A randomised complete block experiment was conducted in the 1998 and 1999 cropping seasons in five major yam growing areas in the yam belt of Nigeria to evaluate the performance and yield stability of six genotypes of water yarn (Dioscorea alata L). Location, genotype and their interaction effect...
Egesi, Chiedozie N.
,
Ogunyemi, S.
,
Asiedu, Robert
,
[Genotype x environment interaction in water yam (Dioscorea alata) yield trials in five yamgrowing sites in Nigeria]
,
Genotype x environment interaction in water yam (Dioscorea alata) yield trials in five yamgrowing sites in Nigeria
The distribution and frequency of single nucleotide polymorphisms (SNPs) is an excellent tool for discerning evolutionary relatedness between cultivated and wild plant genomes. This type of information is scanty for the genus Manihot, and thus limiting systematic approaches in the genetic improve...
Beyene, D.
,
Mukasa, S.B.
,
Jansson, C.
,
Villiers, Etienne P. de
,
Ferguson, M.
,
Rabbi, Ismail Y.
,
Kyamanywa, S.
,
Sebuliba, J.
,
Baguma, Yona K.
,
[Patterns on nucleotide diversity in Meisa1 and G3PHD in wild and cultivated cassava]
,
Patterns on nucleotide diversity in Meisa1 and G3PHD in wild and cultivated cassava
Alamu, E.O.
,
Maziya-Dixon, B.B.
,
Felde, T. zum
,
Kulakow, P.A.
,
Parkes, E.
,
Adesokan, M.
,
[Application of Near Infra-red Reflectance Spectroscopy (NIRS) in screening of fresh cassava (Manihot esculenta) storage roots for provitamin A carotenoids]
,
Application of Near Infra-red Reflectance Spectroscopy (NIRS) in screening of fresh cassava (Manihot esculenta) storage roots for provitamin A carotenoids
Ninety-eight cassava accessions were grown in augmented randomized complete block design to screen for superior clones with desirable traits. The desirable traits were root number (RTNO), fresh root yield (FYLD), harvest index (HI), dry matter (DM), cyanide potential (CNP), mean plant height (MPH...
Asante, I.K.
,
Dixon, Alfred G.O.
,
[Field screening of cassava (Manihot esculenta Crantz) germplasm for desirable traits by the use of augmented design]
,
Field screening of cassava (Manihot esculenta Crantz) germplasm for desirable traits by the use of augmented design
A total of 436 African landraces and 497 improved cassava genotypes were planted in 1996, 1997, 1998 and 1999 growing seasons.. These were evaluated for their reactions to cassava anthracnose disease (CAD) under natural infection conditions at Ibadan (a high infection zone). The severity of the d...
Owolade, O.
,
Dixon, A.
,
Adeoti, A.
,
Osunlaja, S.
,
[Sources of resistance to cassava anthracnose disease]
,
Sources of resistance to cassava anthracnose disease
The moist savannas of West and Central Africa have great potential for maize grain production due to high levels of radiation and reduced incidence of pests and diseases. However, soils in this zone are generally low in organic matter and cation exchange capacity in addition to land use intensifi...
Ajala, S.O.
,
Menkir, A.
,
Kamara, A.Y.
,
Alabi, S.O.
,
Abdulai, M.S.
,
[Breeding strategies to improve maize for adaptation to low soil nitrogen in West and Central Africa]
,
Breeding strategies to improve maize for adaptation to low soil nitrogen in West and Central Africa
Snap bean (Phaseolus vulgaris L.) is an important export vegetable crop, produced mainly by small to medium scale farmers under various disease constraints. Disease resistant varieties can reduce reliance on fungicides, and enhance the capacities of smallholder farmers to meet the stringent Europ...
Wahome, S.W.
,
Kimani, P.M.
,
Muthomi, J.W.
,
Narla, R.D.
,
Buruchara, Robin A.
,
[Multiple disease resistance in snap bean genotypes in Kenya]
,
Multiple disease resistance in snap bean genotypes in Kenya
Eleven Musa genotypes comprising ten hybrids and one local check were grown for two cropping cycles (plant crop and ratoon crop) in a sub-humid location of southeastern Nigeria. Flour was processed from unripe fruits harvested thereof. Proximate qualities and antinutrient factors were determined ...
Baiyeri, K.P.
,
Tenkouano, A.
,
[Genetic and cropping cycle effects on proximate composition and antinutrient contents of flour made from eleven Musa genotypes]
,
Genetic and cropping cycle effects on proximate composition and antinutrient contents of flour made from eleven Musa genotypes
Studies were made to identify sources of resistance to yam viruses in Dioscorea alata. Forty genotypes of D. alata were evaluated in both the field and in the screenhouse for reactions to the yam viruses: Yam mosaic virus (YMV), genus Potyvirus; Dioscorea alata virus (DAV), genus Potyvirus; Cucum...
Odu, B.O.
,
Asiedu, Robert
,
Shoyinka, S.A.
,
Hughes, J.A.
,
[Screening of water yam (Dioscorea alata L.) genotypes for reactions to viruses in Nigeria]
,
Screening of water yam (Dioscorea alata L.) genotypes for reactions to viruses in Nigeria
Akano, A.O.
,
Atiri, G.
,
Ng, S.Y.C.
,
Asiedu, Robert
,
[Effect of African cassava mosaic disease on growth and yield components of virustested cassava genotypes derived from meristem culture in early and late planting periods in three agroecologies of Nigeria]
,
Effect of African cassava mosaic disease on growth and yield components of virustested cassava genotypes derived from meristem culture in early and late planting periods in three agroecologies of Nigeria