摘要
对寒地水稻抽穗期的灰色关联分析表明 ,对寒地水稻抽穗期影响较大的因素依次是移栽后第 2周积温、秧苗期积温、移栽时秧龄和移栽期等 ,而移栽后第 7周积温、主茎叶片数、播种期和移栽后第 1周积温等对抽穗期的影响较小。
The gray correlation analysis of rice heading in cold region was studied, the result show that: the factors affecting rice heading in cold region were in turn-the accumulated temperature of the second week after transplanting, the accumulated temperature of seedling period, the age and the date of transplanted seedling. some factors in including the accumulated temperature after six weeks of transplanting, the leaves of the main stem, the sowing date and the accumulated temperature of the first week after transplanting,have little effect on rice heading in cold region.
出处
《黑龙江农业科学》
2004年第5期21-23,共3页
Heilongjiang Agricultural Sciences
关键词
寒地
水稻
抽穗期
灰色关联分析
rice
heading stage
gray correlation analysis
earlier-heading.
