苜蓿化感作用研究进展

摘要/Abstract

摘要： 苜蓿是一种优良的多年生豆科牧草,具有多重生态功能,在世界范围内广泛种植。苜蓿在第2～4年后产量逐渐下降,而且种过苜蓿的土壤,间隔较短时间再种苜蓿,很难建植成功。许多研究表明,苜蓿体内含有的一些水溶性化学物质不仅能够对其产生自毒作用,而且也能对其他植物具有化感作用。本文综述了苜蓿化感作用研究进展,包括苜蓿中主要的化感物质、影响苜蓿化感作用的因素、苜蓿化感作用的应用三个方面。同时就苜蓿化感作用今后的研究重点提出一些看法和展望。

关键词: 稀土元素, 植物, 生物效应, 机理

Abstract: Medicago sativa is a perennial legume with high nutrition and multiple ecological functions,cultivated comprehensively all over the world.Generally,M.sativa has a productivity peak at the 2nd～4th plant year,and it is difficult to reestablish M.sativa in the same field after a short interval.M.sativa plant contains water-soluble substances that are toxic to itself (autotoxicity) and to other plants (allelopathy).The research progress in M.sativa allelopathy was reviewed in this paper,including the main allelochemicals of M.sativa,factors influencing M.sativa allelopathy,and the applied research on M.sativa allelopathy.Moreover,the future research directions of M.sativa allelopathy were put forward.

Key words: Rare earth element, Plant, Biological effect, Mechanism

中图分类号:

Q948

李玉占, 梁文举, 姜勇. 苜蓿化感作用研究进展[J]. 生态学杂志, 2004, (5): 186-191.

LI Yuzhan, LIANG Wenju, JIANG Yong. Research progress in alfalfa allelopathy[J]. cje, 2004, (5): 186-191.

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