Zobrazeno 1 - 8
of 8
pro vyhledávání: '"J. M. Ngeve"'
Publikováno v:
Journal of Phytopathology. 151:101-107
Nine cassava genotypes were grown at six representative sites in Nigeria for 3 years to study their response to cassava mosaic disease (CMD), investigate the influence of genotype x environment (G x E) interactions on their reactions to the disease,
Autor:
J. M. Ngeve
Publikováno v:
Journal of Horticultural Science. 69:1029-1034
Twenty sweet potato genotypes were evaluated for four years in seven locations representing three agro-ecological zones in Cameroon, to study their performance across environments, to identify cultivars suitable for the different zones and to study t
Autor:
J. M. Ngeve
Publikováno v:
Euphytica. :231-238
Two experiments, each involving a set of 10 sweet potato clones, were conducted for three years at 4 sites (Ekona, Ebolowa, Nkolbisson, and Bambui Plain) in Cameroon. Data obtained were subjected to analysis of variance to determine the presence of g
Autor:
J. M. Ngeve
Publikováno v:
The Journal of Agricultural Science. 117:171-176
SUMMARYTwo experiments, each involving a set of six sweet potato clones, the first set developed in sites differing in altitude, and the second in sites differing in soil type, were done at three locations in 4 years in Cameroon. Data obtained were s
Autor:
J. C. Bouwkamp, J. M. Ngeve
Publikováno v:
Experimental Agriculture. 27:221-225
SummarySweet potato virus disease (SPVD) causes strap-shaped leaves, vein-clearing, puckering, chlorosis and stunting in susceptible sweet potato varieties and yields are much reduced. To investigate the tolerance of genotypes and obtain a better app
Publikováno v:
Bulletin of entomological research. 91(6)
Laboratory and screenhouse studies were carried out to assess the relationship between pod age and pod position of cowpea and damage by different pod bug species. The coreids Clavigralla tomentosicollis Stäl and Riptortus dentipes Fabricius caused s
Autor:
V. P. Nchinda, Judith K. Brown, Anders Kvarnheden, S. Zok, W. N. Leke, D. K. Njualem, J. M. Ngeve, Z. Ngoko
Publikováno v:
Plant Pathology. 58:782-782
Autor:
J. M. Ngeve
Publikováno v:
Journal of Horticultural Science. 69:963-938
Three sites differing in soil type, vegetation and weevil pressure, were used to evaluate the field performance of 18 improved sweet potato clones and two local cultivars, and their reaction to weevils (Cylas spp.) in Cameroon. Higher yields were obt