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《Northern Horticulture》 2017-24
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Effects of Inorganic Compounds on Survival of Meloidogyne hapla Juveniles

WU Xiaojing;LI Chengliang;ZHOU Yuanyuan;DUAN Yuxi;CHEN Lijie;Plant Protection College,Shenyang Agricultural University/Nematological Institute of Northern China;College of Plant Protection,Northwest A & F University;  
Meloidogyne hapla was used as the target material to study the effects of eight compounds on the survival of M.haplaJ2 at different concentrations invitro,in order to provide basic knowledge for ecological control.The results showed that different inorganic compounds had different effect on M.hapla;and the lethality of the same compounds at different concentration was different too,with the increase of concentration,the mortality of J2 increased.While NH_4HCO_3,FeCl_3·6 H_2O,CuCl_2·2 H_2O,CuSO_4·5 H_2O were the most sensitive among 8 compounds,and the LC50 were respectively0.005 957,0.000 771,0.000 159,0.000 161 mol·L~(-1).All compounds at LC50 and LC90 had no inhibitory effect on tomato seed germination except for roots elongation in the latter stage.And the study found that the suitable pH range for survival of M.haplaJ2 was 4-12.
【Fund】: 农业部公益性行业科研专项资助项目(201103018 200903040-03);; 国家自然科学基金资助项目(31471748)
【CateGory Index】: S432.45
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