Data/hora: 03/06/2024 11:05:01

Biblioteca(s): | Embrapa Meio Ambiente.
Data corrente: | 21/06/1993
Data da última atualização: | 18/12/2019
Autoria: | MORAES, G. J.; McMURTRY, J. A.
Afiliação: | GILBERTO JOSE de MORAES, EMBRAPA-CPATSA.
Título: | Effect of temperature and sperm supply on the reproductive potential of Tetranychus evansi (Acari: Tetranychidae).
Ano de publicação: | 1987
Fonte/Imprenta: | Experimental & Applied Acarology, v.3, p.95-107, 1987.
Idioma: | Inglês
Conteúdo: | The biology of Tetranychus enancy Baker and Pritchard was studied at five different temperatures on excised leaves of Solanum douglasii Dunal. The theoretical lower theoretical lower threshold temperature of development was ca. 13 C. The combined immature stages required ca. 148 day-degrees for completion. Progressively later initiation of mating resulted in higher peak proportions of females produced, up to an 8-day period between emergence and amting at 30 C. The proportions of male offspring always increased towards the end of the oviposition period, apparently because of sperm depletion. The calculated intrinsic rate of increase was highest (0.432) at 35 C, the highest temperature tested. At that same temperature, dayly oviposition rate and net reproductive rate were maximum (9.5 and 111.77, respectively), and mean generation and doubling time were minimum (10.92 and 1.6 days, respectively).
Palavras-Chave: | Sex; Variation.
Thesagro: | Tetranychidae.
Thesaurus Nal: | Acari; reproduction; temperature; Tetranychus evansi.
Categoria do assunto: | --
Registro original: | Embrapa Meio Ambiente (CNPMA)
Exemplares: | CNPMA - (1195-1) - ADD - AP - DD -  -  -  - DIS