江西农业学报2012，Vol.24Issue(6)：176-178,3.
早稻春季低温气象灾害指标研究
Study on Meteorological Indexes of Spring Low Temperature Injury to Early Rice
摘要
Abstract
The meteorological indexes of spring low temperature injury to early rice were studied by means of artificial climate chest, and the seedling formation rate of the seeds injured by low temperature and the growth status of the injured seedlings were investigated. The results indicated that the low temperature (8℃,9℃) treatments for 1 ～3 days had no influence on seedling rate, that for 4 days had lightly infaust influence, and that for 5 days had seriously disadvantageous influence. There was no significant difference in seedling decline rate between 8℃ treatment and 9 ℃ treatment for the same days. The survival rate of the seedlings at 8 ～ 11 ℃. for 1 ～ 3 days was not influenced, that for 4 days was gently effected, and that for 5 days was seriously affected. When the duration of low temperature (8 ～ 11℃ ) treatments was 5 days, the significant difference in the seedling rate among different treatments was found. In field, the later developmental process of the survival seedlings was not attenuated by earlier low temperature treatment.关键词
早稻/春季低温/气象指标Key words
Urban climate/ Human activity/ Correlate model/ Xi'an city分类
农业科技引用本文复制引用
王尚明,张文红,曾凯,吕亚南,肖洪,张清霞,胡逢喜..早稻春季低温气象灾害指标研究[J].江西农业学报,2012,24(6):176-178,3.基金项目
公益性行业科研专项(GYHY201006025). （GYHY201006025）
