Genetic Variability, Character Association and Path Coefficient Analysis in Upland Cotton (Gossypium hirsutum L.) under Rainfed Condition

摘要

A biometrical investigation on 14 intra hirsutum hybrids of upland cotton with 14 yield attributing traits was carried out to study the genetic variability, character association and path analysis. Significant genotypic differences existed among the genotypes for all the characters studied. High PCV, GCV, herita-bility and genetic gain were recorded in boll weight (g), no. of seeds per boll, fiber fineness (mic), seed cotton yield (q/ha) and seed cotton yield per plant (g). Significant correlation between seed cotton yield and number of sympodia per plant and number of bolls per plant both at genotypic and phenotypic level, indicated scope for improving seed cotton yield through simultaneous selection. Path analysis further supported and high lighted the importance of number of bolls per plant and sympodia per plant in yield improvement.