Silicon deficiency limits rice (Oryza sativa L.) yield on highly weathered upland soils in West Africa and can increase susceptibility to some diseases. A study at Onne, Nigeria, examined responses of different genotypes to increasing Si supply under upland cultural conditions. Without applied Si...
Winslow, M.
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[Silicon disease resistance, and yield of rice genotypes under upland cultural conditions]
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Silicon disease resistance, and yield of rice genotypes under upland cultural conditions
Five maize genotypes differing in plant habit and growth period were evaluated at 5 population densities (10, 20, 40, 80 and 160 × 103 plants/ha) under an intercropping system with cassava at 1 × 1 or 1 × 0.67 m spacings in a tropical Alfisol in southern Nigeria. The 2-year study revealed signifi...
The study investigated the chemical, pasting and sensory properties of tapioca grits produced from wet starches from 39 different cassava varieties (36 varieties resistant to cassava mosaic disease [CMD] and three checks TMS 30572, 4(2) 1425 and 82/00058) planted in June 2004/2005 at the experime...
Cassava is widely consumed in Africa where malnutrition is rampant; there is, therefore, a major effort to produce micronutrient biofortified cassava. Adoption of such cassava genotypes will largely depend on their agronomic performance, resistance to biotic stresses, and the stability of these t...
Ssemakula, G.N.
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Dixon, A.
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[Genotype X environment interaction, stability and agronomic performance of carotenoid-rich cassava clones]
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Genotype X environment interaction, stability and agronomic performance of carotenoid-rich cassava clones
Reproductive growth in polyarchic Musa spp. varieties occurs by the simultaneous growth of several shoots, resulting in competitive inhibition of fruit development in the individual shoots, particularly under poor soil fertility conditions. Nine plantain genotypes were forced into single-culm gro...
Tenkouano, A.
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Vuylsteke, D.R.
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Swennen, R.
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[Sink competition and desuckering effects on field performance of triploid and tetraploid plantain genotypes]
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Sink competition and desuckering effects on field performance of triploid and tetraploid plantain genotypes
Previous work suggests that some sweet potato (Ipomoea batatas, L.) cultivars can produce high storage root yields on soils without fertilizer N addition. This study was conducted to compare storage root yields, total biomass, N uptake and fibrous root weights of sweet potato cultivars grown on l...
Hill, W.
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Dodo, H.
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Hahn, S.
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Mulongoy, K.
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Adeyeye, S.
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[Sweet potato root and biomass production with and without nitrogen fertilization]
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Sweet potato root and biomass production with and without nitrogen fertilization
Although numerous studies of diversity have been conducted in cassava, there is no comprehensive assessment of global genetic diversity. Here we draw on previous studies and breeders’ knowledge to select diversity sets from the International Institute of Tropical Agriculture (IITA) and the Intern...
Ferguson, Morag E.
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Shah, Trushar
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Kulakow, Peter
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Ceballos, Hernan
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[A global overview of cassava genetic diversity]
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A global overview of cassava genetic diversity
Twenty-five cowpea (Vigna unguiculata L) genotypes were evaluated across six contrasting environments for phenotypic yield stability. Combined analysis of variance revealed significant differences among the genotypes and the main effects. A1B×D, BC×M, L1B×M, A1B×M, and BA×I were the best performi...
Ngalamu, T.
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Meseka, S.
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Ifie, B.E.
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Ofori, K.
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Eleblu, J.S.Y.
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[Analysis of phenotypic stability in 25 cowpea genotypes across six environments]
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Analysis of phenotypic stability in 25 cowpea genotypes across six environments
Banana cultivars are derived from hybridizations involving Musa acuminata subspecies. The latter diverged following geographical isolation in distinct South-east Asian continental regions and islands. Observation of chromosome pairing irregularities in meiosis of hybrids between these subspecies ...
Dupouy, M.
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Baurens, F.C.
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Derouault, P.
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Hervouet, C.
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Cardi, C.
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Cruaud, C.
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Istace, B.
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Labadie, K.
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Guiougou, C.
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Toubi, L.
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Salmon, F.
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Mournet, P.
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Rouard, M.
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Yahiaoui, N.
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Lemainque, A.
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Martin, G.
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D'Hont, A.
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[Two large reciprocal translocations characterized in the disease resistance-rich burmannica genetic group of Musa acuminata.]
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Two large reciprocal translocations characterized in the disease resistance-rich burmannica genetic group of Musa acuminata.
Mengistu, D.K.
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Kiros, A.
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Mohammed, J.
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Tsehaye, Y.
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Fadda, Carlo
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[Exploitation of diversity within farmers' durum wheat varieties enhanced the chance of selecting productive, stable and adaptable new varieties to the local climatic conditions]
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Exploitation of diversity within farmers' durum wheat varieties enhanced the chance of selecting productive, stable and adaptable new varieties to the local climatic conditions