Correlation and Path Coefficient Analysis in Upland Cotton (Gossypium hirsutum L.)

Abstract

An experiment was conducted on correlation and path coefficient analysis for yield and yield contributing characters in upland cotton with 63 ge notypes of cotton for seventeen characters at Regional Agricultural Research Station, Lam Farm, G untur, Andhra Pradesh. The character association analysis revealed that number of monopo dia plant -1 , number of bolls plant -1 , boll weight, relative chlorophyll content, 2.5% span length, bun dle strength and lint yield plant -1 were found to have significant positive association with seed cot ton yield plant -1 at both phenotypic and genotypic levels. The path analysis indicated that the number of bolls plant -1 , boll weight (g), seed index, 2.5% span length (mm) and lint yield plant -1 (g) showed direct positive effects and significant positive correlation with seed cotton yield plant -1 (g) revealing that due weightage should be given in selection process with more number of bolls plan t -1 and more boll weight and there should be economic balance among these traits to get higher scotton yield plant -1 .