Résultat de la recherche
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'VIGNA UNGUICULATA' 
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ouvrage
thèse/mémoire
thèse/mémoire
thèse/mémoire
thèse/mémoire
article/chapitre/communication
G. Myers ; C. Fatokun ; N. Young | 1996Restriction fragment length polymorphism (RFLP) analysis has several advantages over traditional methods of genetic linkage mapping, one of these being the starting point for map-based cloning. The recent development of an RFLP map of cowpea (Vi[...]
article/chapitre/communication
A. Moshy ; T. Leigh ; K. Foster ; F. Schreiber | 1983
article/chapitre/communication
I. Annan ; K. Ampongnyarko ; W. Tingey ; G. Schaefers | 1997Field and greenhouse studies were conducted in 1990 and 1991, to assess the effects of fertilizer application on the bionomics and population dynamics of cowpea aphid, Alphis craccivora Koch, and on the growth and yield of cowpea, Vigna unguicul[...]
article/chapitre/communication
I. Annan ; W. Tingey ; G. Schaefers | 1997Survivorship, growth, and reproductive performance of cowpea aphid, aphis craccivora Koch, were studied on whole plants and excised plant tissues of aphid-resistant ('ICV-12') and aphid-susceptible ('ICV-1') cultivars of cowpea, Vigna unguiculat[...]
article/chapitre/communication
I. Annan ; G. Schaefers ; W. Tingey ; W. Tjallingii | 1997Electrical penetration graph recordings using direct current (DC-EPGs) were used to analyze aspects of the probing behavior of cowpea aphid, Aphis craccivora Koch, on intact plants and on hexane, ethyl acetate, and methanol extracts of leaves of[...]
article/chapitre/communication
I. Annan ; W. Tingey ; G. Schaefers ; W. Tjallingii ; E. Backus ; K. Saxena | 2000Direct current electrical penetration graphs (DC-EPGs) were used to analyze the styler penetration activities of cowpea aphid, Aphis craccivora Koch, on plants of aphid-resistant (ICV-12) and aphid-susceptible (ICV-1) cultivars of cowpea, Vigna [...]
article/chapitre/communication
I. Annan ; G. Schaefers ; W. Tingey | 1995The influence of duration of infestation by cowpea aphid Aphis craccivora Koch on aphid-resistant (ICV-12) and aphid-susceptible (ICV-I) cultivars of cowpea Vign?a unguiculata (L.) Walp, were compared to uninfested controls. Five apterous adult [...]
article/chapitre/communication
I. Annan ; W. Tingey ; G. Schaefers ; K. Saxena | 1996Membrane feeding studies were conducted to determine the effects of raw juices and chemical extracts of leaves of aphid-resistant (ICV-12) and aphid-susceptible (ICV-1) cultivars of cowpea [Vigna unguciculata L. (Walp.)], on the survival, growth[...]
ouvrage
B. Singh, - Editeur scientifique ; D. Mohan Raj, - Editeur scientifique ; K. Dashiell, - Editeur scientifique ; L. Jackai, - Editeur scientifique | Ibadan [NGA] : International Institute of Tropical Agriculture | 1997
congrès/colloque
D. Rijks, - Editeur scientifique ; National météorological Service (BEN) ; G. Mathys, - Editeur scientifique ; IITA International Institute for Tropical Agriculture (BEN) ; WMO World météorological Organisation, Genève (CHE) ; Seminar (1986/07/07-11; Cotonou, BEN) | Genève [CHE] : WMO World Meteorological Organization | 1987
