STUDY OF GRAIN YIELD STABILITY OF BARLEY (HORDEUM VULGARE L.) PROMISING LINES IN COLD REGIONS OF IRAN USING REGRESSION METHODS

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AKBARPOUR O.A.; DEHGHANI H.; SORKHI LALEHLOO B.

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Journal: Iranian Journal of Crop Sciences Year:2012 | Volume:14 | Issue:2 (54) Page(s): 155-170

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Title

STUDY OF GRAIN YIELD STABILITY OF BARLEY (HORDEUM VULGARE L.) PROMISING LINES IN COLD REGIONS OF IRAN USING REGRESSION METHODS

Author(s)

AKBARPOUR O.A. | DEHGHANI H. | SORKHI LALEHLOO B. | Issue Writer Certificate

Keywords

BARLEYQ2

COLD CLIMATEQ2

GENOTYPE×ENVIRONMENT INTERACTION AND YIELD STABILITYQ2

Abstract

Study of grain yield stability in different environmental conditions is very important in plant breeding programs. To study grain yield stability of 18 BARLEY promising lines with two check cultivars (Bahman and MAKOUEE//ZARJOW/80-5151) in six - field stations (Hamedan, Miandoab, Karaj, Arak, Jolgheh Rokh and Mashhad) in cold agro-climatic zone of Iran for two cropping cycle (2007-2009). However, in Tabriz and Ardabil field stations the genotypes were only evaluated in 2007-2008 cropping cycle. The experimental design used in all locations and cropping cycles was randomized complete block design with three replications.Combined analysis of variance performed assuming environment (years and locations) as random and genotypes as fixed factors. Results showed that there was no significant difference among the genotypes. However, the effect of environments and genotype×environment interaction were significant (P<0.01). The genotype No. 16 with regression coefficient near to 1 and the lowest standard deviation from regression line determined as high yielding with high yield stability. Genotypes No. 18 and 11 with the lowest standard deviation from regression line and minimum regression coefficients using Eberhart and Russell method was determined as stable genotypes for unfavorable environment. Using Tai method, regression coefficients of BARLEY genotypes No. 16, 18 and 11 showed that these genotypes were of high grain stability in comparison with other genotypes. In conclusion, comparison of the three regression methods showed that Tai method is the complementary method for other regression methods considering the biometrical aspects. Using three regression methods, the genotype No. 16 was determined as high yielding with high yield stability among all of the genotypes in all environments.The genotype No. 19 is recommended for high yielding environments and the genotypes No. 18 and 11 can be suggested for unfavorable conditions.

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APA: Copy

AKBARPOUR, O.A., DEHGHANI, H., & SORKHI LALEHLOO, B.. (2012). STUDY OF GRAIN YIELD STABILITY OF BARLEY (HORDEUM VULGARE L.) PROMISING LINES IN COLD REGIONS OF IRAN USING REGRESSION METHODS. IRANIAN JOURNAL OF CROP SCIENCES, 14(2 (54)), 155-170. SID. https://sid.ir/paper/57289/en

Vancouver: Copy

AKBARPOUR O.A., DEHGHANI H., SORKHI LALEHLOO B.. STUDY OF GRAIN YIELD STABILITY OF BARLEY (HORDEUM VULGARE L.) PROMISING LINES IN COLD REGIONS OF IRAN USING REGRESSION METHODS. IRANIAN JOURNAL OF CROP SCIENCES[Internet]. 2012;14(2 (54)):155-170. Available from: https://sid.ir/paper/57289/en

IEEE: Copy

O.A. AKBARPOUR, H. DEHGHANI, and B. SORKHI LALEHLOO, “STUDY OF GRAIN YIELD STABILITY OF BARLEY (HORDEUM VULGARE L.) PROMISING LINES IN COLD REGIONS OF IRAN USING REGRESSION METHODS,” IRANIAN JOURNAL OF CROP SCIENCES, vol. 14, no. 2 (54), pp. 155–170, 2012, [Online]. Available: https://sid.ir/paper/57289/en

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