Browsing by Title
Now showing items 2054-2073 of 20228
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Breeding investigations for resistance to Phaeosphaeria Leaf Spot (PLS) and other important foliar diseases and a study of yield stability in African maize germplasm.
(2009)Maize (Zea mays L.) yields in the smallholder (SH) farming sector in Southern Africa have remained low. despite the availability of many improved varieties. Among the major constraints contributing to tow yields and ... -
Breeding investigations for salt tolerance in rice incorporating characterisation of salt affected soils and farmers perceptions and preferences for tolerant cultivars in north-eastern Tanzania.
(2010)Rice (Oryza sativa L.) is the principal crop of North Eastern Tanzania but production is threatened by salt affected soils, drought and the use of un-adapted cultivars, among other constraints. Little research and hardly ... -
Breeding investigations of finger millet characteristics including blast disease and striga resistance in Western Kenya.
(2008)Finger millet (Eleusine coracana (L.) Gaertn. ssp. coracana) is an important food, food security and cash crop in eastern and southern Africa where small-scale farmers grow it in low input farming systems. The crop has ... -
Breeding investigations of maize (Zea mays L.) genotypes for tolerance to low nitrogen and drought in Zambia.
(2007)Low soil nitrogen (N) and drought impede maize production in the small-scale farming sector in Zambia; and adoption of new cultivars with improved tolerance might enhance production. This study: a) assessed farmer ... -
Breeding investigations on utility of maize streak virus resistant germplasm for hybrid development in the tropics.
(2014)Maize (Zea mays L.) supports millions of livelihoods in sub-Saharan Africa (SSA) in terms of food and feed. Production of the crop is however limited by several factors, among these, maize streak virus (MSV) disease. ... -
Breeding maize for resistance to the fall armyworm (Spodoptera Frugiperda J.E. Smith), improved yield and yield-related traits.
(2020)Maize production and productivity in sub-Sub-Saharan Africa (SSA), including Zambia, has been severely threatened by the recent arrival of the fall armyworm (FAW) (Spodoptera frugiperda J.E. Smith). Several strategies have ... -
Breeding of advanced generation of Eucalyptus macarthurii-growth parameters and development of a near infrared (NIR) calibration model to predict whole tree pulp yield using non destructive cores.
(2008)Eucalyptus macarthurii is one of the cold tolerant eucalypt species grown in South Africa for pulp and paper. However, little research has been done on this species’ growth performance. A study was therefore initiated ... -
Breeding of sweet potato (Ipomoea batatas (L.) Lam.) for storage root yield and resistance to Alternaria leaf petiole and stem blight (Alternaria spp.) in Uganda.
(2013)Alternaria leaf petiole and stem blight is an important disease of sweetpotato (Ipomoea batatas (L.) Lam.) causing yield losses in both landraces and improved cultivars. The most important species causing economic yield ... -
Breeding of sweetpotato (Ipomoea batatas (L.) Lam) for drought tolerance and high dry matter content in Rwanda.
(2015)Sweetpotato is the third most important root crop next to cassava and potato in Rwanda. Drought stress remains the leading abiotic constraint to sweetpotato production in the Southern and Eastern Provinces of the country. ... -
Breeding of sweetpotato for improvement of root dry matter and β-carotene contents in Ethiopia.
(2015)Sweetpotato [Ipomoea batatas (L.) Lam] is the second major crop among the root and tuber crops in Ethiopia contributing to food and nutrition security. Especially, the orange fleshed sweetpotato (OFSP) is a low-priced ... -
Breeding potato (Solanum tuberosum L.) for high yield and resistance to late blight in Rwanda.
(2014)Potato (Solanum tuberosum L.) is one of the most important food crops in the world, and in developing countries its production has increased over the last decade. Potato has a high content of carbohydrates as a source ... -
Breeding Sorghum [Sorghum bicolor (L.) Moench] for drought tolerance and medium-maturity.
(2017)Abstract available in PDF file. -
Breeding sweetpotato (Ipomoea batatas [L.] Lam.) for drought tolerance in Kenya.
(2013)Sweetpotato (Ipomoea batatas (L.) Lam.) is an important food crop in East Africa including Kenya. The crop incurs high yield losses in production due to biotic (insect pests and diseases) and abiotic (drought, and heat) ... -
Breeding sweetpotato for improved yield and related traits and resistance to sweetpotato virus disease in Eastern Tanzania.
(2015)Sweetpotato production contributes significantly to food security and incomes of subsistence farmers in Tanzania. However, productivity of the crop is constrained by several biotic, abiotic and socio-economic factors. ... -
The breeding system and demography of the Transvaal Sesame-bush, Sesamothamnus lugardii (Pedaliaceae)
(2019)The aim of this research was to assess the breeding system, pollination relationship and demography of the Transvaal Sesame-bush, Sesamothamnus lugardii N. E. Br. Ex Stapf. (Pedaliaceae). S. lugardii is an arid savanna ... -
Breeding systems of some cold tolerant eucalyptus species.
(2002)Seasonal flowering times for Eucalyptus nitens, E. dunnii, E. smithii, E. macarthurii and E. grandis were evaluated in clonal grafted orchards located at the Shaw Research Centre (SRC) in KwaZulu-Natal, South Africa. ... -
Breeding tef [Eragrostis tef (Zucc.) trotter] for drought tolerance in Northern Ethiopia.
(2016)Tef is the leading crop in Ethiopia for human food and animal feed. Worldwide tef is becoming a popular health food due to its gluten-free property. Productivity of tef is low in Ethiopia, with a mean of 1.6 t haˉ¹, which ... -
Breeding wheat (triticum aestivum L.) for drought tolerance, improved yield and biomass allocation through chemical mutagenesis.
(2020)Abstract available in PDF.