文档介绍:: .
分子植物育种,对大豆的促进效果和对马齿苋的抑制效果均越加明显。红树莓死根浸提液对于蒲公英表现出促
进生长(促进率为 %),随着浓度的升高促进效果越来越明显,对于马齿苋起抑制作用(抑制率为 %),
且随着浓度的升高,抑制效果越来越显著,对于大豆的生长表现低浓度抑制,高浓度促进的趋势。红树莓
活根、死根对三种间作物种子萌发及幼苗生长的综合化感效应不同。本研究为红树莓合理选择间作物提供
科学依据。
关键词 红树莓; 根系; 种子萌发; 化感物质
Effects of Allelochemicals from Red Raspberry Roots on Seed
Germination and Growth of Intercropping Crops
Liu Keyi Wang Xiaoxiang Zhang Liye Qiu Jiaqi Li Han Guo Suping Liu Yang Zhang Xuemei*
College of Forestry, Hebei Agricultural University, Baoding, 071000
Corresponding author, ******@
Abstract In order to explore the effects of allelochemicals from the roots of red raspberry on seed germinationand seedling growth of different crops, purslane, dandelion and soybean seeds were used as receptor materials,
and the effects of different concentrations of root water extracts of live and dead roots ( g·L-1, 5 g·L-1, 10 g·L-1)
of red raspberry were studied by indoor culture method. Germination rate, germination index, seedling height and
root length were tested as indexes to measure the influence of red raspberry on the growth of intercropping crops.
The results showed that: different concentrations of red raspberry root extracts had different effects on the three
kinds of crops. The extract of raspberry living root inhibited the growth of purslane (inhibition rate was %)
and promoted the growth of soybean (promotion rate was %), and showed a trend of promoting the growth of
dandelion at low concentration and inhibiting the growth at high concentration. With the increase of the
concentration of the extract, the promotion effect on soybean and the