The comparison between the yield and yield components of cotton varieties in Varamin region

In order to study and compare The yield and yield components of cotton varities in Varamin region this farm experiment was carried out in the framework of a randomized model with four repetitions by the Varamin catton investigation were: Varamin commercial variety, Pak variety as well as Sindoz, Asj2, Siokra and Chirpan varieties. The resulth of this experiment showed that there were some meaningful differences between the weights of 100 grains, the percent of the measure and the weight of cotton pods: Chipran variety with the average of 18/12 grams showed the most weighty of the 100 grains weight, Siokra with the 40/02 percent had the most measure and the Varamin variety with the average of 6, 089 carried the most weight of the single cotton pods. The other results in all treatment indicated that there were no significant differences between cotton like yield, early percent, the number of cotton pods of each crucible and the number of grain in each cotton pod. The regression analysis also indicated that the cotton like yield of all treatments did have meaningful relationship with early percent, but the height of crucible had no significant correlation with cotton pod’s weights. According to the above-mentioned cases, the morphological specifications and better quality the Varamin variety was recommended as the first, followed by Asj2 and 818-312 as the most profitable for cultivation of cotton varities in Varamin region.