厚朴水浸提液对4种农作物的化感作用  

Allelopathic Effects of Aqueous Extract from Magnoliae officinalis Cortex on Four Crops

作　　者：吴佳靓[1,2] 马丹炜[2] 王跃华[1] 马建培[1] 

机构地区：[1]成都大学生物产业学院,四川成都610016 [2]四川师范大学生命科学院,四川成都610101

出　　处：《西南农业学报》2013年第5期2176-2178,共3页Southwest China Journal of Agricultural Sciences

基　　金：成都大学2012年校基金重点项目(2012-11)

摘　　要：本文以抗热上海青、意大利耐抽苔生菜、黄金小白菜、春秋圆叶菠菜为受试植物,研究了厚朴水浸提液对这4种农作物的化感作用.结果表明：不同浓度的厚朴水浸提液对意大利耐抽苔生菜种子的萌发、幼苗根生长及幼苗生长都表现出抑制作用;抗热上海青和春秋圆叶菠菜,在较低浓度（0.01 g· mL-1）的厚朴水浸提液处理下,其种子萌发、幼苗根生长及幼苗生长都表现为促进作用,而在较高浓度（0.02～0.04 g·mL-1）下表现出抑制作用,且随着浓度的升高抑制效应更加明显;在不同浓度的厚朴水浸提液处理下,黄金小白菜种子的萌发和幼苗根生长都表现出被抑制的现象,但在高浓度下仍只受轻微的抑制作用,最特别的是其幼苗生长在低浓度处理下（0.01 ～0.02 g·mL-1）呈促进作用,高浓度（0.03 ～0.04 g·mL-1）下抑制其生长.In this study,the allelopathic effects of the aqueous extract of Magnoliae officinalis Cortex on the four crops（Shanghai green heat,Italy bolting-resistant lettuce,cabbage gold,leaf spinach,spring and autumn round） were determined.The results showed that the aqueous extracts of different concentrations had a considerable inhibitory effect on seed germination,seedling root growth and seedling growth of the Italy bolting-resistant lettuce.However,the aqueous extracts of lower concentration （0.01 g · mL-1） promoted the seed germination,seedling root growth and seedling growth of Shanghai Green heat and leaf spinach of spring and autumn round and had inhibition with the high concentrations （0.02-0.04 g · mL-1）,and its inhibition effect increased with the increase of concentration.Commonly,the seed germination,seedling root growth of cabbage gold had a slight inhibition with the aqueous extracts of different concentrations,but its seedling growth was promoted with the lower concentrations （0.01-0.02 g · mL-1） and inhibited with the higher concentrations （0.03-0.04 g · mL-1）.

关 键 词：厚朴 化感作用 种子萌发 幼苗生长 

分 类 号：S682.31[农业科学—观赏园艺]