大豆子粒中干物质、脂肪和蛋白质积累规律的研究

Study on the Accumulation Regularity of Soybean Seeds Dry Matter,Fat and Protein

利用4个不同蛋白质含量的大豆品种为材料,测定子粒中干物质、脂肪和蛋白质的动态变化。结果表明:不同品种大豆子粒中干物质积累呈S形曲线变化;脂肪含量随子粒的形成呈S形曲线变化;蛋白质含量随子粒的形成而逐渐增加,大致呈W形曲线变化。子粒形成后期,脂肪积累量与干物质积累量呈正相关,在子粒干物质快速增长期呈显著正相关;脂肪积累量与蛋白质积累量在子粒形成前期呈正相关,中期负相关,后期呈显著负相关;干物质积累量与蛋白质积累量在子粒形成前期呈正相关,子粒形成中后期呈负相关。

Contents of dry matter, fat and protein were measured in four soybean varieties every other five days from the 25th day after flowering. The results showed that the accumulation of dry matter and fat contents exhibited a changing pattern of S-shape curve. The protein content increased gradually, with a pattern of W-curve. In the later period of seeds formation, the accumulation of the fat was positively correlated with the accumulation of dry matter. The accumulation of fat was positively correlated with the accumulation of protein in the beginning period of the seeds formation, but had negative correlation in the middle and later period. The accumulation of dry matter was positively correlated with the accumulation of protein in the beginning period of the seeds formation, but had negative correlation in the middle and latter period.