棉花种子种用品质的优劣,对于同一品种来讲,与收获、轧花、脱绒、贮藏等诸因素有关。各个不同收花时期留种的种子种用品质到底差别有多大?适合留种的收花期时间范围如何?弄清这些问题,就可为确定适宜的收获留种时期提供科学依据,以利于为大面积生产提供种用品质好的种子。因此,我对武汉市郊推广种植的鄂沙28棉花良种,以不同收获时期的种子进行种用品质分析,现将分析结果作一浅述。 The quality of cotton seeds for planting, for the same species is concerned, and harvest, ginning, velvet, storage and other factors. How to determine the appropriate time for the seeds to stay in the harvesting period in order to benefit the large Area production provides seeds of good quality. Therefore, I planted the cultivars of Eza 28 cotton in the suburbs of Wuhan City and used the seed quality analysis of the seeds at different harvesting times. I will give a brief account of the analysis results.