期刊论文

Study on Allelopathy and Identification of Allelochemical in Rhizosphere Soil of Polygonatum

中文

中国农学通报

1000-6850

2015

31

34

163-167

国家科技部支撑课题“玉竹、茯苓规范化种植及其SOP优化升级研究”（2011BAI101B09）；

本校为第一机构

通过对玉竹根际土壤提取液的生物学试验和有机化合物的分离鉴定,探讨玉竹连作障碍与化感作用的关系.采用浸提法制备不同浓度的玉竹根际土壤浸提液,用室内生物测定法测定玉竹的化感效应;采用气相色谱-质谱联用技术(GC-MS)鉴定玉竹根际土壤有机化合物.结果表明:玉竹根际土壤浸提液能显著抑制玉竹自身根茎芽胞发芽率、幼苗苗高及根鲜重,且随浸提液浓度的升高,这种抑制作用增强.在玉竹根际土壤浸提液中鉴定到24个化合物,包括有机酸、酮、醛等化感物质,其中很多被报道是化感物质.可得出结论:玉竹根际土壤浸提液对自身根茎芽胞和幼苗生长具有明显的化感作用,且自毒效应具有一定的浓度依赖性,推断化感作...

The relationship of continuous cropping obstacle and allelopathy of Polygonatum was studiedthrough the biology tests of soil extracting solution and the isolation and identification of organic compounds.Extracting method was used to prepare rhizosphere soil extracting solution of Polygonatum, indoor biologicalassay method was used to measure allelopathy and GC-MS was used to identify the organic compounds. Theresults showed that the rhizosphere soil extracting solution of Polygonatum could significantly inhibit therhizome spore germination rate, seedling height and root fresh weight, and with ...