Research Papers/Topics in Plant Breeding

Pattern of Genetic Variability in Nsukka Yellow Pepper (Capsicum Annuum L.) Genotypes

ABSTRACT  Nsukka yellow pepper genotypes were evaluated in 2009 and 2010 planting seasons to determine the pattern of genetic variability in its population. The initial collection comprising eighteen genotypes were assembled from the local farmers and evaluated in 2009 planting season. Forty nine promising genotypes were selected on individual plant basis and reevaluated in 2010 planting season. The results of the performance of the genotypes in both years showed that there was considerable ...

Improvement of Selected Okra (Abelmoschus Spp.) Varieties for Fruit Yield and Productivity

ABSTRACT Four field experiments were conducted at the Teaching and Research Farm of the Department of Crop Science, University of Nigeria, Nsukka to: (i) improve the photoperiodic response, especially in local (late) maturing varieties of Okra; (ii) estimate heterosis and heritability for improved yield and productivity; (iii) determine combining ability and gene effects of 13 genotypes of okra; (iv) estimate gene effects of quantitative traits; (v) determine inheritance pattern of qualitativ...

Stability And Genotype By Environment Analysis For Quality, Yield And Yield Components Of Soybean [Glycine Max (L.)] Lines

ABSTRACT Soybean [Glycine max (L.) Merrill.] Breeders’ prefer genotypes with high grain yield along with high oil and protein content. Soybean in Kenya is important in the manufacture of feed, food and natural resource management. Availability of high yielding and stable varieties is among the constraints that limit adoption and production of soybean in Kenya. The objectives of the study were to determine the performance of fifteen soybean genotypes in five environments, the broad sense her...

Genetic Control And Breeding For Seed Size And Colour In Cowpea [Vigna Unguiculata (L.) Walp]

ABSTRACT Consumer preference is very important in acceptance of an improved crop variety. Participatory rural appraisal (PRA) was therefore conducted on preferred traits of cowpea [Vigna unguiculata (L) Walp] among Ghanaian consumers in Ketu North, Ho and Akatsi districts. It was confirmed that the age long preference for large white cowpea among Ghanaian consumers still exists. Based on the results of the PRA, cowpea germplasm was assembled and used in genetic studies on seed coat colour and...