Electronic Journal of Plant Breeding
Open Access
SCOPUS
  • Year: 2021
  • Volume: 12
  • Issue: 4

Genetic diversity analysis in American cotton (Gossypium hirsutum L.) genotypes

Regional Agricultural Research Station, Acharya N.G. Ranga Agricultural University, Lam, Guntur-522034

*E-Mail: tej.satish1@gmail.com

Online Published on 02 February, 2022.

Abstract

Genetic divergence studies were taken up using 55 genotypes for yield and its contributing traits using D2 statistics in upland cotton. Based on D2 values, the grouping was done and the 55 genotypes were placed in six groups and six principal components explaining 91.8 per cent variability. Results of the multivariate analysis indicated that maximum divergence among genotypes L1785, L1687, L1748, L1780, L1783, and L 604 was detected indicating that the crosses between these genotypes will produce highly heterotic hybrids.

Keywords

Genetic divergence, D2statistic, Principal Component Analysis, American Cotton