采用人工摸拟气候条件,并结合不同海拔高度探讨不育系的育性转化及其育性稳定性等,研究两用核不育系的鉴定方法。结果表明,将人工摸拟气候条件与不同生态条件有机结合起来,能有效地鉴定两用核不育系对温度的敏感时期、程度、育性转化期、稳定性以及材科的繁殖能力等,可为“两系”水稻杂种优势利用提供可靠的理论依据。 The artificial fertilization climate conditions were used to study the fertility transformation of sterile lines and their fertility stability at different altitudes to study the identification methods of dual-purpose nuclear sterile lines. The results showed that the combination of artificial mimicking climatic conditions and different ecological conditions could effectively identify the temperature sensitive period, degree, fertility transition period, stability and reproductive ability of the two genic male sterile lines, It can provide reliable theoretical basis for heterosis utilization of “two lines” rice.