Vol. 11, Issue 9 (2022)

Author(s):
Himanshi Saraswat, Sonika, Omender Sangwan and Ajay Verma

Abstract:
Fifty elite lines of upland cotton were evaluated at the Farm Research Area of Cotton Section, Department of Genetics & Plant Breeding, CCS Haryana Agricultural University, Hisar during 2021. Gossypol content (%) ranged from 0.22 to 0.53. Marginal variation from 0.17 to 0.40 exhibited by Phenol content (%) along with less changes in Protein content (%) as 0.62 to 0.85 only. Tannin content (%) expressed changes from 0.26 to 0.98 while Sugar content (%) deviated from 0.28 to 0.98 in this set of cotton genotypes. Gossypol indicated high heritability with genetic advance % mean the presence of additive gene action while Protein content expressed high heritability with moderate genetic advance. High heritability coupled with high genetic advance, indicating the preponderance of additive gene action for sugar contents. Principal components analysis observed significant of first two components as accounted for 39% variation among the traits with 21.1%, 17.8% of respective contributions. Phenol, sugar, Tannin placed together with seed index in graphical representations. Multivariate hierarchical clustering as per Ward’s method seen Seed expressed as point of dissection of quality traits as Gossypol, Protein, Phenol, Sugar, Tannin in one while other comprises of weight of cotton seed, cotton seed yield.