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本文用Ｗ６１５４５、７００１５等一批灿粳核不育系为材料，通过分期播种、高海拔种植和人工控制光温处理试验，研究了光温条件对不同类型核不育系育性的影响。结果表明：以Ｗ６１５４５为代表的灿型核不育系的育性主要受温度影响，开花当时的低温和抽穗前的低温对育性同样有影响。以７００１Ｓ为代表的枝型核不育系的育性主要受光照影响，低温影响小。抽穗当时的低温对育性没有影响；抽穗前遇低温，１５～２０天后才有反映。生育前期的光温条件对育性有积累效应，同时抽穗但不同播期的不育株育性有差异。在岳西县高海拔长日低温条件下种植的核不育系不育期相对缩短，不育性降低，特别适用于从Ｆ２代中选光敏适宜温度范围宽的核不育株。
In this paper, a series of Cancun nuclear sterile lines such as W61545 and 70015 were used as material to study the effects of light and temperature on the fertility of different types of genic male sterile lines by sowing seeding, planting at high altitudes and artificial light and temperature treatments. The results showed that the fertility of Can type genic male sterile line, represented by W61545, was mainly affected by temperature. Low temperature at flowering and low temperature at heading also had the same effect on fertility. The fertility of the branched nuclear male sterile lines, represented by 7001S, was mainly affected by light and the effect of low temperature was small. Low temperature at the time of heading had no effect on fertility; low temperature was encountered before heading and only reflected after 15 to 20 days. The pre-emergence light and temperature conditions have a cumulative effect on fertility, while the heading date but different sowing date sterile fertility differences. In Yuexi County, long-term low-temperature high-altitude cultivation of sterile lines relative shortening of sterile, sterile reduced, especially suitable for selection from the F2 generation of photosynthesis of a wide range of temperature-sensitive nuclear sterile plants.