Significant advances in increasing tolerance to the leafhopper Empoasca kraemeri Ross & Moore in common bean have been obtained using a new breeding scheme where yield under leafhopper attack is the principal selection criterion in the evaluation of progenies. However, to further refine this bree...
Kornegay, Julia L.
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Cardona, C.
,
[Development of an appropriate breeding scheme for tolerance to Empoasca kraemeri in common bean]
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Development of an appropriate breeding scheme for tolerance to Empoasca kraemeri in common bean
The bean weevil Acanthoscelides obtectus, is an important storage pest of common beans in Latin America and Africa. A few wild bean accessions from Mexico have been identified as highly resistant to the weevil. One accession, G 12952, was crossed to two susceptible bean cultivars differing in see...
Kornegay, Julia L.
,
Cardona, C.
,
[Inheritance of resistance to Acanthoscelides obtectus in a wild common bean accession crossed to commercial bean cultivars]
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Inheritance of resistance to Acanthoscelides obtectus in a wild common bean accession crossed to commercial bean cultivars
Four different types of arcelin, a protein that plays an important role in resistance to bruchids such as Zabrotes subfasciatus, were identified in wild accessions of Phaseolus vulgaris. Isogenic lines with cultivated black- (Porrillo 70) and white- (Sanilac) seeded parents were obtained by norma...
Harmsen, R.
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Bliss, Fredrick A.
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Cardona, C.
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POSSO, C.E.
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Osborn, Thomas C.
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[Transferring genes for arcelin protein from wild to cultivated beans: Implications for bruchid resistance]
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Transferring genes for arcelin protein from wild to cultivated beans: Implications for bruchid resistance
An expt. to study the background soil effects associated with var. resistance in bean pest populations, virus incidence and yield was carried out at the Centro Internacional de Agricultura Tropical (CIAT), Palmira, Colombia from Jan.-March, 1978. The effect of the treatments and of the var. on Em...
Hohmann, C.L.
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Schoonhoven, Aart van
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Cardona, C.
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[Manejo de pragas do feijoeiro (Phaseolus vulgaris, Linnaeus, 17S3) atraves da utilizacao de cobertura de solo associada a resistwncia varietal]
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Manejo de pragas do feijoeiro (Phaseolus vulgaris, Linnaeus, 17S3) atraves da utilizacao de cobertura de solo associada a resistwncia varietal