Kashmar and Khorshid upland cotton (Gossypium hisutum L.) compatible for dense planting pattern genotypes

In order to determine the Value of Cultivation and Use (VCU) of some cotton genotypes in Khorasan-Razavi province during 2014 and 2015, the seed cotton yield and its components and some related morphological and fibers quality traits of the genotypes and the control cultivars were compared based on randomized complete blocks design with four replications. Studied genotypes were: Kashmar, Khorshid and R7, and Golestan, Khordad, and Varamin commercial control cultivars were the control cultivars. The results showed that the weight of the boll was higher in the second year, and the seed cotton yield and earliness were higher in the first year. Also, R7 and Khorshid genotypes had the highest and lowest number of fruiting branches in the years of the trial, respectively. Khordad control cultivar and Khorshid genotype had the highest number of bolls (17 bolls) in both years of the trial. Kashmar genotype also had the highest crown diameter (the diameter of the first node of stem on the soil surface) and plant height (120 cm) in both years of the trial. Also, in both years, Khordad and Golestan control cultivars had the highest and the new Khorshid and Kashmer genotypes had the lowest number of vegetative branches in the first and second year. Kashmar genotype had higher gin turn out and fiber strength (39.96 % in the first year and 30.48 g/tex strength in the second year, respectively). Based on the results of this research, with due attention to close canopy structure of the and higher plant height and less number of vegetative branches of Khorshid and Kashmer genotypes, these genotypes are suitable and recommendable for cultivation in Razavi Khorasan province and similar areas.