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Now showing items 5580-5599 of 13633
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Genetic diversity of Oryza species in Niger ; screening and breeding for resistance to rice yellow mottle virus (RYMV)
(2012)Rice is a staple food in many West African countries, including Niger. However, both regional and national rice production have failed to meet demand due to several constraints, among which is the Rice yellow mottle virus ... -
Genetic diversity of proprietary inbred lines of sunflower, determined by mapped SSR markers and total protein analysis.
(2008)This study compared DNA based SSR markers with total seed protein markers, used to evaluate genetic diversity of sunflower. The multiplex-ability, cost effectiveness and applicability of microsatellites as molecular markers ... -
Genetic diversity of symbiodinium in selected corals in the Western Indian Ocean.
(2007)Coastal communities along the east African coastline rely on coral reefs and their associated resources for food security and income. However, increases in the frequency and severity of episodes of coral bleaching have ... -
Genetic diversity of the Chaerephon leucogaster/pumilus complex from mainland Africa and the western Indian Ocean islands.
(2014-09-11)Chaerephon (Dobson, 1874), an Old World genus belonging to the family Molossidae, is part of the suborder Vespertilioniformes. Members of this genus are distributed across mainland Africa (sample sites; Tanzania, Yemen, ... -
Genetic diversity of the Rattus complex (Rodentia: Muridae) in KwaZulu-Natal.
(2010)The rodent genus Rattus is considered to be the single largest genus of mammals in the world. One species of Rattus is usually more dominant than another within a specific geographical area; however within the province ... -
Genetic diversity, correlations and path coefficient analysis in popcorn (Zea mays L. everta)
(2013-11-15)Popcorn is the most popular snack food in the world. Genetic diversity is of major concern in popcorn breeding. High genetic diversity allows manipulation of different genotypes to breed new varieties. There is very little ... -
Genetic diversity, stability, and combining ability of maize genotypes for grain yield and resistance to NCLB in the mid-altitude sub-humid agro ecologies of Ethiopia.
(2013)Maize (Zea mays L.) is the third most important cereal crops in the world after wheat and rice. In Ethiopia, maize remains the second largest food security crop after tef [Eragrostis tef (Zucc.) Trotter.]. The mid-altitude, ... -
Genetic effects and associations between grain yield potential, stress tolerance and yield stability in southern African maize (Zea mays L.) base germplasm.
(2005)Maize (Zea mays L.) is the principal crop of Southern Africa but production is threatened by gray leaf spot (Cercospora zea-maydis L.) and phaeosphaeria leaf spot (Phaeosphaeria maydis L.) diseases, drought and the use of ... -
Genetic evaluation of South African indigenous chickens for disease resistance.
(2015)An alternative standard disease control method would be selective breeding in order to increase disease resistance. To set up marker assisted selection programmes, knowledge of the genetic diversity of the chickens is ... -
Genetic gain, advanced cycle pedigree breeding and correlated response to selection under varying moisture conditions in sunflower.
(2014-06-04)Sunflower (Helianthus annuus L.) is one of the most important oil crops in South Africa and genetic improvement for grain yield and oil-content was initiated in the country in the early 1970s. Commercial production of ... -
Genetic identification of kikuyu grass (Pennisetum clandestinum) cultivars by RAPD and ISSR techniques.
(2015)Kikuyu grass (Pennisetum clandestinum), originally from tropical and subtropical African countries, is one of the most important pasture grasses in the higher rainfall regions of South Africa (of utmost importance in ... -
Genetic Improvement of pigeonpea (Cajanus cajan (L.) Millsp.) for Fusarium wilt resistance in Tanzania.
(2016)Abstract available in PDF file. -
Genetic improvement of Zambian maize (Zea mays L.) populations for resistance to ear rots and a survey of associated mycotoxins.
(2009)Maize ear rots are among the most important impediments to increased maize production in Africa. Besides yield loss, they produce mycotoxins in their host whose contamination has been linked to several human and animal ... -
Genetic manipulation of saccharomyces cerevisiae for improved ethanol production from d-xylose.
(1999)No abstract available. -
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Genetic modification in Pinus patula using transgenic technology.
(2006)Progress in tree biotechnology initially trailed behind agricultural crops due to their long life cycle, difficult tissue culture and regeneration protocols, and their abundance in natural forests. However, rapid global ... -
Genetic population structure of deep-water prawns Haliporoides triarthrus and langoustines Metanephrops mozambicus in the South West Indian Ocean : use of mitochondrial DNA to investigate metapopulation structure.
(2014-09-11)Deep-water prawns Haliporoides triarthrus and langoustines Metanephrops mozambicus are endemic to the South West Indian Ocean (SWIO) region and make up the largest proportion of deep-water crustacean trawl catches in ... -
Genetic studies and recurrent selection for nematode resistance in maize.
(2014-11-18)Plant-parasitic nematodes cause grain yield loss in maize. The most important genera of plant-parasitic nematodes demonstrated to be of economic importance to maize are Pratylenchus spp., Meloidogyne spp. and Heterodera ... -
Genetic studies of grain and morphological traits in early generation crosses of Malawi rice (Oryza sativa L.) Landraces and NERICA varieties.
(2010)Rice (Oryza sativa L.) is the second most important cereal crop in Malawi. Rice productivity in the dominant (85%) rainfed ecosystem is very low, with mean yield of only 1.4 t ha-1. Farmers plant traditional landraces that ... -
Genetic studies of quantitative and quality traits in rice under low and high soil nitrogen and phosphorous conditions, and a survey of farmer preferences for varieties.
(2010)Rice is an important crop ranking third after maize and wheat in Kenya. Its demand is growing at 12% per annum, while production has stagnated for quite a number of years. This situation has lead to consumption outstripping ...
