Neotropical Entomology (2004) 33, 365-369
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Edson L.L. Baldin and Fernando M. Lara (2004)
Afeito de Temperaturas e de Genótipos de Feijoeiro sobre a Reseistência a Acanthoscelides obtectus (Say) (Coleoptera: Bruchidae)
[Effect of storage temperature and bean genotypes on the resistance to Acanthoscelides obtectus (Say) (Coleoptera: Bruchidae)]
Neotropical Entomology 33 (3), 365-369
Abstract: Aiming to evaluate the effect of different temperatures of storage and bean genotypes, Phaseolus vulgaris L., on the expression of resistance to the bean weevil, Acanthoscelides obtectus (Say), tests were carried out with the genotypes Arc.1S, Arc.1, Arc.2, Arc.4 and Carioca Pitoco. Grains of Arc.1S and Arc.2 expressed resistance to A. obtectus at 20ºC, 25ºC and 30ºC; the resistance of Arc.1 was reduced as the storage temperature increased from 25ºC to 30ºC. The interaction genotypes x temperatures was significant, indicating that the increase of temperature affects the expression of resistance. The 20ºC temperature was the most suitable to allow bean genotypes to be discriminate in terms of resistance.
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Afeito de Temperaturas e de Genótipos de Feijoeiro sobre a Reseistência a Acanthoscelides obtectus (Say) (Coleoptera: Bruchidae)
[Effect of storage temperature and bean genotypes on the resistance to Acanthoscelides obtectus (Say) (Coleoptera: Bruchidae)]
Neotropical Entomology 33 (3), 365-369
Abstract: Aiming to evaluate the effect of different temperatures of storage and bean genotypes, Phaseolus vulgaris L., on the expression of resistance to the bean weevil, Acanthoscelides obtectus (Say), tests were carried out with the genotypes Arc.1S, Arc.1, Arc.2, Arc.4 and Carioca Pitoco. Grains of Arc.1S and Arc.2 expressed resistance to A. obtectus at 20ºC, 25ºC and 30ºC; the resistance of Arc.1 was reduced as the storage temperature increased from 25ºC to 30ºC. The interaction genotypes x temperatures was significant, indicating that the increase of temperature affects the expression of resistance. The 20ºC temperature was the most suitable to allow bean genotypes to be discriminate in terms of resistance.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language:
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Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host
Pest and/or beneficial records:
| Beneficial | Pest/Disease/Weed | Crop/Product | Country | Quarant.
|
|---|---|---|---|---|
| Acanthoscelides obtectus | Beans (Phaseolus) |
