修剪对野生杜鹃开花的影响

Effect of Pruning on Flowering of Rhododendron simsii Planch

研究了不同修剪方法对野生杜鹃小年开花和枝条生长之间的影响。结果表明:花芽数量和开花数量,短截、摘花和轻回缩与对照存在极显著差异;枝条生长量,摘花、短截、轻回缩、中回缩和重回缩与对照存在极显著差异;摘花和短截既有利于野生杜鹃枝条生长量的增加,还能有效促进花芽分化和开花,花芽数量分别达64.6个/m2和72.8个/m2,开花数量分别达60.8朵/m2和68.5朵/m2。

This paper studied on the impact of different pruning measures on flowering and branches accretion of Rhododendron simsii Planc. In the experiment, six treatments were applied , namely control,plucking flowers, heading-back cut,light cutting-back,media cutting-back and heavy cutting-back, each dealing with three dolphins three plots, and the results showed that plucking flowers,heading-back cut,light cutting-back,media cutting-back and heavy cutting-back for the number of flowers buds and flowering were prominently different to control; plucking flowers,heading-back cut,light cutting-back,media cutting-back and heavy cutting-back for the accretion of branch were also prominently different to control; plucking flowers and heading-back cut contributed to increasing branches accretion of Rhododendron sirnsii Planch ,but also effectively promoted flower bud differentiation and flowering, the volume of flower bud reached 64. 6 and 72.8 per square meter , respectively , flowering number was 60. 8 and 68. 5.