大豆籽粒异黄酮含量与生态因子相关关系的研究

• 作 者: 李卫东 梁慧珍 卢为国 王树峰 杨青春 杨彩云 刘亚非
• 机 构: 河南省农业科学院棉花油料作物研究所,河南省农业科学院棉花油料作物研究所,河南省农业科学院棉花油料作物研究所,河南省农业科学院棉花油料作物研究所,周口市农科所,濮阳市农科所,焦作市农科所 郑州45000
• 出 处: 中国农业科学
• 发表日期: 2004年10期
• 关键词: 大豆 异黄酮 生态因子 分期播种

2001～2002年在河南省夏大豆主产区的5个试点,以豫豆25号为材料分13期播种,将109个大豆样本的异黄酮含量与气象、土壤养分和海拔等33个生态因子进行了逐步回归统计分析。结果表明,9个生态因子与大豆异黄酮含量密切相关。并明确了在夏大豆鼓粒成熟期较低的均温和较大的昼夜温差有利于异黄酮的积累;在出苗期较多的日照和较低的均温有利于异黄酮的形成;出苗期降水与异黄酮含量呈二次抛物线曲线关系,75mm是最佳值;分枝期较小的昼夜温差利于异黄酮的形成;土壤中较高的有机质含量和较低的硫含量也有利于异黄酮含量的提高。在本试验研究因子范围内,其它生态因子对大豆异黄酮含量无明显影响。

From 2001 to 2002, five pilot plots of summer soybean in Henan Province were planted. Thirteen soybean cultivars (Yudou 25) were used for sowing. The isoflavone content of 109 soybean samples was compared with 33 ecological factors including meteorology, soil nutrient and altitude A stepwise regression analysis was carried out. The results showed that nine ecological factors were closely related to the content of soybean isoflavones. The results showed that the lower average temperature and the larger temperature difference between day and night in the ripening stage of summer soybean led to the accumulation of isoflavones. The more sunshine and lower average temperature during seedling stage were conducive to the formation of isoflavones. And isoflavone content showed a quadratic parabola curve, 75mm is the best value; a small branch of the diurnal temperature difference is conducive to the formation of isoflavones; soil higher organic matter content and lower sulfur content is also conducive to isoflavone content Improve. Within the scope of this experimental study, other ecological factors had no significant effect on the content of soybean isoflavones.