Studies on Sperm Survival in Fertile and Sterile Strains of Callosobruchus maculatus (Coleoptera: Bruchidae)1

Abstract
Although the precise evaluation of sperm vitality is still an enigmatic problem, insofar as motility alone has been considered an index of life (Burgos and diPalo 1951), still it is a fairly reasonable parameter to assess the comparative longevity of spermatozoa of different species or strains.

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