Studies on management practices for summer irrigated cotton genotypes

摘要

Field experiment was carried out during 1995-97 to evaluate the response of pre-release cotton genotypes to spacing and fertilizer levels under summer irrigated conditions. The genotypes (TSH 188 and TSH 192) were tested under three fertilizer levels(40:20:20; 60:30:30 and 80:40:40 kg NPK ha~(-1)) and three spacings (60 X 15 cm; 60 X 30 cm and 60 X 45 cm). The experimental field was medium in available N and P and high in available K with a pH of 8.1. The experiment was carried out in split plot design with two replications. The results of the three years were pooled and presented. The growth characters (plant height and monopodia), yield attributing characters (sympodia, number of bolls per plant and boll weight), seed cotton yield and quality characters (seed index, lint index and ginning percentage) were not influenced by genotypes studied indicating that both the genotypes performed equally good.