Screening of Cotton Advanced Lines across Various Years for Fibre and Yield Traits

Abstract

Cotton is a cash crop providing shelter and fiber around the globe. The superiority of the cotton crop lies in its fiber quality and yield performance. The present research was conducted in three consecutive years 2012, 2013, and 2014, respectively, to investigate the performance of various advanced cotton genotypes compared to local fiber and yield strength varieties. The experiment used a Randomized Complete Block Design with three replicates. Fiber quality and yield parameters were studied in this experiment.  Significantly various years showed variability in the cotton advanced lines and performed very well in these consecutive years. Plant population and yield Kg/ha^-1 exhibited significant results with p<0.01 and p< 0.05 probability level, while staple length and GOT% revealed non-significant. During 2012, TH-55/09 and TH-105/09 exhibited the maximum plant population compared to check varieties such as SINDH-1 and CRIS-134. However, TH-17/09 was observed to have the maximum plant population during 2013. During 2012 and 2014, GOT% exhibited greater in the genotype TH-17/09 (36.50% and 36.20%), respectively as compared to check varieties (SINDH-1 and CRIS-134). Similarly, the staple length was maximum in 2012, 2013, and 2014 in the genotype TH-17/09 (29.00, 29.30 and 29.00), respectively. Yield Kg/ha^-1 observed to have variation in three years, TH-17/09 (4500) depicted higher yield as compared to other genotypes. However, TH-19/09, TH-55/09, and TH-55/09 proved to have greater yields also during 2012. Consequently, in the year 2013, the genotype TH-17/09 proved to have a higher yield of 5358.0 Kg/ha^-1. Almost all the genotypes performed very well though the yield Kg/ha^-1 exhibited greater during 2013 than in other years. Correlation between yield and fiber characters revealed to have a significant positive relationship with each other. Hence, it is concluded that among the three consecutive years, the genotypes TH-17/09 performed best among the three years for fiber and quality traits.