Influence of Sowing Dates on Cotton Growth (Gossypium hirsutum), Yield and Fiber Quality
Iram Sharif1*, Amna Nazir1, Eram Shahzadi2, Shahid Munir Chohan3 and Ghulam Sarwar4
Cotton plays important role in Pakistan’s economy. It faces various environmental conditions which restricts its growth and production. The study was carried out at Cotton Research Station, Faisalabad, during the year 2018-19. The objective of the research was to evaluate the sowing date effects on growth, yield parameters and fiber quality of cotton and genotypic assessment in two sowing dates. The set of six genotypes was sown in two different dates viz., 10th April and 10th May in split plot design with three replications by allotting sowing dates in main plot and varieties in sub-plots. The results indicated that crop sown on 10th April produced more seed cotton yield (2881.1 kg ha-1) than sown on 10th May with (2212.9 kg ha-1). Comparing the average varietal performance in both sowing dates, FH-6071 produced maximum yield 2989.39 kg ha-1 while minimum yield 2103.5 kg ha-1 was exhibited by FH-152. Boll retention % was maximum in genotype FH-490. With respect to fiber quality fiber length and strength were not affected significantly due to sowing dates effects. In addition to yield, fiber quality of FH-6071was better in both sowing dates with average fiber length, strength and micronaire values 27.3 mm, 30.87 g/tex and 4.5 µg/inch respectively. The results showed that late planting produced less yield due to shorter growing period. Among fiber quality parameters, length and strength were not affected significantly while micronaire was affected significantly.