Exploitation of heterosis using L times; T analysis in late kharif sesame (Sesamum indicum L.)

Abstract

The investigation was undertaken to estimate heterosis of 14 characters in 36 hybrids of sesame obtained by crossing nine lines and four testers in line × tester mating design was performed at Instructional Farm, Department of Agronomy, College of Agriculture, Junagadh Agricultural University, Junagadh. The analysis of variance revealed highly significant differences among the mean square due to genotypes, parents and hybrids for all the traits studied indicating a sufficient variability present in the material used. The three crosses viz., IC 43236 × AT 467, Zira 1 × G. Til-4 and JR 22 × AT 467 appeared to be most superior and recorded 33.83, 32.71 and 29.46 percent higher yields, respectively over standard check. Two crosses viz., Zira 1 × G. Til-4 and JR 22 × AT 467 also exhibited higher heterotic response and sca effects in a desirable direction for yield attributing traits.