断根·施肥和根施多效唑对金槐性状和产量的影响

Effects of Root Cutting Combined with Fertilization and Paclobutrazol on Characters and Yield of Sophora japonica

[目的]筛选经济有效的金槐高产措施,为广西金槐规范化种植提供参考。[方法]采用正交设计研究断根、肥料种类、多效唑组合对金槐性状及产量的影响。[结果]4个正交组合的大枝数均小于对照,中枝数均高于对照;中穗数和小穗数均有所增加;冲梢率基本为零,可有效地降低金槐的冲梢率;开花整齐度较好,花序紧凑度均有所提高;4个组合均可提高金槐的鲜重和干重。冬季对金槐进行全断根处理后,根施农家肥(10.0 kg/株)和多效唑(50 g/株)可有效防止冲梢并提高产量。[结论]该方法可作为金槐的高产技术进行推广。

[ Objective ] To screen economic and effective high yield measures,and provide reference for standardized planting of S. japonica in Guangxi. [ Method ] The effects of cutting root,fertilizer and paclobutrazol combination on the characters and yield of Sophora paponicc were studied by orthogonal design. [ Result] The number of big branches of the four orthogonal combinations was ber of middle branches was higher than control. The number of middle spikelets and small spikelets increased. The shoot rate was basically ze-ro ,which could effectively reduce the shoot rate of S. japonca ; Flowering uniformity was good, inflorescence compactness was improved; The fresh and dry weight of S. japonca could be increased by the four combinations. After the whole cutting root treatment of S. japonicc in win-ter, the root application of 10. 0 kg/plant farmyard manure and 50 g/plant paclobutrazol could effectivyield. [ Conclusioo ] The method can be used as a high-yield technology promotion of S. japonicc.