Selection indices for yield in rabi sorghum (Sorghum bicolor L. Moench) genotypes

  • C.V.Sameer Kumar, Ch.Sreelakshmi and D.Shivani
Keywords: Sorghum, selection indices, yield.

Abstract

Various selection indices were constructed for yield in rabi sorghum genotypes using 45 genotypes. Among various traits,
plant height, 1000-seed weight and fodder yield had significant and positive genotypic correlation with the seed yield per
plant. Among the selection indices, the expected genetic gain and relative efficiency had higher side whenever correlated
traits are present together. Further increase in the genetic gain and efficiency with the addition of more traits are negligible.
Hence the selection index based on seed yield, plant height, 1000-seed weight and fodder yield may be considered as
appropriate selection index for seed yield improvement in rabi sorghum genotypes.
Published
31-12-2012
Section
Research Note