A multivariate analysis of growth and development parameters of the legume pad borer, Maruca testulalis, on variably resistant cowpea cultivars

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dc.creatorOghiakhe, S.
dc.creatorOdulaja, A.
dc.date1993-03
dc.date2018-09-14T07:37:39Z
dc.date2018-09-14T07:37:39Z
dc.date.accessioned2026-06-27T16:00:49Z
dc.descriptionPrincipal component analysis was employed to study the variation patterns in 18 cowpea cultivars developed for resistance to Maruca testulalis Geyer (Lepidoptera: Pyralidae) based on 7 developmental parameters of the pest on floral buds, flowers and sliced pods. On the whole, three developmental parameters: percentage pupation (V2), percentage emergence (V5) and growth index (V7) were the most important for the grouping of the cultivars with respect to M. testulalis damage. However, out of the three parameters, growth index (V7) had the highest factor score. Using the cluster analysis technique, the cultivars were sorted into five distinct groups for each part. The importance of these findings in the determination of protection periods for particular cultivars and cultural control studies of M. testulalis in cowpea are discussed.
dc.formatapplication/pdf
dc.identifierhttps://hdl.handle.net/10568/97355
dc.identifier.urihttp://hdl.handle.net/123456789/120029
dc.languageen
dc.publisherWiley
dc.rightsLimited Access
dc.sourceOghiakhe, S. & Odulaja, A. (1993). A multivariate analysis of growth and development parameters of the legume pod borer, Maruca testulalis on variably resistant cowpea cultivars. Entomologia Experimentalis et Applicata, 66(3), 275-282.
dc.subjectcowpeas
dc.subjectlegumes
dc.subjectresistance varieties
dc.subjectcomponent analysis
dc.titleA multivariate analysis of growth and development parameters of the legume pad borer, Maruca testulalis, on variably resistant cowpea cultivars
dc.typeJournal Article

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