Studies on growth, phenology and productivity of different cotton genotypes

A field experiment was conducted to study the phenology and yield potential of different plant types of cotton genotypes under rainfed conditions. Among the robust types RAHB-61 was early to 50% square formation, 50% flowering, 50% boll opening and maturity. In compact types RACH-11 was early to 50% square formation, 50% flowering, 50% boll opening and maturity. G. herbaceum genotypes took more number of days for 50% square formation, 50% flowering, 50% boll opening and maturity. Robust genotypes produced higher seed cotton yield, TDM and yield components followed by compacts and G. herbaceum genotypes. The results revealed that compact genotypes are early in days to 50% boll opening and days to maturity as compared to robust and G. herbaceum genotypes.