摘要
为有效控制大白杜鹃的株高和株型,采用田间试验方法,研究了不同植物生长延缓剂对大白杜鹃株高、地径及叶片气孔特征变化的影响。结果表明:植物生长延缓剂可显著抑制大白杜鹃株高和地径的生长,其中,B92 000mg/L对株高生长抑制效果最好,PP3332 000mg/L对地径生长抑制效果最好;不同处理大白杜鹃叶片的气孔密度、气孔指数、长宽比与对照有显著差异,所有叶片气孔类型均为椭圆形。
To seek the dwarfing technology of R. decorum,the effects of different treatment of plant growth retardant on the seedling height, ground diameter and change of stomata characteristics were studied through a field experiment. The results showed that plant growth retardants could significantly inhibit the height and ground diameter growth of R. decorum. The best retardant of height growth was B9 2000 mg/L, the best retardant of ground diameter growth was PP333 2 000 mg/L. The stomata density, porosity index, aspect ratio of leaves in different treatments were significantly different with the control, the stomata of all leaves was of oval shape.
出处
《贵州农业科学》
CAS
北大核心
2013年第4期143-146,共4页
Guizhou Agricultural Sciences
基金
贵州省科技重大专项项目"贵州省特色作物科特派'万元田'科技示范工程"[黔科合重大专项字(2011)6001]
贵州省农业科技攻关项目"高山常绿杜鹃菌根技术研究"[黔科合NY字(2011)3076]
关键词
大白杜鹃
植物生长延缓剂
矮化
Rhododendron decorum
plant growth retardant
dwarfing
