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陆地棉是世界上栽培面积最大的棉种,具有丰产、优质、抗病虫、适应性广等多种优良特性。在复杂的气候条件下,由于自然选择和人工选择,形成丰富多采的种质资源,是育种工作雄厚的物质基础。因此,进行广泛搜集,深入研究,对育种、引种、试验、推广、科学研究都具有重要意义。 1973—1978年我所从25个国家引进陆地棉品种142个。其中美国68个,墨西哥12个,尼泊尔10个,巴基斯坦9个,乌干达、印度各6个,坦桑尼亚5个,土耳其、乍得各4
Upland cotton is the largest cultivated cotton in the world, with many excellent features such as high yield, good quality, resistance to diseases and pests, wide adaptability and so on. Under complicated climatic conditions, due to natural selection and artificial selection, the formation of rich and varied germplasm resources is a solid material foundation for breeding work. Therefore, conducting extensive research and further research is of great significance to breeding, introduction, experiment, popularization and scientific research. From 1973 to 1978, I imported 142 varieties of upland cotton from 25 countries. 68 of them in the United States, 12 in Mexico, 10 in Nepal, 9 in Pakistan, 6 in Uganda and India, 5 in Tanzania, 4 in Turkey and 4 in Chad