植物生长调节剂对大豆荚皮同化物代谢及糖分积累的影响

Effects of Plant Growth Regulators (PGRs) on Assimilation Metabolism and Sugar Accumulation in Pod Husks of Soybean

采用大田叶面喷施的方式，比较了不同植物生长调节剂对大豆荚皮同化物及糖分的影响，研究了大豆荚皮中同化物代谢和糖分积累的特点。结果表明：在喷药后40d内，氯化胆碱（Cc）显著降低了荚皮中可溶性蛋白含量，SOD模拟物（SODM）明显提高了荚皮中游离氨基酸的上升幅度，并与2-N，N-二乙氨基乙基己酸酯（DTA-6）共同提高了荚皮硝态氮含量。其中在喷药后10～30d，SODM增加了淀粉的输出量，且可溶糖和蔗糖的积累量明显高于对照，DTA-6次之。综合分析表明，叶面喷施SODM和DTA-6改善了荚皮内同化物代谢水平，增加了荚皮内碳水化合物的积累量，有效地调控了荚皮中淀粉含量的输出和积累过程。

The field experiments were carried out to investigate tors （PGRs）on assimilation and sugar accumulation in soybean the effects of different plant growth regulaleaves. The results show that Choline Chloride （Cc） significantly reduced the contents of soluble protein in pod skin of soybean from spraying 5th to 40th day, SOD simulation material （ SODM ） had markedly enhanced the contents of free amino acids （FAA） in pod husks,and the same as diethyl aminoethyl hexanoate （DTA-6） common raised NO3-N^- contents of the pod husks. In the spraying from the 10th to 30th day,SODM increased the output of starch, and soluble sugar and sucrose accumulation were significantly higher than that of CK, followed by DTA-6. The above results indicated that it was effective to increase the accumulation of carbohydrates of its pod husks,maintained the metabolic level of percutaneous assimilation, and effectively controled the output and accumulation process of starch by spraying SODM and DTA-6.