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在省内３个不同生态地区，对７个两用核不育系的分期播种的育性观察试验表明，核不育系不育期的长短变化规律是随海拔增高由长变短；可育期内繁种结实性是随海拔增高由低到高。因此，可采取低海拔地区制种、高海拔地区繁种的方法利用水稻两用核不育系。同时，提出了参试不育系在贵州省的适用范围和繁制种措施。
In three different ecotopes in the province, the fertilization observation on staged sowing of seven dual-purpose genic male sterile lines showed that the variation of the length of the male sterile line of sterile genus increased from long to short as the altitude increased; fertile The variety of seed multiplication during the period is from low to high with altitude increasing. Therefore, it is feasible to use the dual-use nuclear sterile line to seed at low altitude and breed at high altitude. At the same time, put forward the test sterile line in Guizhou Province, the scope of application and breeding measures.