Copulation is injurious for the female beetle. Waterm. 2 INTRODUCTION Cowpea (Vigna unguiculata L. Walp) originated from Africa where a large number of primitive cultivars and semi-wild forms are found (Kwaifa et al., 2012). Learn about our remote access options, Crop Sciences Department, Federal University of Piauí, Campus Professora Cinobelina Elvas, Bom Jesus, Piauí, Brazil, Agricultural, Environmental and Biological Sciences Center, Federal University of Recôncavo da Bahia, Cruz das Almas, Bahia, Brazil, Embrapa Semiárido, Petrolina, Pernambuco, Brazil, Agronomy Department, UNESP, Campus de Ilha Solteira, Sao Paulo, Brazil. ... Enzymes with the potential to damage peritrophic membranes and gel, such as chitinase, have been associated with plant defense systems. Enter your email address below and we will send you your username, If the address matches an existing account you will receive an email with instructions to retrieve your username, By continuing to browse this site, you agree to its use of cookies as described in our, I have read and accept the Wiley Online Library Terms and Conditions of Use. It is possible that male may benefit from harming the female because the injury could reduce matings or mating success with other males, or increase her egg production. There was a significant difference (p > 0.05) in the insect population amongst the different cowpea varieties. The female may forcefully kick the male during copulation, ending the mating. Ten varieties of cowpea grains were infested with Callosobruchus maculatus. Number of times cited according to CrossRef: Seed-Coat Colour Affects Oviposition in the Bean Beetle, Callosobruchus maculatus (Coleoptera: Chrysomelidae). Search for more papers by this author. Rhizobial Diversity for Tropical Pulses and Forage and Tree Legumes in Brazil, Journal of the Science of Food and Agriculture. It … The number of copulations performed by males was negatively … Laboratory reared strain of The full text of this article hosted at iucr.org is unavailable due to technical difficulties. The percentage carbohydrate decreased with infestation. The total protein in the control experiment showed a progressive decrease with increase in storage period. The control had a higher percentage fat than the infested, but the fat decreased with storage period. The percentage fibre was higher in the infested grains than the control, and it increased with infestation period. Crop damage by C. maculatus-dX harvest is usually less than 10% but infestation could build up rapidly during seed storage. Genetics. To learn about our use of cookies and how you can manage your cookie settings, please see our Cookie Policy. 2016 Sep;96(12):4276-80. doi: 10.1002/jsfa.7639. For BRS Tapaihum cultivar, inoculation with diazotrophic bacteria strains BR3267, BR 3262 and BR 3299, and nitrogen fertilization resulted in higher mortality among C. maculatus. The damage caused by the bean bruchid, Callosobruchus maculatus (Fabricius) on eight different legume seeds on sale in Awka and Onitshamarkets in Anambra State, … Beans from cowpea cultivars fertilized with mineral N or inoculated with various rhizobium strains may contain different nitrogen concentrations and nitrogen metabolite composition, which affects the beans' defense mechanisms against pests. If you do not receive an email within 10 minutes, your email address may not be registered, Bambara groundnut seeds are liable to a simultaneous attack by two species of Bruchidae, Callosobruchus subinnotatus (Pic) and particularly by Callosobruchus maculatus (F.) (Coleoptera: Bruchidae). Callosobruchus maculatus was maintained on the cowpea cultivars and biological activities such as oviposition, adult emergence, percentage seed damage, and weight loss were monitored. 2016 Sep;96(12):4276-80. doi: 10.1002/jsfa.7639. Please check your email for instructions on resetting your password. Epub 2016 Apr 5. with Zanthoxylum zanthoxyloides (Lam.) The damage caused by Callosobruchus maculatus on cowpea grains is dependent on the plant genotype Elida Barros Torres Crop Sciences Department, Federal University of Piauí, Campus Professora Cinobelina Elvas, Bom Jesus, Piauí, Brazil Use the link below to share a full-text version of this article with your friends and colleagues. One Mendelian trait has been described for bean beetles, body color which is autosomal and has alleles with incomplete dominance ().Heritable variation in body size is well described (Fox et al.

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