播期对大豆开花及产量的影响  

EFFECT OF SOWING DATES ON BLOOMING MODEL AND GRAIN YIELD OF SOYBEAN

作　　者：陈洁敏[1] 赵九洲[1] 杨方人[2] 赵淑英 

机构地区：[1]山东莱阳农学院 [2]黑龙江八一农垦大学农学系

出　　处：《大豆科学》1998年第3期225-230,共6页Soybean Science

摘　　要：通过对不同播期条件下大豆开花结荚规律的调查，建立了大豆开花模式。结果表明，大豆开放小花数量累积频率的概率单位与开花日序呈对数函数关系，回归模型为：Ｙｐ＝Ａ＋Ｂ．Ｌｎｘ；确定了不同播种时期处理的，“有效花期”范围；分析表明“有效花期”较长，落花落荚率较小，产量较高。“有效花期”长短与结荚率及产量具有一定的相关关系；不同处理的产量差异达极显著水平。This experiment was carride out in the experimental plot of Heilongjiang Aug-lst Land Reclamation University. The Blooming model of soybean was established by the blooming and pod-setting anolog law investigated under the condition of different sowing dates. The result showed that the relationship between probability unit of accumulated blooming frequence and blooming dates was 'Yp=A+B·LnX', and the rang of effective blooming period (EBS) was affirmed. The result of analysis showed that the wider range of 'EBP' the lower percentage of podfiling, and more grain yield was harvested. The 'EBP' had a relation with the percetage of pod-setting and grain yield, singnificantly.

关 键 词：大豆 播期 开花 产量 

分 类 号：S565.1[农业科学—作物学] S352.1