水分对怀牛膝农艺性状、单株产量和牛膝多糖含量的调控效应

Modulation of Agronomic Indexes,ABPS and Yield by Soil Water in Achyranthes bidentata

通过对怀牛膝茎叶生长期、根伸长期、根膨大充实期分别进行55%、65%、75%、85%四个土壤水分处理,研究了怀牛膝农艺性状、单株产量及牛膝多糖含量的水分调控效应。结果表明:茎叶生长期85%水分处理的株高和根粗表现最好,伸根期75%水分处理茎粗和根粗表现最好。单株产量与多糖趋势一致,茎叶生长期和根伸长期75%和85%水分处理最好,根膨大伸长期65%和75%水分处理最好。进一步对农艺性状、单株产量对牛膝多糖含量的通径分析结果表明,根粗、单株产量可作为评估牛膝多糖的参考指标。怀牛膝生长前期适量灌水对产质的提高有重要作用。

： The effects of different water suppling level and period on agronomic characteristics, yield and polysaccharides content of Achyranthes bidentata were investigated. The results shows that 85% water treatment on period 1 is best for height and branch thickness and 75% water treatment on period 2 for branch and root thickness. There are both good at 75% and 85% water treatments on period 1 and period 2 and 65% and 75% water treatment on period 3 of yield and Achyranthes bidentata polysaccharides. Effects of high, root length, branch thickness, root thickness, branch internode, yield on Achyranthes bidentata shows that branch thickness and yield can estimate A chyranthes bidentata polysaccharides.