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| Effects of Arbuscular Mycorrhizal Fungi on Tomato Growth and Root-Knot Nematode Disease |
| ZHOU Liyan，LU Jianzeng，HUANG Xinyi，SUN Zhaozhi，WU Fengzhi，GAO Danmei* |
| （College of Horticulture and Landscape Architecture，Northeast Agricultural University，Harbin 150030，Heilongjiang，China） |
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Abstract Abstract：To investigate the effects of arbuscular mycorrhizal fungi（AMF）on tomato plant growth andits inhibitory effect on root-knot nematodes，a greenhouse pot experiment was conducted．The Funneliformismosseae was inoculated in tomato seedlings along with second-stage juveniles of southern root-knotnematodes，while a control group without AMF inoculation was set up．The results showed that compared tothe control group，the aboveground fresh and dry mass of tomato seedlings significantly increased by 18.1%and 24.8%，respectively，after AMF inoculation．The disease index of root-knot nematode infection decreasedby 29.5%．The content of N，P，and K in plants increased by 6.9%，80.5%，and 63.0%，respectively．Additionally，soil ammonium nitrogen，nitrate nitrogen，available phosphorus，and available potassiumcontent increased by 6.8%，20.7%，8.1%，and 7.8% respectively after AMF inoculation．Overall，thesefindings demonstrate that AMF inoculation promotes tomato growth，suppresses the occurrence of root-knotnematode disease in tomatoes，and increases nutrient levels in both plants and soil．
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Received: 08 August 2023
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