Interaction of arbuscular mycorrhizal fungi and different levels of root-knot nematode on ginger
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SAMPAT NEHRA, SONALI PANDEY and P.C. TRIVEDI
Keywords:
Glomus fasciculatum, Glomus mosseae, Cenchrus, onion, Meloidogyne incognitaAbstract
Ginger (Zingiber officinale Rose.) is the most important and the earliest spice grown in India. During 1993-94 India earned about Rs. 540 crores through export of 175, 532 MT of different spice and spice products respectively. The root-knot nematode,Meloidogyne incognita is widely distributed in ginger fields and causes a loss of 46.6 percent in India and artificial inoculation caused 74 percent reduction in rhizome weight. It produces galls on the root of many host plants, causing tremendous losses. G. fasciculatum colonization reduced the root-knot infestation on tomato plants infected by M. incognita. The role of arbuscular mycorrhizal fungi (AMF) in reducing nematode population in ginger has been studied in the present investigation.
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