摘要
通过阐述太阳光照射时间长度几个概念的区别和联系,提出生物生理生态光敏感特性鉴定指标应为光照时间.再根据日地关系,推算出光照时间的计算方法,并按此方法计算出湖南5个和海南3个代表站每月15日的光照时间.分析比较不同气候及光照度条件下光照时间与可照时间之间的数据差异,说明可照时间在光温敏核不育水稻生态光敏感特性鉴定中的不足.最后还提出了一种有效估算不同光照度下人工模拟光照时间的试验方法,并探讨光照时间在光温敏核不育水稻光敏感特性鉴定中的应用.
This paper adduces that the index of biological physioecology photosensitive identification is daylength, by elaborating the distinction and the relation between some concepts related to the daylength, the duration of possible sunshine and the sunshine duration. The method of daylength deduced and computed is put forward according to the cardinal principle that the earth revolves both round the sun and on its own axis.The daylength data on monthly fifteenth in five main stations in Hunan and in three main stations in Hainan can be calculated with this method. It illustrates the insufficience of photothermo sensitive genic male sterile rice photosensitive identification in ecology by the duration of possible sunshine, by comparing the difference of data on daylength and the duration of possible sunshine in different synoptic climate. Finally,one experimental way of artificial simulation daylength is put forward for estimating validly daylength in different illuminances,and the application to photosensitive identification on photothermo sensitive genic male sterile rice is discussed.
出处
《湖南农业大学学报(自然科学版)》
CAS
CSCD
北大核心
2003年第4期279-282,共4页
Journal of Hunan Agricultural University(Natural Sciences)
基金
湖南农业大学青年基金资助项目(02-02)
关键词
光照时间
推算技术
光温敏核不育水稻
感光性鉴定
day-length
skill of deduction and calculation
photo-thermo sensitive genic male sterile rice
photosensitive identification