In order to study the yield and correlation between traits of cotton varieties in Moghan region according to their cultivation date, an experiment was performed on 10 varieties of cotton in a randomized complete block design with three replications in 2013-2014 planting
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In order to study the yield and correlation between traits of cotton varieties in Moghan region according to their cultivation date, an experiment was performed on 10 varieties of cotton in a randomized complete block design with three replications in 2013-2014 planting year in the farm of Ardebil Research Center for Agriculture and Natural Resources (Moghan). In this experiment, different characteristics of the two spring planting (15 May) and summer planting (21 June) survey and data obtained were statistically analyzed. The results from compound data analysis revealed that, all the traits under study except plant height, as affected by date planting. The interaction effect of planting date × variety was significant for all traits except plant height and second term harvesting. Maximum of first and second term harvesting were obtained jointly at Mehr, Avangard, Sp-731, Sp-732, No.210×spring planting and Mehr, Avangard, Sp-731, Sp-732 × summer planting, respectively. Minimum of these tow traits were obtained at Crema, Sp-731, No.200, No. 228, JR-3, No.210, No.001× summer planting. Maximum of total yield, Balls number and prematurity percentage, were observed in Sp-732, No.001, Mehr, Sp-731, No.001×spring planting, jointly. Also minimum of these traits were obtained at No.210, No.200, Sp-731× summer planting, respectively. Maximum and minimum of plant height were observed in No.001 × spring planting and Sp-732 × summer planting, respectively. Among ten cotton varieties, maximum of yield belonged to Sp-731, Avangard and Sp-732, jointly.
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