PHYSIOLOGICAL AND PHENOTYPIC CHARACTERIZATION OF COTTON IN HIGH PLANT DENSITIES UNDER WATER STRESS

Abstract

The study was conducted to examine the effect of high density planting system (HDPS) and moisture regimes on certain varieties of cotton in tropical monsoon based Southern Telangana Agro-climatic Zone. This study was conducted with an objective to identify the suitable spacings and genotypes for cultivating under HDPS. In the experiment, growth attributes such as plant height, crop growth rate (CGR) and relative growth rate (RGR) were estimated at critical stages of growth and it was found that the plants under wider spacing of 75 x10 cm2 spacing led to better plant height (48.1 cm) and CGR (0.58 g m-2 day-1) at 60-90 DAS. Among the genotypes of cotton studied, WGCV-48 exhibited maximum plant height (52.8 cm), CGR (0.65 g m-2 day-1) and RGR(0.034 g g-1 day-1).