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Reference Report for SoyBase31098905
Title:Susceptibility of some Australian acacias to the root-knot nematode Meloidogyne javanica
Authors:Duponnois, R., Cadet, P., Senghor, K., Sougoufara, B.
Source:Ann. Sci. Forest. 1997, 54(2):181-190
Abstract:The susceptibility of seven Australian acacias (Acacia hilliana, A. holosericea, A. lysiphloia, A. mangium, A. sclerosperma, A. trachycarpa and A. tumida) to the root-knot nematode Meloidogyne javanica was studied in Senegal with different rates of nematode inoculums (100, 500 and 1000 juveniles per pot). All these Acacia species were susceptible to the root-knot nematode. A. sclerosperma, A. hilliana, A. holosericea and A. mangium provided better hosts for M. javanica than A. trachycarpa, A. tumida and A. lysiphloia. The root-knot nematode only inhibited the development of A. holosericea, and stimulated the growth of A. tumida. A negative effect of the nematode on nitrogen fixation was observed for A. mangium and A. holosericea but, on the contrary, M. javanica stimulated this symbiosis with A. tumida and A. hilliana. For these two species, it was calculated that 1 mg dry weight of nodule induced 98 and 88 mg of shoot dry weight, respectively.






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