Allelopathic potential of root exudates of larch (Larix gmelini) on Manchurian walnut (Juglans mandshurica)

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	Allelopathic potential of root exudates of larch (Larix gmelini) on Manchurian walnut (Juglans mandshurica)
	Yang, LX; Yan, XF; Kong, CH; Kong, CH, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
刊名	ALLELOPATHY JOURNAL
	2007
卷号	20 期号:1 页码:127-133
关键词	Allelochemicals Allelopathy Juglans Mandshurica Larix Gmelini Lc/ms Root Exudates
ISSN号	0971-4693
英文摘要	In this study, allelopathic potential and chemical components of root exudates from L gmelini on J. mandshurica were investigated. The root exudates of L. gmelini at different concentrations stimulated the biomass, chlorophyll contents and soluble sugar in of J. mandshurica seedlings. The application of 0.001, 0.01, 0.1, 1.0 g.L-1 concentrations of root exudates increased the seedlings biomass by 1.45, 1.32, 1.17 and 1.14 times over the control. Likewise, the applied root exudates of L. gmelini at 1 g.L-1 concentration and the fraction extracted by chloroform from L. gmelini root exudates at 1.0 g g.L-1 and 0.1 g.L-1 concentrations increased the soluble sugar content by 1.30, 1.24 and 1.22 times over control. Using the liquid chromatography/mass spectrum (LC/MS) technique, several types of compounds (phenolics, catechins and abietane diterpenoids) were identified in the root exudates of L. gmelini. Some of these compounds (catechins, lariciresinol and secroisolariciresinol) act as allelochemicals and stimulated the growth of J. mandshurica seedlings. Thus the root exudates of L. gmelini have stimulatory allelopathic effects to improve the productivity in J. mandshurica plantation in inter-planting with L. gmelini. Thus the establishment and management of Manchurian walnut Q. mandshurica) can be improved by inter-planting with larch (Larix gmelini) in Northeast China.
学科主题	Agronomy
语种	英语
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/54687]
专题	沈阳应用生态研究所_沈阳应用生态研究所
通讯作者	Kong, CH, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Yang, LX,Yan, XF,Kong, CH,et al. Allelopathic potential of root exudates of larch (Larix gmelini) on Manchurian walnut (Juglans mandshurica)[J]. ALLELOPATHY JOURNAL,2007,20(1):127-133.
APA	Yang, LX,Yan, XF,Kong, CH,&Kong, CH, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China.(2007).Allelopathic potential of root exudates of larch (Larix gmelini) on Manchurian walnut (Juglans mandshurica).ALLELOPATHY JOURNAL,20(1),127-133.
MLA	Yang, LX,et al."Allelopathic potential of root exudates of larch (Larix gmelini) on Manchurian walnut (Juglans mandshurica)".ALLELOPATHY JOURNAL 20.1(2007):127-133.