Department of Genetics and Plant Breeding, Agricultural College, Aswaraopet, 507 301, Bhadradri Kothagudem, Telangana, India
*Corresponding Author: K.G.K. Murthy, Department of Genetics and Plant Breeding, Agricultural College, Aswaraopet, 507 301, Bhadradri Kothagudem, Telangana, India, E-Mail: murthygenetics1@gmail.com
Online published on 16 February, 2023.
An experiment was conducted in three different locations using 42 crosses derived by crossing six lines and seven testers in Line x Tester design to identify stable cotton genotypes amenable to a high-density planting system. The heterozygotes were found more stable due to individual buffering capacities over homozygotes. Strong association between heterobeltiosis and specific combining ability (sca)was shown by the hybrids MC 4-3 x MC 3-2, MC 4-3 x MC 22-2, MC 4-3 x NH 630, MC 5-1 x MC 11-1 and MC 5-1 x NH 630 while MC 17-6 x MC 17-1, MC 4-3 x MC 3-2, MC 16-3 x MC 17-2 had out yielded homozygous parents in poor environments and exhibited heterosis and sca effects in desirable direction for short compact characters.
