Phenotypic Stability for Grain Yield in Certain Varieties of Sorghum

PALANISAMY; K. MEENAKSHI; A.K. FAZHULLA KHAN and C. SURENDRAN

doi:https://doi.org/10.29321/MAJ.10.A03128

Madras Agricultural Journal

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Phenotypic Stability for Grain Yield in Certain Varieties of Sorghum

Author: PALANISAMY, K. MEENAKSHI, A.K. FAZHULLA KHAN and C. SURENDRAN,

p-ISSN: 0024-9602, e-ISSN:2582-5321, Vol: 65, Issue: nov-nov,

DOI:https://doi.org/10.29321/MAJ.10.A03128

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Abstract

Genotype environment interactions for grain yield in sorghum wore studied by growing eleven genotypes in four different environments (2 years x 2 managements). Genotype-environment interactions were observed and significantly large portion of these interactions was accounted for the linear regression of the individual phenotypes on the environmental means. The non-linear component was not significant and its magnitude was considerably smaller than that of the linear component. Genotypes Swarna, 604, SC. 411. 168 and 269 were found to be more stable with the least deviation around the regres sion line (Sb). CS.3541 was found to be a promising variety under very favourable conditions.

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