夏大豆植株干物质积累数学模拟研究

摘要

对夏大豆濉科8号、中黄13两个品种从出苗至成熟共15次测定了植株质量，建立了数学模型。结果表明：植株、茎叶质量呈“慢-快-慢-降”的单峰变化趋势，而籽粒质量呈“慢-快-慢”的S形曲线变化趋势，单株粒重、百粒重则随生育时期呈直线增长趋势。y=e真实的反映了出苗、始花、终花至成熟期植株、茎叶质量变化。%The mathematics model was established through determining plant qulity of summer soybean Suike8 and Zhonghuangl3 from emergence to mature by 15 times, the results was that the qulity of plant, stem and leaf was a single-mountain variable trend of ＂slow-fast-slow-drop＂, seed qulity was S curve variable trend of ＂slow-fast-slow＂, seed weight of single plant and 100-seed weight were linear increasing trend. Exponential curve y=e could really reflect qulity change of plant, stem and leaf from emergence, the early flowering, the ending flowering to mature.