-2 in stress and non-stress conditions, respectively.

Cites

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

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APA: Copy

JAZAYERI NOUSHABADI, M.R., & REZAEI, A.M.. (2007). RELATIONSHIP AMONG TRAITS OF OAT (AVENA SATIVA L.) CULTIVARS UNDER DROUGHT STRESS AND NON-STRESS CONDITIONS. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 11(1 (B)), 265-278. SID. https://sid.ir/paper/14894/en

Vancouver: Copy

JAZAYERI NOUSHABADI M.R., REZAEI A.M.. RELATIONSHIP AMONG TRAITS OF OAT (AVENA SATIVA L.) CULTIVARS UNDER DROUGHT STRESS AND NON-STRESS CONDITIONS. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2007;11(1 (B)):265-278. Available from: https://sid.ir/paper/14894/en

IEEE: Copy

M.R. JAZAYERI NOUSHABADI, and A.M. REZAEI, “RELATIONSHIP AMONG TRAITS OF OAT (AVENA SATIVA L.) CULTIVARS UNDER DROUGHT STRESS AND NON-STRESS CONDITIONS,” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 11, no. 1 (B), pp. 265–278, 2007, [Online]. Available: https://sid.ir/paper/14894/en

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