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Aspergillus flavus induced ear rots and subsequent contamination of maize (Zea mays L.) by aflatoxin is a serious food safety issue, especially in developing countries where the crop is mostly cultivated by smallholder famers for own consumption and income generation. A better understanding of th...


Garrido-Bazan, V.Mahuku, George S.Bibbins-Martinez, M.Arroyo-Bacerra, A.Villalobos-López, M.A.[Dissection of mechanisms of resistance to Aspergillus flavus and aflatoxin using tropical maize germplasm]Dissection of mechanisms of resistance to Aspergillus flavus and aflatoxin using tropical maize germplasm

Two shaving methods, one by using a sharp razor blade and the other a small pair of dissecting scissors, were tested on pods of Vigna vexillata accessions to investigate the effect of trichomes on feeding and development of the pod-bug Clavigralla tomentosicollis Stål (Hemiptera: Coreidae). Elect...


Koona, P.Jackai, L.E.N.[The potential of podshaving in studies of the role of trichomes in Vigna resistance to the podbug Clavigralla tomentosicollis Stal (Hemiptera: Coreidae)]The potential of podshaving in studies of the role of trichomes in Vigna resistance to the podbug Clavigralla tomentosicollis Stal (Hemiptera: Coreidae)
Ongom, PONkalubo, Stanley T.Gibson, PTMukankusi, Clare MugishaRubaihayo, P.R.[Evaluating genetic association between Fusarium and Pythium root rots resistances in the bean genotype RWR 719]Evaluating genetic association between Fusarium and Pythium root rots resistances in the bean genotype RWR 719

Aspects of snap bean genetic improvement at CIAT are briefly analyzed. They include plant cycle and yield, strategies and methods for improvement, segregating population management, and description of characters to be evaluated. Data on the climbing and bush germplasm selected for the germplasm b...

Se analizan brevemente aspectos del mejoramiento genetico de la habichuela en CIAT como periodo vegetativo y rendimiento, estrategias y metodos de mejoramiento, manejo de poblaciones segregantes y descripcion de caracteres a evaluar. Se incluyen datos sobre el germoplasma voluble y arbustivo sele...


Montes de oca b., G.[Mejoramiento genetico de la habichuela en el CIAT y resultados de viveros internacionales]Mejoramiento genetico de la habichuela en el CIAT y resultados de viveros internacionales

Damage caused to snap bean by rust, angular leaf spot, Ascochyta, and web blight, is briefly described. Results of the evaluations carried out by CIAT with the germplasm bank are also described along with the strategies for improvement developed in the search for cv. resistant to these diseases. ...

Se describen brevemente los danos causados a la habichuela por roya, mancha foliar angular, Ascochyta y mustia hilachosa. Se describen tambien los resultados de las evaluaciones realizadas por CIAT con el banco de germoplasma y las estrategias de mejoramiento desarrollados en busca de cv. resiste...


Kornegay, Julia L.[Estrategias para el mejoramiento de la produccion de habichuelas en CIAT para la roya, mancha angular, ascochyta y mustia]Estrategias para el mejoramiento de la produccion de habichuelas en CIAT para la roya, mancha angular, ascochyta y mustia
Dixon, A.Okechukwu, R.U.Akoroda, M.O.Ilona, P.Ogbe, F.Egesi, Chiedozie N.Kulakow, P.A.Ssemakula, G.N.Maziya-Dixon, B.B.Iluebbey, P.Yomeni, M.O.Geteloma, C.James, B.Eke-Okoro, O.N.Sanni, L.O.Ntawuruhunga, PheneasTarawali, G.Mahungu, N.M.Lemchi, J.Ezedinma, C.Okoro, E.Kanju, E.Adeniji, A.A.Nwosu, K.I.[Improved cassava variety handbook]Improved cassava variety handbook

Cassava root rot disease is an increasing problem in Africa where yield losses of about 80% have been recorded. We evaluated 290 African landraces and 306 improved genotypes from the germplasm collections of the International Institute of Tropical Agriculture (IITA), for sources of resistance usi...


Onyeka, T.Dixon, A.Ekpo, E.[Identification of levels of resistance to cassava root rot disease (Botryodiplodia theobromae) in African landraces and improved germplasm using In vitro inoculation method]Identification of levels of resistance to cassava root rot disease (Botryodiplodia theobromae) in African landraces and improved germplasm using In vitro inoculation method
Beebe, Stephen E.[Progress in breeding for resistance to Xanthomonas campestris pv. phaseoli in small seeded genotypes of P. vulgaris]Progress in breeding for resistance to Xanthomonas campestris pv. phaseoli in small seeded genotypes of P. vulgaris
Autor: Melendez E, A

Integrated pest control uses a combination of methods to maintain pest populations at an economically tolerable level. After listing the principal bean pests in the zone of Palmira, Valle del Cauca (Colombia) and the type of damage they cause, cultural, chemical and biological methods are discuss...


Melendez E, A[Algunos aspectos relacionados con el control integrado de plagas en frijol (Phaseolus vulgaris L.)]Algunos aspectos relacionados con el control integrado de plagas en frijol (Phaseolus vulgaris L.)
Autor: Cardona, C.

The objectives of CIATs Entomology Program are: (1) the survey and identification of insect and mite species in L.A.; (2) establishment of the economic importance of pest species in terms of yield decrease and their geographic distribution; (3) evaluation of cv. for their resistance to determined...


Cardona, C.[Metodologia de investigacion en entomologia de frijol]Metodologia de investigacion en entomologia de frijol

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