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Blair, Matthew W.Hoyos, A.Cajiao V., César HernandoKornegay, Julia L.[Registration of two mid-altitude climbing bean germplasm lines with yellow grain color, MAC56 and MAC57]Registration of two mid-altitude climbing bean germplasm lines with yellow grain color, MAC56 and MAC57

Over 150 bean (Phaseolus vulgaris) pure lines and accessions were evaluated in growth chamber and greenhouse trials for reactions to one or more populations of root-knot nematodes (Meloidogyne spp.) collected from Colombia or the United States. Bean pure lines and accessions were evaluated for ro...


Mullin, BAAbawi, G.S.Pastor Corrales, Marcial A.Kornegay, Julia L.[Reactions of selected bean pure lines and accessions to Meloidogyne species]Reactions of selected bean pure lines and accessions to Meloidogyne species

A survey of root-knot nematodes associated with bean (Phaseolus vulgaris) roots and soils in the major bean production regions of Colombia and Peru was conducted during 1988 1989. Over 150 samples were processed for these parasites, and specimens from more than 100 of the collections were identif...


Mullin, BAAbawi, G.S.Pastor Corrales, Marcial A.Kornegay, Julia L.[Root-knot nematodes associated with beans in Colombia and Peru and related yield loss]Root-knot nematodes associated with beans in Colombia and Peru and related yield loss

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

Snap bean research at CIAT is relatively new. It began in 1982 as a student thesis project to evaluate snap bean germplasm. Later, new introductions were received and sources of resistance to rust were identified. A modest crossing program was initiated and the first advanced lines entered the VE...


Kornegay, Julia L.[CIAT's role in international snap bean research]CIAT's role in international snap bean research

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