Effects of cover plants on root-knot nematode population
1984
Atu, U.G. (National Root Crops Research Institute, Umudike (Nigeria)) | Ogbuji, R.O. (University of Nigeria, Nsukka)
In areas where yam is the first crop in a rotation after fallow, it makes sense to manage the fallow lands so that the soil is not only fertile enough to support yam but also free from the pests affecting the crop. Recognizing this, we evaluated 14 cover plants commonly fertile found or grown in fallow in southern Nigeria for their resistance to root-knot nematode, Meloidogyne incognita. In glasshouse and field experiments, Crotolaria retusa, Arachis hypogaea, Stylosanthes gracilis, Tagetes patula, and T. erecta were highly resistant; Centrosema sp., Panicum maximum, Eupatorium odoratum, and Aspilia latifolia were resistant; and Calopogonium sp., Pueraria sp., Cajanus cajan, Vigna unguiculata, and Cynodon dactylon were susceptible.
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