Effect of Pickings on Germination Percentage and Fiber Quality Traits in Gossypium Hirsutum L

摘要

The present investigations were designed to determine the impact of picking dates on seed germination, 100 seed weight and various fiber parameters. Two genotypes FH-113 and FH-114 were evaluated under early and normal sowing. Nine and six pickings were taken under early and normal conditions, respectively. The results revealed significant variation in both the years for fiber traits but for seed germination, the results were non-significant and for seed weight remained significant under both sowing times, respectively. For picking time the estimates were significant under both sowing times thus exhibiting the major role of picking time in this experiment. For germination percentage, the results were variable for both the genotypes. For genotype FH-113, germination remained above 60% during 1st pick and for 5th, 6th, and 7th pick, the germination rates were higher and nearing almost 70%. For 2nd genotype, the germination remained below 50% from pick-1 to pick-4 and above 50% in pick 5 and 8 but for all other pickings the values remained in the range 45-50%. Under normal sowing both genotypes exhibited germination percentage near 60% at 1st pick but for 2nd and 3rd pick, the germination rate remained between 45% and 50%. Regarding correlation studies among the studied traits germination % had positive and highly significant correlation with 100 seed weight under both sowing times. Fiber fineness and strength had strong and highly significant correlation with fiber maturity under both conditions. The results from this study revealed that pickings during favorable conditions produce better quality and germination.