为了适应农业高速度发展的需要,既要勇于创新,努力培育新品种,又要立足当前,狠抓提纯复壮,充分发挥现有良种的增产作用。因此,建立健全棉花良种繁育体系,大搞提纯复壮,这既是棉种工作的当务之急,又是发展棉花生产的一项重要的基本建设。为了进一步提高棉花提纯复壮工作的成效,想讨论下面几个问题。 In order to meet the needs of the high-speed development of agriculture, we must not only bravely innovate, strive to cultivate new varieties, but also base ourselves on the current situation, pay close attention to purification and rejuvenation, and give full play to the stimulation effect of existing seed production. Therefore, establishing and perfecting cotton seed breeding system and vigorously promoting purification and rejuvenation are both an urgent task for cotton seed production and an important capital construction for developing cotton production. In order to further improve the effectiveness of cotton purification and rejuvenation, would like to discuss the following questions.