Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Jonathan Mkumbira"'
Autor:
Aggrey J. D. Ambali, Wisdom Changadeya, Jonathan Mkumbira, Felistus Chipungu, John D.K. Saka, N.M. Mahungu
Publikováno v:
African Journal of Biotechnology. 17:531-540
Sweet potato [Ipomoea batatas) (L.) Lam] is grown by small holder farmers across a wide range of environments in Malawi. A multi-location trial of eight genotypes for three seasons at six research stations was undertaken using additive main effects a
Autor:
Aggrey J. D. Ambali, Felistus Chipungu, Wisdom Changadeya, John D.K. Saka, N.M. Mahungu, Jonathan Mkumbira
Publikováno v:
African Journal of Agricultural Research. 12:3088-3098
Characterization of landraces is central to any conservation measures devised for sweet potato in Malawi. Studies were therefore conducted using seven morphological descriptors and farmers’ indigenous knowledge systems (IKS) to investigate the phen
Autor:
Wisdom Changadeya, Jonathan Mkumbira, John D.K. Saka, N.M. Mahungu, Felistus Chipungu, Aggrey J. D. Ambali
Publikováno v:
Journal of Agricultural Biotechnology and Sustainable Development. 9:22-35
Sweet potato (Ipomoea batatas [L.] Lam) is an important root crop in Malawi and Sub-Saharan Africa where micronutrient deficiency is an eminent health problem. Using 15 sweet potato genotypes grown in a randomized complete block design at Bvumbwe Res
Autor:
Kehinde O. Moyib, Oyeronke A. Odunola, Alfred G.O. Dixon, Malachy O. Akoroda, Peter Kulakow, Jonathan Mkumbira
Publikováno v:
Crop Science. 55:2701-2711
Publikováno v:
Acta Horticulturae. :467-473
Publikováno v:
International Journal of Biotechnology and Molecular Biology Research. 3:47-56
The incidence of root rot diseases partly contribute to the currently observed low percentage increase in the yield of cassava. We estimated gene diversities and identified putative hybridizing parents for root rot resistance using 18 simple sequence
Autor:
Venâncio Alexandre Salegua, Linley Chiwona-Karltun, Cynthia Donovan, Alda Tomo, Patrick Kambewa, Mishek Nyembe, Jonathan Mkumbira, Agnes Andersson Djurfeldt, Johanna Bergman Lodin, Steven Haggblade, Klaus Droppelmann, Leon Brimer, Maureen Chitundu, Magnus Jirström, D. Nyirenda, Michael Dolislager, Michael T. Weber, Hunter Nielson, Constantino Cuambe, Emma Kambewa, Martin Chiona, Joao Mudema, N.M. Mahungu
Publikováno v:
Journal of Agribusiness in Developing and Emerging Economies. 2:4-40
PurposeCassava production surged noticeably in Southeastern Africa beginning in the 1990s. The purpose of this paper is to examine the commercial responses and food security consequences of cassava production growth in the region.Design/methodology/a
Autor:
John D.K. Saka, N.M. Mahungu, Hans Rosling, Albert R K Mhone, Lisbeth Johansson, Mpoko Bokanga, Jonathan Mkumbira, L. Brimer, Linley Chiwona-Karltun
Publikováno v:
Journal of the Science of Food and Agriculture. 84:581-590
Cassava roots contain cyanogenic glucosides. Malawian farmers classify cultivars into two groups based on the perceived danger of eating raw roots that they associate with bitterness. In the vernacular, cultivars that produce roots with bitter taste
Publikováno v:
Experimental Agriculture. 39:167-179
Cassava, a crop widely adapted in the tropics, has the important attribute of withstanding adverse environmental conditions better than do many other staple crops. The performance of an individual genotype, however, is influenced by the environment i
Autor:
Albert R K Mhone, Linley Chiwona-Karltun, Leon Brimer, Jonathan Mkumbira, Urban Gullberg, John D.K. Saka, Mpoko Bokanga, Ulf Lagercrantz, N.M. Mahungu, Hans Rosling
Publikováno v:
Euphytica. 132:7-22
Cassava roots, a major food in Africa, contain cyanogenic glucosides that may cause toxic effects. Malawian women farmers considered fields of seemingly similar cassava plants to be mixes of both ‘cool’ and ‘bitter’ cultivars. They regard roo