17种草本植物不同器官干粉对生菜幼苗生长的影响  

Effects of Dried Powder of Different Organ of 17 Species of Herbaceous Plants on Lettuce Seedlings Growth

作　　者：杨玉良[1] 宋吉青[2] 杨从军[1] 罗小勇[1] 

机构地区：[1]青岛农业大学农学与植物保护学院/山东省农作物病虫害综合防控重点实验室,山东青岛266109 [2]中国农业科学院农业环境与可持续发展研究所/农业部农业环境与气候变化重点开放实验室/农业部旱作节水农业重点开放实验室,北京100081

出　　处：《杂草科学》2012年第4期10-15,共6页Weed Science

基　　金："十二五"农村领域国家科技计划项目子课题(编号:2011AA100503);山东省"泰山学者"建设工程专项经费

摘　　要：采用琼脂混粉法测定了17种常见的草本植物不同器官在0.005～0.5 g/L供试浓度下对受体植物生菜幼苗生长的影响。结果表明,供试的各植物器官对其胚根和胚轴的生长均具有不同程度的抑制或刺激生长活性,其中,马齿苋茎和叶、反枝苋茎、葎草叶、狼尾草茎等器官均表现出了较高的刺激生长活性,而其他植物器官的刺激生长活性相对较低或表现为一定的抑制活性。Effects of different organ of 17 species of herbaceous plants on seedling growth of the receptor plant lettuce were tested under testing concentration of 0. 005 - 0.5g/L by using PPA method. The results showed that all of the organs of all of the plants tested demonstrated different degrees of inhibitory or stimulatory activities on radicles and hypocotyls growth of lettuce, among them the stems and leaves of Portulaca oleracea, the stems of Amaranthus retroflexus, the leaves of Humulus scandens, and the stems of Pennisetum alopecuroides all presented relatively high stimulatory activity, but the oth- er plant organs showed relatively lower stimulatory activity or showed certain inhibitory activity on lettuce seedling growth.

关 键 词：草本植物 化感 活性 生长调节 琼脂混粉法 生菜 

分 类 号：Q948.122.1[生物学—植物学]