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棉花杂种优势具有大幅度提高产量的潜力,但在利用和推广方面还有一定困难。本文就我国棉花杂种优势利用研究中存在的问题,提出一些认识和剖析:限制利用推广的关键是尚未测试出具有成倍提高产量潜力的强优组合以及制种技术尚未有重大突破。应广泛利用世界各国的品种资源;加强指示性状的利用及蜜蜂传粉技术的研究。为洞 A 寻找保持系,应在细胞质是异质的品种资源中去探索;在现阶段二系法不育体制,应肯定它的可利用价值。
Cotton hybrids have the potential to significantly increase yields, but there are still some difficulties in the use and promotion. This article put forward some understanding and analysis on the existing problems in the utilization of cotton heterosis in our country. The key to limit the use and promotion is that there has not yet been a breakthrough in strong combination and seed production technology that has not been tested to have doubled the potential of yield. Should make extensive use of varieties of resources in all countries in the world; to strengthen the use of indications and bees pollination technology research. To find a maintainer for Cave A, we should explore it in the cytoplasm which is a heterogeneous variety resource. At the present stage, the two system sterile system should confirm its available value.