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1989年武汉出现了盛夏低温,受其干扰,多数湖北光敏核不育水稻(HPGHR) 育性发生了波动。本研究详尽地对武汉盛夏低温进行了统计分析,并对1947～1989年共43年的盛夏低温完整时间序列进行了最大熵谱分析。结果表明:盛夏低温是一种周期性发生的自然天气现象,类似于1989年的极强型盛夏低温约30年再现一次。本文就如何克服盛夏低温对HPGMR育性稳定性的干扰提出了相应的预见性对策。
In 1989, there was a midsummer low temperature in Wuhan, which was disturbed by it. Most of fertility of Photo-sensitive Genic Male Sterile Rice (HPGHR) in Hubei Province fluctuated. In this study, a detailed statistical analysis of the low temperature in midsummer of Wuhan was carried out, and the maximum entropy spectrum analysis of mid-summer low temperature complete time series from 1947 to 1989 was conducted in 43 years. The results show that the low temperature in midsummer is a cyclical phenomenon of natural weather, similar to the extremely strong midsummer temperature in 1989 about 30 years once again. In this paper, we put forward the corresponding predictable countermeasures to overcome the interference of mid-summer low temperature on the fertility stability of HPGMR.