The damage caused by the bean bruchid, Callosobruchus maculatus (Fabricius) on eight different legume seeds on sale in Awka and Onitshamarkets in Anambra State, … 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 2016 Sep;96(12):4276-80. doi: 10.1002/jsfa.7639. The control had a higher percentage fat than the infested, but the fat decreased with storage period. Register to receive personalised research and resources by email, Department of Crop Protection , Institute for Agricultural Research, Ahmadu Bello University , Zaria, Nigeria, /doi/full/10.1080/03235400500180743?needAccess=true, Archives of Phytopathology and Plant Protection. The full text of this article hosted at iucr.org is unavailable due to technical difficulties. ... Enzymes with the potential to damage peritrophic membranes and gel, such as chitinase, have been associated with plant defense systems. 5 Howick Place | London | SW1P 1WG. Here, we attempt to disentangle the effects of genital damage and seminal fluid transfer on female longevity in the beetle Callosobruchus maculatus (Coleoptera: Bruchidae). Crop Sciences Department, Federal University of Piauí, Campus Professora Cinobelina Elvas, Bom Jesus, Piauí, Brazil. © 2016 Society of Chemical Industry. Cowpea (Vigna unguiculata) (variety Asontem) was planted on 9 raised beds each measuring 2.4×2.4 m, 3 each for early, mid and late harvests that is, 60,70 and 80 days after germination respectively.Each plot had 20 plant stands. Males copulating for the sixth time in succession inflicted greater levels of genital damage, but transferred smaller ejaculates in comparison with virgin males. 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. Keywords: Botanicals, Callosobruchus maculatus, Cowpea, Damage, Mortality, Protectants . The female may forcefully kick the male during copulation, ending the mating. The damage caused by Callosobruchus maculatus on cowpea grains is dependent on the plant genotype J Sci Food Agric. If you do not receive an email within 10 minutes, your email address may not be registered, This was to determine the level of quality deterioration of the cowpea varieties caused to the grains by the insects. The number of copulations performed by males was negatively … The factors tested were beans from four cowpea cultivars and seven different nitrogen sources: mineral N fertilization, inoculation with five strains of symbiotic diazotrophic bacteria, and soil nitrogen (absolute control). To learn about our use of cookies and how you can manage your cookie settings, please see our Cookie Policy. The control samples had higher carbohydrate than the infested ones. Laboratory reared strain of and other tropical grain legumes. 2016 Sep;96(12):4276-80. doi: 10.1002/jsfa.7639. BRS Tapaihum and BRS Acauã cultivars had lower cumulative emergence and instantaneous rate of population growth of the insects compared with other cultivars, indicating antixenosis resistance against C. maculatus. Working off-campus? Soybean seed coat chitinase as a defense protein against the stored product pest Callosobruchus maculatus. Registered in England & Wales No. Crop Protection, 15(7):603-607; 34 ref. Please check your email for instructions on resetting your password. The percentage carbohydrate however, decreased with increase in storage period. Thirty seven to 60% of the seeds may 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. The damage caused by the bean bruchid, Callosobruchus maculatus (Fabricius) on eight different legume seeds on sale in Awka and Onitsha markets in Anambra State, Southeastern Nigeria, were studied between January and April, 2008. The percentage carbohydrate decreased with infestation. 3099067 The insect census taken at one, two and three months showed a progressive increase in insect population from one month to three months. Copulation is injurious for the female beetle. The percentage ash in the control was higher than the infested, and it decreased with storage period. The percentage fibre was higher in the infested grains than the control, and it increased with infestation period. Number of times cited according to CrossRef: Seed-Coat Colour Affects Oviposition in the Bean Beetle, Callosobruchus maculatus (Coleoptera: Chrysomelidae). We use cookies to improve your website experience. 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. In this study, the population growth of Callosobruchus maculatus reared on beans from four cowpea cultivars fertilized with different nitrogen sources was evaluated. Callosobruchus maculatus has a karyotype of ten chromosome pairs (2N=20) ().Chromosome 10 is a sex chromosome and males are the hetergametic sex (Figure 3). The damage caused by Callosobruchus maculatus on cowpea grains is dependent on the plant genotype J Sci Food Agric. When the female is experimentally prevented from kicking the male (by removal of the hind legs), matings continued for longer than usual, … Only in rare cases can field infestations soon … It … Epub 2016 Apr 5. BRS Tapaihum and BRS Acauã cultivars showed the lowest cumulative insect emergence and instantaneous rates of population growth, and the highest insect mortality, mainly when the grains were obtained from plants inoculated with rhizobial strains. and you may need to create a new Wiley Online Library account. Abstract The effect of time of harvest on the level of damage caused by Callosobruchus maculatus on cowpea was studied. 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). Use the link below to share a full-text version of this article with your friends and colleagues. Genetics. A survey of the damage caused by the Callosobruchus maculatus (F.) on different legume seeds sold in Njikoka Local Government Area, Anambra State, Nigeria Topics Legumes , Callobruchusmaculatus , weevil , damage , Njikoka. Suppression of seed bruchid (Callosobruchus maculatus F.) development and damage on cowpea (Vigna unguiculata (L.) Walp.) The total protein in the control experiment showed a progressive decrease with increase in storage period. The damage caused by Callosobruchus maculatus on cowpea grains is dependent on the plant genotype Elida Barros Torres. The quality deterioration was determined by proximate analysis of the grains at one, two and three months. (Rutaceae) root bark powder when compared to neem seed powder and pirimiphos-methyl. Clean legume seeds purchased from local markets were screened to remove previous infestations. Callosobruchus maculatus was maintained on the cowpea cultivars and biological activities such as oviposition, adult emergence, percentage seed damage, and weight loss were monitored. The male possesses penile spineswhich damage the female reproductive tract. The insect census taken at one, two and three months showed a progressive increase in insect population from one month to three months. Waterm. 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. Crop damage by C. maculatus-dX harvest is usually less than 10% but infestation could build up rapidly during seed storage. 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