HERITABILITY OF SEED YIELD AND YIELD COMPONENTS IN RAPESEED (BRASSICA NAPUS) UNDER DROUGHT STRESS AND NORMAL CONDITIONS

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AMIRI OUGHAN H.; AHMADI M.R.; MOGHADAM MOHAMMAD; VALIZADEH M.; SHAKIBA MOHAMMAD REZA

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Journal: Seed and Plant Year:2002 | Volume:18 | Issue:2 Page(s): 179-199

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Title

HERITABILITY OF SEED YIELD AND YIELD COMPONENTS IN RAPESEED (BRASSICA NAPUS) UNDER DROUGHT STRESS AND NORMAL CONDITIONS

Author(s)

Keywords

RAPESEEDQ2

DROUGHT STRESSQ2

DIALLEL ANALYSISQ3

HERITABILITYQ2

ADDITIVE AND NO ADDITIVE EFFECTSQ2

Abstract

In order to estimate HERITABILITY of seed yield and yield components in RAPESEED diallel cross method was attempted. The 28 genotypes including 21 F2 progenies and parents were grown under two irrigation regimes (drought stress and normal) in split plot design with two replications. The results showed that variance of genotype was significant for yield and other traits, therefore there were high genetic diversit among genotypes. DIALLEL ANALYSIS showed both additive and non additive genes effect for yield in both conditions. The number of pods/plant in DROUGHT STRESS was similar to yield in the non- stress condition and it was considered by non-additive effects of genes. The data also showed heterosis for seed yield in both growing conditions Combined DIALLEL ANALYSIS indicated that additive variances was important for seeds/po and seed weight, whereas non-additive effect for branches/plant. Broad sense HERITABILITY was high for all traits in both conditions, whereas narrow sense HERITABILITY varied from low to high in both conditions. Among yield components, seed weight and seeds/po had high narrow sense HERITABILITY under DROUGHT STRESS. It was concluded that recurrent selection would be more effective in improving yield in both growing conditions.

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APA: Copy

AMIRI OUGHAN, H., AHMADI, M.R., MOGHADAM, MOHAMMAD, VALIZADEH, M., & SHAKIBA, MOHAMMAD REZA. (2002). HERITABILITY OF SEED YIELD AND YIELD COMPONENTS IN RAPESEED (BRASSICA NAPUS) UNDER DROUGHT STRESS AND NORMAL CONDITIONS. SEED AND PLANT, 18(2), 179-199. SID. https://sid.ir/paper/20415/en

Vancouver: Copy

AMIRI OUGHAN H., AHMADI M.R., MOGHADAM MOHAMMAD, VALIZADEH M., SHAKIBA MOHAMMAD REZA. HERITABILITY OF SEED YIELD AND YIELD COMPONENTS IN RAPESEED (BRASSICA NAPUS) UNDER DROUGHT STRESS AND NORMAL CONDITIONS. SEED AND PLANT[Internet]. 2002;18(2):179-199. Available from: https://sid.ir/paper/20415/en

IEEE: Copy

H. AMIRI OUGHAN, M.R. AHMADI, MOHAMMAD MOGHADAM, M. VALIZADEH, and MOHAMMAD REZA SHAKIBA, “HERITABILITY OF SEED YIELD AND YIELD COMPONENTS IN RAPESEED (BRASSICA NAPUS) UNDER DROUGHT STRESS AND NORMAL CONDITIONS,” SEED AND PLANT, vol. 18, no. 2, pp. 179–199, 2002, [Online]. Available: https://sid.ir/paper/20415/en

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