我县棉花原种场自1973年开始,改革了棉花原种繁育技术。改革后把主要精力放在田间考察上;从优系材料中选择大量单株,多中选优,优中选优,分系繁殖和混系繁殖相结合。这就是“万千百十一”的繁育程序,即“预选万株,种植千行,分繁百系,评比十个原种,挑 My county cotton seed field since 1973, the reform of cotton breeding technology. After the reform, the main energy was put on the field investigation; a large number of single plants were selected from the materials of the superior system, the multiple ones were selected, the ones with the best ones were selected, and the others were combined with the mixed reproduction. This is the “one thousand one hundred and eleven” breeding program, that is, "pre-selected million strains, planting thousands of lines, divided into hundreds of branches, the competition of ten species, pick