Studies on heterosis in cotton (Gossypium hirsutum L.) for yield and fibre quality traits

Abstract

The present study was undertaken to assess the extent of heterosis for seed cotton yield, yield traits and fibre quality traits in 40 intra-hirsutum hybrids of cotton developed by crossing 8 lines with 5 testers in line x tester fashion during kharif, 2016-17 at Regional Agricultural Research Station, Lam Farm, Guntur. The standard heterosis was calculated over check hybrid, LAHH 5. The hybrid combinations viz., LH 2220 × GTHV 13/32, L 1384 x HYPS 5152 and L 1060 × GTHV 13/32, were found to be promising based on per se performance and significant standard heterosis for seed cotton yield per plant, important yield contributing traits including fibre quality traits in terms of standard heterosis. These genotypes may be evaluated over locations for further confirmation of their superiority before they are being exploited commercially.