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光敏核不育水稻（ＰＧＭＲ）营养生长期所遇光温条件，对后期育性转换的条件有一定影响。前期高温或短日条件，有使育性转换下限临界温度增高的作用；前期低温或长日条件，有使育性转换下限临界温度降低的影响。就此，作者讨论了各地所测的下限临界温度的相互参考价值。
Photoperiod-temperature conditions of PGMS vegetative growth stage had certain influence on the conditions of later fertility transformation. Pre-high temperature or short-day conditions, the fertility conversion lower limit of the critical temperature increases the role of pre-low temperature or long day conditions, so that the fertility conversion lower limit of the impact of the lower critical temperature. In this connection, the authors discussed the cross-reference value of the lower critical temperature measured everywhere.