寒地水稻抽穗期长短与温度关系研究  

Studies on Correlation Between Length of Rice Heading Stage and Temperature in the Cold Region in Heilongjiang Province

作　　者：王立志[1] 王春艳[1] 李忠杰[1] 王连敏[1] 矫江[1] 许显滨[1] 

机构地区：[1]黑龙江省农业科学院栽培所,哈尔滨150086

出　　处：《中国农业气象》2004年第2期43-46,共4页Chinese Journal of Agrometeorology

基　　金：黑龙江省科技攻关项目"寒地优质水稻生产障碍发生机制及对策研究"(GCB30 5- 0 3)

摘　　要：试验分析的结果表明 :寒地水稻不同品种发生早穗现象的程度及危险性不同 ;抽穗期长短与移栽时秧龄、移栽后第 11～ 2 0d积温、2 1～ 30d积温呈极显著正相关 。The correlation between the length of rice heading stage and seedling standing and transplanting period was studied. The result showed that the length of rice heading stage was positively correlated both with the seedling standing and accumulated temperature from 11^(th) to 20^(th) days and from 21^(st) to 30^(th) days after transplanting. The reasons led to the early-heading and extended heading stage were a longer seedling standing period and a high temperature after transplanting in the cold region.

关 键 词：寒冷地区 水稻 抽穗期 温度 早穗现象 发生机理 

分 类 号：S511[农业科学—作物学]