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Presents results of a study undertaken at Magogo, Kenya, to analyse genetic and phenotypic correlations between adjacent weights, between weights and rates of growth, and among growth rates themselves, hence data on 969 lambs collected over a 10-year period (1978-1987) on Dorper sheep were used i...


Inyangala, B.A.O.Rege, J.E.O.Itulya, S.[Growth traits of the Dorper sheep. II. Genetic and phenotypic parameters]Growth traits of the Dorper sheep. II. Genetic and phenotypic parameters

Studies the effectiveness of the blood grouping technique for parentage identification of cattle at the Mvuazi research station, Bas-Zaire, Zaire.


Thorpe, W.R.D'Ieteren, G.D.M.Feron, A.Mundia, M.Ross, D.Sheria, M.Spooner, R.L.Trail, J.C.M.[Practical possibilities of blood grouping for parentage information: A pilot study in Zaire]Practical possibilities of blood grouping for parentage information: A pilot study in Zaire
Abebe, AmareBrick, Mark A.Ogg, J. BarryKirkby, Roger A.[Heritability of traits associated with dry bean seed yield]Heritability of traits associated with dry bean seed yield

Records on birth weight and pre-weaning growth of 3959 Boran calves, which were progeny of 51 sires and 979 dams, were analysed by least-squares analysis of variance. The vaiance components for sires, dams and maternal grandsires were estimated from the data. On the basis of assumed genetic corre...


Arnason, T.Kassa-Mersha, H.[Genetic parameters of growth of Ethiopian Boran cattle]Genetic parameters of growth of Ethiopian Boran cattle

Total of 8909 birth weight and 7740 weaning weight records, from the progeny of 215 sires, collected from 1943 to 1990 from the Elsenburg Dormer sheep stud, were analysed. Additive genetic variance and heritability estimates for birth weight (BW), weaning weight (WW), average daily gain (ADG) and...


Wyk, J.B. vanErasmus, G.J.Konstantinov, K.V.[Variance component and heritability estimates of early growth traits in the Elsenburg Dormer sheep stud]Variance component and heritability estimates of early growth traits in the Elsenburg Dormer sheep stud

The magnitude of genetic expression and associations among traits are important for the prediction of response to selection in diverse environments and provide the basis for planning and evaluating breeding programs. In this regard, a cross classification mating design was used to produce hybrid ...


Kenga, R.Tenkouano, A.Gupta, S.C.Alabi, S.O.[Genetic and phenotypic association between yield components in hybrid sorghum (Sorghum bicolor (L.) Moench) populations]Genetic and phenotypic association between yield components in hybrid sorghum (Sorghum bicolor (L.) Moench) populations

Storage root dry matter content (RDM) is central to the improvement of consumer and industrial attributes of root crops. Yam bean (Pachyrhizus species) is a legume root crop newly introduced in Uganda, but its adoption may be constrained by low RDM. The objective of this study was to investigate ...


Agaba, R.Tukamuhabwa, PhinehasRubaihayo, P.R.Mwanga, R.O.M.Ssenyonjo, A.Ndirigwe, J.Tumwegamire, SilverGruneberg, W.J.[Heritability, combining ability and inheritance of storage root dry matter in yam beans]Heritability, combining ability and inheritance of storage root dry matter in yam beans

The success of most crop improvement programs largely depends upon the genetic variability and the heritability of desirable traits. The magnitude and type of genetic variability help the breeder to determine the selection criteria and breeding schemes to be used for improvement purposes. A scree...


Omoigui, L.O.Ishiyaku, M.F.Kamara, A.Y.Alabi, S.O.Mohammed, S.G.[Genetic variability and heritability studies of some reproductive traits in cowpea (Vigna unguiculata (L.) Walp.)]Genetic variability and heritability studies of some reproductive traits in cowpea (Vigna unguiculata (L.) Walp.)
Autor: Ortiz, R.

Musa cultivars (bananas and plantains) are important crops in the humid tropics of Africa, America and Asia. This paper reports the extent of morphological variation of the Musa germplasm maintained in the gene-bank of the International Institute of Tropical Agriculture in southeastern Nigeria. Q...


Ortiz, R.[Morphological variation in Musa germplasm]Morphological variation in Musa germplasm

Objective: Cassava is a crop with largely unexplored and unexplained potentially valuable genetic variability. This study aimed to investigate interrelationship between factors that control cassava yield. Methodology and results: Fourteen quantitative characteristics were assessed in ten cassava ...


Ntawuruhunga, PheneasDixon, Alfred G.O.[Quantitative variation and interrelationship between factors influencing cassava yield]Quantitative variation and interrelationship between factors influencing cassava yield

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