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Singh, Shree P.Cardona Mejía, CésarMorales, Francisco JoséPastor Corrales, Marcial A.Voysest Voysest, Oswaldo[Gamete selection for upright carioca beans with resistance to leafhopper and four diseases]Gamete selection for upright carioca beans with resistance to leafhopper and four diseases

High levels of resistance to Apion godinani Wagner have been reported in bean, Phaseolus vulgaris L., landraces from Mexico. We report on the role of hypersensitivity to A. godmani in five resistant and three susceptible bean genotypes. In susceptible genotypes (cultivars 'Canario 107','Jamapa', ...


Garza García, RamónVera, JCardona Mejía, CésarBarcenas Ortega, NMSingh, Shree P.[Hypersensitive response of beans to Apion Godmani (Coleoptera: Curculionidae)]Hypersensitive response of beans to Apion Godmani (Coleoptera: Curculionidae)

The bean-pod weevil (BPW), Apion godmani Wagner, often causes heavy losses in crops of common bean (Phaseolus vulgaris L.). Farmers need resistant bean cultivars to minimize losses, cut production costs, stabilize seed yield, and reduce pesticide use and consequent health hazards. To design effec...


Garza García, RamónCardona Mejía, CésarSingh, Shree P.[Inheritance of resistance to the bean-pod weevil (Apion godmani Wagner) in common beans from Mexico]Inheritance of resistance to the bean-pod weevil (Apion godmani Wagner) in common beans from Mexico

Both nymphal and adult spittlebugs (Hemiptera: Cercopidae) cause serious economic damage to susceptible brachiariagrass [genus Biachiaria (Trin.) Griseb], pastures in tropical America. Both life stages are xylem feeders: nymphs feed primarily on roots and stems, whereas the adults feed mainly on ...


Cardona Mejía, CésarMiles, John W.Zuniga, GSotelo, G.[Independence of Resistance in Brachiaria spp. to Nymphs or to Adult Spittlebugs (Hemiptera: Cercopidae): Implications for Breeding for Resistance]Independence of Resistance in Brachiaria spp. to Nymphs or to Adult Spittlebugs (Hemiptera: Cercopidae): Implications for Breeding for Resistance

Arcelin, a seed protein discovered in wild Phaseolus vulgaris L. accessions, gives high levels of resistance to the Mexican bean weevil [MBW; Zabrotes subfasciatus (Boheman)]. Six variants of arcelin have been described. In this paper we report on a new variant, arcelin 7, found in six wild bean ...


Acosta Gallegos, Jorge AlbertoQuintero, C.Vargas Daza, JaimeToro Chica, OrlandoTohme, Joseph M.Cardona Mejía, César[A new variant of arcelin in wild common bean Phaseolus vulgaris L., from southern Mexico]A new variant of arcelin in wild common bean Phaseolus vulgaris L., from southern Mexico

In 1993, seed from the EMP series reportedly resistant to leafhoppers (Empoasca Kraemeri Ross & Moore), was obtained from Centro Internacional de Agricultura Tropical (CIAT), South America and planted at Ridgetown, ON. Under severe potato leafhopper, Empoasca fabae (Hams), pressure the selections...


Schaafsma, AWCardona Mejía, CésarKornegay, Julia L.Wylde, AMMichaels, TE[Resistance of common bean lines to the potato leafhopper (Homoptera: Cicadellidae)]Resistance of common bean lines to the potato leafhopper (Homoptera: Cicadellidae)

Host plant resistance in common bean (Phaseolus vulgaris L.) is a promising component in an integrated cropping system for managing thrips (Thrips palmi Karny) infestation. This study was conducted to identify quantitative trait loci (QTLs) for resistance to thrips in common bean, using F5:7 reco...


Frei, AMBlair, Matthew W.Cardona Mejía, CésarBeebe, Stephen E.Gu, HDorn, S.[QTL mapping of resistance to Thrips palmi karny in common bean]QTL mapping of resistance to Thrips palmi karny in common bean
Lareo, LRCardona Mejía, CésarPosso G, CEKornegay, Julia L.[Nutritional and toxicological studies with arcelin-containing bean genotypes]Nutritional and toxicological studies with arcelin-containing bean genotypes

Several species and genera of spittlebugs (Homoptera: Cercopidae) are economic pests of grasses in tropical America. They have the potential to cause serious losses on millions of hectares of improved pastures based on cultivars of several species of Brachiaria. Most of the available commercial c...


Cardona Mejía, CésarMiles, John W.Sotelo, G.[An improved methodology for massive screening of Brachiaria spp. genotypes for resistance to Aeneolamia varia (Homoptera: Cercopidae)]An improved methodology for massive screening of Brachiaria spp. genotypes for resistance to Aeneolamia varia (Homoptera: Cercopidae)

Para desarrollar resistencia de pastos Brachiaria spp. al salivazo de los pastos es muy importante confirmar, en condiciones de campo, los niveles de resistencia detectados en invernadero. Es aquí donde el trabajo con el insecto presenta la mayor dificultad dada su característica distribución agr...


Sotelo, G.Cardona Mejía, César[Metodología de campo para la evaluación de Brachiaria spp. por resistencia al salivazo de los pastos, Aeneolama varia (Homoptera: Cercopidae) = A field methodology to evaluate Brachiaria spp. for resistance to the spittlebug, Aeneolamia varia (F.) (Homoptera: Cercopidae)]Metodología de campo para la evaluación de Brachiaria spp. por resistencia al salivazo de los pastos, Aeneolama varia (Homoptera: Cercopidae) = A field methodology to evaluate Brachiaria spp. for resistance to the spittlebug, Aeneolamia varia (F.) (Homoptera: Cercopidae)

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