摘要
为了探讨中草药党参和黄芪种植地土壤水浸液对蚕豆的化感作用,采用生物测定方法研究了不同浓度(0.5000、0.2500、0.1250、0.0625 g/mL)中草药党参和黄芪种植地土壤水浸液对蚕豆种子萌发及幼苗生长的影响。结果表明,两种中药种植地土壤水浸液对受体蚕豆种子吸胀过程中相对吸水量的增加有抑制作用,抑制程度随着水浸液浓度的升高而增强;水浸液对蚕豆种子萌发和幼苗生长的化感效应在低浓度时表现为化感促进作用,在高浓度时表现为化感抑制作用;水浸液对蚕豆幼苗渗透调节物质可溶性糖、MDA和Pro的含量均有显著影响;种植地土壤水浸液对蚕豆的化感效应由强到弱依次为:党参和黄芪>黄芪>党参。
The allelopathy of planting soil aqueous extract from Codonopsis pilosula and Astragalus membranaceus, var. mongolicus on Viciafaba was studied. The effect of different concentration （0.5000, 0.2500, 0.1250 and 0.0625 g/mL） of planting soil aqueous extract from C. pilosula and A. rnembranaceus, var. rnongolicus on seed germination and seedling growth of V. faha was researched by bioassay method. The results showed that the increase of relative waterintake rate of V. faba in the course of seed imbibition could be inhibited by aqueous extract. The low concentration of planting soil aqueous extract from C. pilosula and A. membranaceus.var, mongolicus could promote the seed germination and seedling growth of V. faba, but the high concentration of planting soil aqueous extract from Codonopsis pilosula and A. membranaceus, var. mongolicus would inhibit the seed germination and seedling growth of V. faba. The content of dissolubility, malonaldehyde and Pro in the leaf increased with the increment of queous extract concentration. The allelopathy of planting soil aqueous on V. faba from strong to weak were C. pilosula＋A, membranaceus, var. mongolicus〉A, membranaceus.var, mongolicus〉C. pilosula.
出处
《广东农业科学》
CAS
CSCD
北大核心
2013年第6期18-21,28,共5页
Guangdong Agricultural Sciences
基金
甘肃省中青年基金(3YSO61-A25-030)
甘肃省教育厅项目(0928B-1)
陇南师范高等专科学校重点项目(2012LSZK01001)
关键词
党参
黄芪
种植地土壤水浸液
蚕豆
化感作用
Codonopsis pilosula
Astragalus membranaceus.var, mongolicus
planting soil aqueous extract
Viciafaba
allelopathy
