IDENTIFITION AND STUDY ON ALLELOPATHY OFSOYBEAN ROOT EXUDATES(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:

2000年02期

Page:

119-125

Research Field:

Publishing date:

Info

Title:

IDENTIFITION AND STUDY ON ALLELOPATHY OFSOYBEAN ROOT EXUDATES

Author(s):

Han Limei¹　Wang Shuqi¹　Ju Huiyan¹Yan Fei¹　Li Guoquan¹Liu Jinping¹　Ya n Jichang²

1. Department of A gronomy , Quartermaster Universi ty of PL A,Changchun 130062

2. Mass Spect rographic Laboratory of Northeast N ormal University ,Changchun 130061

Keywords:

Soy bean;  Root ex udates;  GC- M S;  Allelo pathy

PACS:

-

DOI:

10.11861/j.issn.1000-9841.2000.02.0119

Abstract:

Compounds ex t racted wi th dichlo romethane f rom soy bean roo t ex udates fo rtw o w eeks, eight w eeks in wa ter- culture w ere identified a nd allelopathy w ere studiedby GC- MS analysi s. The resul ts show ed that: The soybea n roo t ex udates ex t ractedw ith dichloromethane included o rg anic acide, alcoho l, ester , acetone, aldehyde,phenol , pheyl , hydrocarbo n and so o n. Ma ny of which w ere repo rted asallelochemicale. Co nt rast w ith co nt ro l, the inf luence o f the soy bean roo t exudates fo rtw o w eeks, eight w eeks o n the germinatio n of soybea n seeds, for eig ht w eeks o n radicleg row th did no t show sig nificant al lelo pathy inhibi tio n. But the allelopa thy o f thesoybean roo t ex uda tes fo r tw o weeks o n soy bean radicle g row th show ed sig ni ficantinhibi tio n. The resul ts show ed that the al lelochemicals exist in the soy bean ro otex udates. Th e v arieties a nd quanti ties of soybea n root ex udates for tw o w eeks aredi fferent wi th tho se for eight w eeks. In addition, the alleleo pathy o f so ybean ro otex udates and the relatio nship betw een soybea n roo t exuda tes and ba rrier o n so ybeancontinuous and alternate cro pping w ere discussed.

References:

1　Rice EL. Allelopat yh. And Ed, Acad emic Press , Orl and o, 1984

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