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Allelopathic effects of garlic root exudates on germination and seedling growth of some crops and to control Pythium species

文献类型： 外文期刊

作者： Yuan, Judan 1 ; Qi, Junshan 1 ; Zhang, Bo 1 ; Zhang, Yueli 1 ; Feng, Kai 1 ; Qu, Zhicai 1 ; Li, Changsong 1 ;

作者机构： 1.Shandong Acad Agr Sci, Inst Plant Protect, Shandong Prov Key Lab Plant Virol, Jinan 250100, Peoples R China

期刊名称：ALLELOPATHY JOURNAL （ 影响因子：0.962； 五年影响因子：0.99 ）

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收录情况： SCI

摘要： We assessed the allelopathic effects of garlic root exudates on 3-crops (lettuce, rape and radish) and 6-pathogens (Pythium helicoide, P. irregular, P. ultimum, P. violae, P. heterothal, and P. sylvati). The water culture method was used to collect the root exudates from garlic between 10 to 60 days of plant growth. In bioassays, the effects of root exudates were determined on seed germination and seedling growth of recipient crops and mycelial growth of 6-pathogens. The garlic root exudates exerted the allelopathic effects on 3-test crops and 6-test pathogens and the magnitude of allelopathic effects depended on the garlic plant age and exudates concentration. The root exudates from 10 to 60 days old plants of garlic, inhibited the germination of all test crops and mycelial growth of pathogens. The inhibitory effects of root exudates were highest from the 30- and 40-days old garlic plants. However, the hypocotyl growth of test crops was stimulated. The individual crop and Pythium species differed in their growth responses to the garlic root exudates.

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