Characterization of Resistance to Three Bruchid Species (Callosobruchus spp., Coleoptera, Bruchidae) in Cultivated Rice Bean (Vigna umbellata)

Resistance of wild and cultivated rice bean (Vigna umbellata [Thunberg] Ohwi and Ohashi) to three bruchid species, Callosobruchus chinensis L., Callosobruchus maculatus F., and Callosobruchus analis F., was evaluated. All but three accessions of cultivated, and all wild rice bean accessions tested,...

Full description

Saved in:
Bibliographic Details
Published in:Journal of economic entomology 2003-02, Vol.96 (1), p.207-213
Main Authors: Kashiwaba, K., Tomooka, N., Kaga, A., Han, O-K., Vaughan, D. A.
Format: Article
Language:English
Subjects:
Animals
bruchid resistance
Callosobruchus spp
Ceratotropis
Coleoptera - growth & development
Fabaceae - physiology
Female
Male
Oviposition
PLANT RESISTANCE
rice bean
Seeds - physiology
Species Specificity
Vigna spp
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Resistance of wild and cultivated rice bean (Vigna umbellata [Thunberg] Ohwi and Ohashi) to three bruchid species, Callosobruchus chinensis L., Callosobruchus maculatus F., and Callosobruchus analis F., was evaluated. All but three accessions of cultivated, and all wild rice bean accessions tested, exhibited complete resistance to all three bruchid species. Rice bean seeds with seed coat removed also showed complete resistance to the three bruchid species. Results indicate that physical attributes and/or chemical(s) present in the seed coat of rice bean are not the main factors responsible for resistance. Feeding tests were performed by using artificial beans prepared with varying proportions of rice bean (resistant) and azuki bean (susceptible) flour. Number of bruchid adults that emerged decreased, and larval developmental period (days) was extended, when artificial beans with an increasing proportion of rice bean flour were used. These tests revealed that a chemical compound(s) contained in the cotyledon of rice bean has an inhibitory effect on the growth of these bruchid species. The results also indicate that the chemical(s) in rice bean cotyledon is most effective against C. maculatus.
ISSN:0022-0493
1938-291X
0022-0493
DOI:10.1603/0022-0493-96.1.207