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It is widely accepted that two major gene pools exist in cultivatedcommon bean, one Middle American and one Andean. Recently another gene pool,designated as North Andean and a fourth group (not considered to be adistinct gene pool) have been reported by the senior author and hiscolleagues. Many o...


Islam, F.M.A.Basford, KEJara, Carlos E.Redden, RJBeebe, Stephen E.[Seed compositional and disease resistance differences among gene pools in cultivated common bean]Seed compositional and disease resistance differences among gene pools in cultivated common bean

Angular leaf spot (ALS) is one of the most devastating diseases of common bean (Phaseolus vulgaris L.) in tropical and subtropical countries. The causal fungus, Phaeoisariopsis griseola(Sacc.) Ferr. is highly variable and a diverse source of resistance genes is required to manage this disease. We...


Mahuku, George S.Jara, Carlos E.Cajiao V., César HernandoBeebe, Stephen E.[Sources of resistance to angular leaf spot (Phaeoisariopsis griseola) in common bean core collection, wild Phaseolus vulgaris and secondary gene pool]Sources of resistance to angular leaf spot (Phaeoisariopsis griseola) in common bean core collection, wild Phaseolus vulgaris and secondary gene pool

Use of genetic resistance is the most practical and economic way to manage anthracnose of common bean. Colletotrichum lindemuthianum, the causal agent of bean anthracnose, is a highly variabile pathogen, and there are no host resistance genes that are effective against all known races of the path...


Mahuku, George S.Jara, Carlos E.Cajiao V., César HernandoBeebe, Stephen E.[Sources of resistance to Colletotrichum lindemuthianum in the secondary gene pool of Phaseolus vulgaris and in crosses of primary and secondary gene pools]Sources of resistance to Colletotrichum lindemuthianum in the secondary gene pool of Phaseolus vulgaris and in crosses of primary and secondary gene pools
Castellamos, GuillermoJara, Carlos E.Mosquera Cifuentes, Gloria Maria[Bean pathogens: practical guide for Lab and greenhouse work]Bean pathogens: practical guide for Lab and greenhouse work

The precision of a modified tower for Uromyces phaseoli spore inoculation was assessed. Main parts of the tower are described and a picture included. In the 1st expt., the effect of the deposition control of U. phaseoli spores was studied on the uniformity of deposition during deposition times ra...


Castaño Zapata, JairoCastellanos, G.Jara, Carlos E.Pastor Corrales, Marcial A.[Funcionamiento y eficiencia de una torre modificada para inoculacion de esporas de hongos]Funcionamiento y eficiencia de una torre modificada para inoculacion de esporas de hongos
Castellanos, GuillermoJara, Carlos E.Mosquera Cifuentes, Gloria Maria[Bean pathogens: practical guide for lab and greenhouse work]Bean pathogens: practical guide for lab and greenhouse work

A total of 18 bean var. with different degrees of rust resistance in the field were subjected to 4 treatments, to obtain high severity of Uromyces phaseoli under low RH. Treatments were (1) greenhouse inoculation, with optimum temp. and RH for disease development, (2) field inoculation in infecti...


Castaño Zapata, JairoJara, Carlos E.[Metodo para obtener alta severidad de la roya del frijol en areas con humedad relativa baja]Metodo para obtener alta severidad de la roya del frijol en areas con humedad relativa baja

Angular leaf spot (ALS), caused by the fungus Phaeoisariopsis griseola (Sacc.) Ferr., is one of the most important diseases of common bean (Phaseolus vulgaris L.) in tropical and subtropical bean producing areas. The common bean accession G 10474 has been widely resistant to P. griseola, includin...


Mahuku, George S.Montoya, CHenriquez Naranjo, MAJara, Carlos E.Terán Santofimio, HenryBeebe, Stephen E.[Inheritance and characterization of angular leaf spot resistance gene present in common bean accession G 10474 and identification of an AFLP marker linked to the resistance gene]Inheritance and characterization of angular leaf spot resistance gene present in common bean accession G 10474 and identification of an AFLP marker linked to the resistance gene
Keller, BeatManzanares, ChloeJara, Carlos E.Lobaton, Juan DavidStuder, BrunoRaatz, Bodo[Fine-mapping of a major QTL controlling angular leaf spot resistance in common bean (Phaseolus vulgaris L.)]Fine-mapping of a major QTL controlling angular leaf spot resistance in common bean (Phaseolus vulgaris L.)
Jara, Carlos E.Mahuku, George S.Terán Santofimio, HenrySingh, Shree P.[Reaction of common bean lines VAX 4, VAX 5, and VAX6, derived from interspecific hybridization and gene pyramiding, to 20 Xanthomonas campestris pv. phaseoli isolates of different geographical origins]Reaction of common bean lines VAX 4, VAX 5, and VAX6, derived from interspecific hybridization and gene pyramiding, to 20 Xanthomonas campestris pv. phaseoli isolates of different geographical origins

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