SHK-6对大豆根系生理活性和激素的调控效应  

Chemical regulation of endogenous hormones and mineral nutrition in bleeding sap of soybean by SHK-6

作　　者：张明才[1] 段留生[1] 何钟佩[1] 翟志席[1] 曾建波[2] 李召虎[1] 

机构地区：[1]中国农业大学农学与生物技术学院作物化控中心,北京100094 [2]北京市农业技术推广站,北京100029

出　　处：《中国油料作物学报》2005年第3期32-36,共5页Chinese Journal of Oil Crop Sciences

基　　金：国家"863"计划(2003AA241170);农业结构调整重大技术研究专项资助(2003-03-03A)

摘　　要：以鲁豆11号为试验材料,利用植物生长调节剂SHK-6拌种和分枝期叶面喷施,在大田条件下研究了大豆根系对物质吸收和合成能力的变化及SHK-6调控的效应。结果表明,SHK-6处理显著提高了根系还原能力和伤流量,显著促进了根系对硝态氮吸收和氨基酸合成与转化;SHK-6显著提高伤流液中各个生育期内IAA、GAs和CTKs含量,而ABA含量前期SHK-6处理是显著低于对照,生育后期显著促进了ABA的运输量;SHK-6显著提高了产量,改善了产量构成因素。Field experiments were conducted in 2000 at the research center of china agricultural university to examine the effect of PGR SHK -6 on the change of endogenous hormones and nutrition in bleeding sap of soybean （ Ludou 11, cv. ）. Sequential application of SHK - 6 was used for all experiments. Seeds were treated with SHK - 6 at 0.4ml/kg seeds and plants were sprayed at branching stage with a dose of 75ml/ha. The results showed that SHK -6 significantly increased root physiological activity, and the volume of bleeding sap. Furthermore, the flow capacity of nitrite and amino acids in bleeding sap were significantly promoted by SHK -6. During whole growth period, SHK - 6 significantly promoted the flow capacity of IAA （auxin） , GAs （gibberellin） and CTKs （ cytokinins） in bleeding sap, but markedly decreased the flow capacity of ABA at period growth stages and notably increased the flow capacity of ABA （abscisic acid） at later growth stages. SHK -6 significantly increased the yield and improved the yield components.

关 键 词：植物生长调节剂SHK-6 大豆 根系 伤流 激素 

分 类 号：S482.8[农业科学—农药学] S565.101[农业科学—植物保护]