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- W2054405972 abstract "Les parametres biologiques de Callosobruchus maculatus (Fabricius) (Coleoptere, Bruchidae) ont ete calcules sur la base de 24 tables de vie construites a partir de differentes combinaisons de facteurs liees a trois conditions thermo-hygrometriques, quatre substrats alimentaires et deux souches de C. maculatus. Il s'agit de 32‹C et 60 % H.R., 27‹C et 70 % H.R. puis 23‹C et 80 % H.R. Les substrats alimentaires sont lesgrains et les gousses de niebe (Vigna unguiculata L. Walp.) et de Cassia occidentalis (Linn.). Les deux souches de C. maculatus sont, d'une part, celle du Sud Benin et, d'autre part celle du Nord. Benin. Les parametres biologiques sont les suivants : taux d'accroissement intrinseque (rm), taux d'accroissement fini (ƒÉ), taux net de reproduction (Ro), duree moyenne d'une generation (T), age moyen des femelles a la naissance de ladescendance (Tc) et capacite d'accroissement (Rc). Les resultats ont montre que seul le substrat constitue de grains de niebe a entraine une augmentation significative du taux net de reproduction ( Ro ) et du taux dfaccroissement (ƒÉ) de la population au seuil de 5 %. Various biological parameters of Callosobruchus maculatus (Fabricius) (Coleoptera :Bruchidae) were evaluated on the basis of 24 life tables derived from 3 x 4 x 2 factorial design combining three conditions of temperature and relative humidity, four feeding substratums and two strains of C. maculatus. Describtion of thoses factor levels was :32°C and 60 % R.H. ; 27 °C and 70 % R.H. ; 23°C and 80 % R.H. ; pods and seeds of cowpea and of Cassia occidentalis (Linn.) and finally northern and southern strains of the insect storage pest. Various biological parameters were : intrinsic rate of increase (rm), finite rate of increase (ë), net reproduction rate (Ro), mean length of a generation(Tc), mean age of females in cohort at birth of female offspring (Tc) and capacity for inscrease (rc). Results indicated that only cowpea seeds increased significatly the values of Ro and ë at the level of 5 %." @default.
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- W2054405972 date "2009-06-08" @default.
- W2054405972 modified "2023-09-27" @default.
- W2054405972 title "Etude experimentale des parametres biologiques de callosobruchus maculatus (fabricius) (coleoptera : bruchidae) sur vigna unguiculata (l.) walp. et sur cassia occidentalis (linn.)" @default.
- W2054405972 doi "https://doi.org/10.4314/asab.v5i2.43366" @default.
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