ارزیابی پتانسیل عملکرد، هتروزیس و خواص کیفی هیبریدهای جدید پنبه

The objective of this study was to evaluate the potential of F1 hybrids by comparing them with parents and commercial variety for yield، yield components and fiber quality indices. The 20 genotypes were grown in 2012 in HashemAbad Cotton Research station, Gorgan- Iran. In this study ten hybrids and ten parental cotton genotypes (Gossypium hirsutum L.) were evaluated in a randomized complete block (RCB) design with three replications in 2012 at Hashemabad cotton Research station، Gorgan، Iran. Data were recorded on plant height، boll weight، seed cotton yield plot-1، earliness and fiber charactristics. Significant variations were observed among the genotypes for most of the parameters. The Mehr× BeliIzovar and T2×Bakhtegan hybrids performed well by having maximum heterosis for seed cotton yield، good maturity but lower fiber quality indices. The Sahel× Sindose and Sahel× B557 hybrids showed appreciable genetic potential for relatively yield production and the best fiber quality indices. Thus، the last hybrids could be introduce as new cotton hybrid varieties for golestan province and northern region of I.R.Iran.