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dc.contributor.authorKoona, P.
dc.contributor.authorJackai, L.E.N.
dc.identifier.citationKoona, P. & Jackai, L.E.N. (2004). The potential of pod-shaving in studies of the role of trichomes in Vigna resistance to the pod-bug Clavigralla tomentosicollis Stål (Hemiptera: Coreidae). International Journal of Tropical Insect Science, 24(4), 298-303.
dc.description.abstractTwo shaving methods, one by using a sharp razor blade and the other a small pair of dissecting scissors, were tested on pods of Vigna vexillata accessions to investigate the effect of trichomes on feeding and development of the pod-bug Clavigralla tomentosicollis Stål (Hemiptera: Coreidae). Electron micrographs of unshaved (control) pods showed that all trichome types (glandular, long non-glandular and short non-glandular) were present on the pod surface. Shaving with a pair of scissors shortened long non-glandular trichomes, with little or no damage to the glandular types. Percentages of seed damage and nymphs surviving to the adult stage were similar (P>0.05) between unshaved and scissors-shaved pods. These pods showed significantly lower (P<0.05) percent seed damage than razor-shaved and solvent-washed pods, whose glandular trichomes were all completely scraped or washed off. The opposite trend was observed for the insect's growth index, indicating that glandular trichomes had a greater influence than non-glandular trichomes on feeding and development of C. tomentosicollis. The present study suggests that the scissor-shaving method would be more appropriate if the effect of trichome length is being investigated, and the more abrasive razor-shaving method if the effect of glandular trichomes is of interest.
dc.subjectVigna Vexillata
dc.titleThe potential of podshaving in studies of the role of trichomes in Vigna resistance to the podbug Clavigralla tomentosicollis Stal (Hemiptera: Coreidae)
dc.typeJournal Article
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.crpGrain Legumes
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationInstitute of Agricultural Research for Development, Cameroon
cg.contributor.affiliationTuskegee University
cg.coverage.regionWest Africa
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectGrain Legumes
cg.accessibilitystatusLimited Access

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