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《Environmental Science & Technology》 2018-06
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Research of Allelopathic Effect on 4 Forage Grass in the Glycine soja Water Extract

ZHANG Weihong;LIU Dalin;SUN Shengnan;WU Ya;CHEN Minghui;YAN Qianjin;College of Animal Science and Technology,Yangzhou University;  
In order to explore the mechanism of mixed region of wild soybean(Glycine soja) and other herbs gradually evolving into a single dominant species with wild soybean, the effects of water extract of wild soybean on seed germination,seedling growth and chlorophyll content were investigated with Petri dish filter paper method compared with distilled water method, with ryegrass, Pennisetum, wild soybean and alfalfa as receptor plants, and wild soybean as donor plant. The research showed that the water extract of wild soybean had inhibitory effect on seed germination rate, seedling height and root length, total dry matter, the content of chlorophyll a and the total content of chlorophyll a and b of herbages. It also had obviously inhibitory effect on the content of chlorophyll B in ryegrass, wild soybean and alfalfa(P0.05). However, it had obviously promoted effect on the content of chlorophyll b of Pennisetum(P0.05). The effects of allelopathy on different receptor plants or different parts in the same receptor plant were different. The inhibitory effect on root length was obviously stronger than on plant height. The sensitivity of different recipient plants to the allelopathic effect of wild soybean stem-leaf extract was different.
【Fund】: 现代农业产业技术体系专项资金资助(CARS-36);; 江苏省博士后科研资助计划(1601042A)
【CateGory Index】: S54
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