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）.
出处
《西南农业学报》
CSCD
北大核心
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)
关键词
厚朴
化感作用
种子萌发
幼苗生长
Magnoliae officinalis Cortex
Allelopathy
Seed germination
Seedling growth
