SHK-6对大豆株型、产量及其生理基础的调控  

Regulation of plant growth regulator SHK-6 on canopy,yield and physiological base of soybean

作　　者：张海峰[1] 张明才[1] 翟志席[1] 何钟佩[1] 段留生[1] 李召虎[1] 

机构地区：[1]中国农业大学农学与生物技术学院农学系,北京100094

出　　处：《中国油料作物学报》2006年第3期287-292,共6页Chinese Journal of Oil Crop Sciences

基　　金：国家重点新产品计划(2005ED105002);农业科技资金项目(05EFN217100434)

摘　　要：以中黄4号为试验材料，在大田条件下，利用新型植物生长调节剂SHK-6为调节手段，研究大豆株型、产量品质的形成及其生理基础。试验于分枝期叶面喷施SHK-6，结果表明：1）促进有效分枝数和百粒重的增加。显著提高了单株荚数、粒数和产量，提高了籽粒蛋白质和氨基酸以及必需氨基酸含量；2）修饰株型。显著降低结荚高度，有效延缓了处理后3—4个节间的伸长，促进了上部节间的伸长；3）显著改善了叶片生理功能，如叶片可溶性蛋白含量、硝态氮、硝酸还原酶的活性明显提高；4）显著提高了根系生理活性，如显著提高根系活力、伤流量、伤流中的硝态氮、氨态氮、速效磷的含量。SHK-6可以通过塑造株型，改善叶片和根系生理功能，实现产量和品质的协同改善。Plant growth regulators, both natural and synthetic, are widely applied to agricultural crops as a means of crop improvement. The effect of SHK-6 （80% Diethyl aminoethyl hexanoate and Mepiquat chloride, 1 ： 5） on canopy, leave physiology, root physiological activity and seed yield of soybean （ Glycine max L. cv. ）, Zhonghuang 4, was studied. SHK - 6 was foliar applied at branching stage at 100mg/L and 200mg/L, with water as control. The results showed： 1） SHK -6 treatment significantly increased pods per plant, seeds per plant and seed yield, and efficient branches and 100 - seed weight were improved by SHK -6 treatment as well. SHK -6 treatment promoted protein content in grains, and also improved total amino acids and necessary amino acids. 2） SHK -6 treatment significantly decreased podding height, efficiently inhibited the development of 3 - 4 internodes and promoted upper internodes growth. 3） SHK -6 significantly increased leaf physiology, such as soluble protein and nitrite contents. NR activity in leaves was increased by SHK -6 treatment. 4） SHK -6 significantly increased root physiological activity, for example, root activity, bleeding sap, NO3^- - N and NH4^＋ - N and phosphorus contents were markedly improved by SHK -6.

关 键 词：植物生长调节剂SHK-6 大豆 株型 产量 根系 叶片 

分 类 号：S565.1[农业科学—作物学] S482.8