不同光照强度对二苞黄精植株生长发育的影响  

Effect of Different Illumination Intensities on the Growth and Development of Polygonatum involucratum Maxim

作　　者：张艳艳[1] 张嘉翔[1] 袁晓婷[1] 闫永庆[1] 

机构地区：[1]东北农业大学园艺学院,黑龙江哈尔滨150030

出　　处：《北方园艺》2013年第17期61-63,共3页Northern Horticulture

基　　金：黑龙江省教育厅科学技术研究资助项目(11551052);东北农业大学博士启动基金资助项目(2012RCB63)

摘　　要：以二苞黄精为试材,研究了100%、50%、25%、12%不同遮光处理对二苞黄精株高、叶基径、叶片数、叶面积、开花数和坐果率等生长发育指标的影响。结果表明:不同遮光处理对二苞黄精的各生长发育指标影响较大。其中1层遮阳网处理下二苞黄精的株高、叶基径、叶片数均达到较好的水平;在全光照处理下开花数达到最多;在2层遮阳网处理下坐果率较好。因此,在培育二苞黄精时,营养生长期宜在1层遮阳网的光照条件下栽培,以减少耗水,此后置于全光照下培育,直到坐果时期应该给予适当的遮荫以提高坐果率。Taking Polygonatum involucratum Maxim as test material, setting 100 %, 50%, 25 %, 12 % 4 different shading treatments,the effects of different light intensities on the plant height, leaf base diameter, leaf number, leaf area, number of blossom and fruit setting rate were studied. The results showed that the growth and development indices of P. involucraturn obviously varied under different illumination treatments. Under L1 treatment the plant height, leaf base diameter,number of leaves all achieved good levels. Under L0 treatment,the number of flowers was the most. Under L2 treatment,the fruit setting rate was the highest. P. involucratum should be cultivated under the shading of two-layer shading nets to decrease the water loss in vegetative growth phase, then placed in full exposure condition, at last in proper shading to increase the fruit setting rate in fruit setting phase.

关 键 词：二苞黄精 光照强度 生长发育 

分 类 号：S688[农业科学—观赏园艺]