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80年代以来,棉花育种目标的重点已转向综合经济性状的同步改良提高和选育特殊优良性状,以适应不同的生产条件对棉产品的不同要求。现代棉花品种的经济性状已达到较高的水平,进一步改良提高的难度更大,特殊优良性状的选育更有待新种质资源的开发利用。在选育棉花新品种的同时,为了大幅度提高棉花产量,改进纤维品质和增强抗性,也有人把希望寄托于棉花杂种优势
Since the 1980s, the focus of the cotton breeding goal has shifted to the simultaneous improvement of comprehensive economic traits and the selection of special fine traits to meet the different requirements of cotton products under different production conditions. The economic traits of modern cotton varieties have reached a higher level, the further improvement and improvement is more difficult, and breeding of special fine traits needs further development and utilization of new germplasm resources. In the selection of new varieties of cotton at the same time, in order to significantly increase cotton yield, improve fiber quality and enhance resistance, some people pin their hopes on cotton heterosis