【摘要】 本文将大豆开花至成熟期间分为九个生育时段,建立脂肪、蛋白质与气象因子的积分回归方程,并对每个生育时段中温度、降水、日照的时间分布所导致籽实脂肪、蛋白质含量发生变化的相关规律进行了初步研究。结果认为,每一单位温度(℃)、降水(mm)、日照(小时)在大豆脂肪、蛋白质累积的不同生育时段中所起的作用是不同的(正效应或负效应),同样的作用在量上也有较大的差别。这是一个品种在当地多年种植所产籽粒中脂肪、蛋白质含量存在差异的主要原因。其中降水量具有决定性作用。大豆脂肪与蛋白质的形成对7月下旬至8月上旬气象因子的不同要求,是达成两者含量呈负相关的主要原因。根据不同生育阶段气象因子对脂肪、蛋白质累积的不同效应情况,将脂肪、蛋白质累积的全过程分为四个时期。更多还原

【Abstract】 Nine growth periods of soybean had been divided from flowering time to ripening stage. The integral regression equations between fat, protein and climatic factors had been built. The correlation regulation relating the changing of fat and protein content in the seed depending the timely distribution of temperature, rainfall and day length in each growth period had also been studied tentatively.The results showed that the effects of the accumulation of fat and protein in soybean in different growth period were different (positive effects or negative effects) by per unit change of temperature (℃), rainfall (mm) and day length (hour). It’s the main reason why fat and protein content in soybean seed appeared different on the same variety planting in the same location in different years. Among the climatic factors, rainfall is a decisive one. Because of the contrary demand for the climatic factors from the last ten days of July to the first ten days of August, the content of fat and protein appeared with negative correlation. According to the different effects on the accumulation of fat and protein by climatic factors in different growth stages, the full course of the accumulation of fat and protein can be divided into four stages.更多还原