摘要
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。
Lower temperature in mid-summer occuered in 1989 in wuhan. The fertility of mostHubei photoperiod sensitive genic male-sterile rice(HPGMR)became unstable. A syste-maticly satistic analysis of the materials of lower temperature in mid-summer in wuhanwas carried out and the maximum entropy spectrum periodical analysis was adopted todeal with the meteorological data obtained from 43 years(1947~1989)about lowertemperature in mid-summer under continuously time sequence. The result showed thatlower temperature was a kind of natural phenomenon occuered periodicaly. The extrem-ely one occuered in 1989 is likely to appear once every 30 years. This paper providedsome relevant foreseen ways to solve the problem of the influence of lower temperaturein mid-summer on the fertility stability of HPGMR.
出处
《华中农业大学学报》
CAS
CSCD
北大核心
1990年第4期343-347,共5页
Journal of Huazhong Agricultural University
基金
国家自然科学基金资助课题
关键词
水稻
光敏核不育
育性
稳定性
低温
lower temperature in mid-summer
the ferility stability of HPGMR
periodic phenomenon
