Genotype × Environment Interaction for Genotype Cotton Upland Gossypium hirsutum L.

Abstract

A field experiment was conducted in the summer of 2022 at the Agricultural Research Station / Daquq site, using six upland cotton genotypes (Lachata, Coker 310, pack coat, Spiro, Montana, and IK259), three levels of potassium sulfate fertilizer (0, 100, and 200) kg.h-1, and two distances between the lines (40 and 60) cm, to study growth, yield, its components, and qualitative traits. We conclude that the genotype Spiro was stable in terms of the number of fruiting branches, while the genotype Coker 310 was more stable in terms of plant height and span length at 2.5%, and the genotypes IK259 were more stable in terms of the number of bolls per plant, the index lint, and the index of uniformity, and the two genotypes Lachata and Coker 310 in terms of boll weight. Cocker 310 and Spiro genotypes were more stable in seed cotton yield per plant and uniformity index, Spiro and Montana genotypes in ginning outturn, and Lachata and Spiro genotypes in seed index, while Lachata genotype was more stable in staple length at 50% and staple strength.