CORRELATION AND PATH COEFFICIENT ANALYSIS IN UPLAND COTTON (Gossypium hirsutum L.)

Abstract

Correlation and path coefficient analysis for yield and yield contributing characters in upland cotton were carried with 55 genotypes (45 F1s and 10 parents) of cotton for seventeen characters in three locations i.e. Regional Agricultural Research Station, Lam, Guntur, Agricultural Research Station, Jangamaheswarapuram and Agricultural Research Station, Darsi, Andhra Pradesh. Analysis of pooled data from three locations showed the character association. The plant height, number of sympodia plant-1, number of bolls plant-1, boll weight, seed index, lint index, micronaire value (10-6g/inch) and lint yield plant-1 were found to have significant positive association with seed cotton 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 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 plant-1 and more boll weight and there should be economic balance among these traits to get higher seed cotton yield plant-1