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Tanzania is the fifth largest producer of cassava in Africa, the eighth largest producer in the world with an estimated average yields of about 10.4 t/ha, which is far below the potential yield of the crop. The low yield is caused by a number of factors including susceptibility of commonly grown ...
The first part of the paper describes embryo transfer in detail. The ILRAD herd of N'Damas has been increased using embryo transfer. The ILRAD experiment requiring the majority of the embryo transfer work is a project to locate the genes responsible for trypanotolerance in the N'Dama. Two generat...
Plantains have long been a traditional staple food in many countries in West and Central Africa WCA). Similarly, the highland banana has been and still is a major food crop in Eastern and Southern Africa (ESA). However, the black sigatoka leaf spot disease epidemic, which reached ESA in the late ...
Striga hermonthica is a major constraint to increased maize production and productivity in the savannas of West and Central Africa OVCA. The IITA-WECAMAN Maize Program has developed two extra-early source populations and several extra-early varieties, synthetics and inbred lines with resistance/t...
Striga hermonthica est une contrainte maieure i l'augmentation de laproduction et de la productivite du mais dans les savanes d'AfriqLrede l'ouest et du Centre (AOC). Deux populations sources de maturitdpr6coce et deux autres de maturit6 extra-pr6coce, des synthetiques et des lignees dotdes de re...
A three-way collaboration in cassava varietal improvement and dissemination was established in 1982, in which a development-oriented private corporation (Umas Jaya Farm in Lampung, Sumatra of Great Giant Pineapple Coy of Gunung Sewu Group) provided ample facilities for varietal selection, multipl...
The success or failure of any large-scale crop breeding program should be measured by achievement of the following step-by-step goals: 1) Establishment of a breeding program 2) Building of effective research capability 3) A large number of genotypes produced and evaluated 4) Selection of superior...
In Thailand cassava breeding is the responsibility of the Rayong Field Crops Research Center of the Department of Agriculture (DOA), and of Kasetsart University (KU). From 1975 to 1992, six cultivars have been released for industrial use, i.e. Rayong 1, Rayong 3, Rayong 60, Rayong 90, Sri Racha 1...
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