Characterization of Yield and Phenology of Rainfed Cotton under High Plant Densities and Moisture Regimes

Abstract:

Abstract

Spacing and moisture availability are considered as some of the critical management components in any cropping system to bring out a rewarding yield. This present study examines the effect of high plant densities and moisture regime on certain varieties of cotton in tropical monsoon-based southern Telangana agro-climatic zone. Six genotypes viz., are selected and studied their performance in high-density spacings viz., ADB- 39, H- 4492859, NDLH- 1938, Anjali, Suraj and WGLV- 48 were grown under three high density planting systems viz., 75×10 cm, 60×10 cm and 45×10 cm to study the relation between moisture stress and phenology and yield of cotton. Among the treatments in the study, WGCV-48 recorded the earliest square initiation (41.3 days), flower initiation (66.1 days) and boll bursting (92.6 days). And the combination of WGCV-48 and spacing of 45×10 cm recorded the maximum of lint yield (737 Kg Ha-1) and 100 seed index (8.7g).