金合欢叶中的化感化合物及其对高粱的影响

Allelopathic compounds in leaves ofGliricidia sepium (Jacq.) kunth ex walp. and its effect onSorghum vulgare L.

机构信息

Department of Plant Sciences Biomass Research Center, Madurai Kamaraj University, 625 021, Madurai, India.

出版信息

J Chem Ecol. 1993 Aug;19(8):1691-701. doi: 10.1007/BF00982301.

Abstract

Allelochemicals fromGliricidia sepium were extracted, identified, and quantified using HPLC. Fifteen toxic compounds, namely gallic acid, protocatechuic acid,p-hydroxybenzoic acid, gentisic acid,Β-resorcyclic acid, vanillic acid, syringic acid,p-coumaric acid,m-coumaric acid,o-coumaric acid, ferulic acid, sinapinic acid (trans andcis forms), coumarin, and myricetin were identified and quantified. These compounds from the plant extracts were tested on the seeds of the crop plant,Sorghum vulgare. Rate of germination of the seeds and root elongation were found to be inhibited by the various compounds of the extract. Different quantities ofGliricidia leaf mulch, viz., 400, 800, and 1200 g/m(2) applied to theSorghum grown fields, were found to effectively control weeds. Mulching improved the total yield ofSorghum. Leaf manuring and mulching showed better crop yield when applied up to 800 g ofGliricidia leaf/m(2). Crop yield was better in mulch-applied fields when compared to the manure-applied ones.

摘要

利用高效液相色谱法从金合欢中提取、鉴定和定量了化感物质。鉴定并定量了 15 种有毒化合物，分别为没食子酸、原儿茶酸、对羟基苯甲酸、龙胆酸、β-雷琐酸、香草酸、丁香酸、对香豆酸、间香豆酸、邻香豆酸、阿魏酸、芥子酸（顺式和反式）、香豆素和杨梅素。从植物提取物中分离出的这些化合物被用于测试作物高粱的种子。发现种子发芽率和根伸长受到提取物中各种化合物的抑制。在高粱种植地施加不同数量的金合欢叶覆盖物，如 400、800 和 1200 g/m(2)，可有效控制杂草。覆盖物提高了高粱的总产量。当应用 800 g/m(2)的金合欢叶进行叶肥和覆盖时，作物产量表现更好。与施肥相比，在施加覆盖物的田地里，作物产量更好。