Data/hora: 17/06/2024 17:13:36

Biblioteca(s): | Embrapa Semiárido.
Data corrente: | 28/01/2015
Data da última atualização: | 28/01/2015
Autoria: | SILVA, R. R. da; OLIVEIRA, J. E. de M.; SILVA, L. B.; SILVA, J. G. da; SOUZA, I. D.; OLIVEIRA, A. C.
Afiliação: | RAPHAEL REIS DA SILVA, Universidade Estadual do Píauí; JOSE EUDES DE MORAIS OLIVEIRA, CPATSA; LUCIANA BARBOSA SILVA, Pós-Graduação em Agronorma-Fítotecnía, Universidade Federal do Píauí; JOCÉLIA GONÇALVES DA SILVA; INGRIDE DAYANE SOUZA, Uníversídade Federal Rural de Pernambuco; ANDREA COSTA OLIVEIRA, Universidade de Pernambuco.
Título: | Planococcus citri (Risso, 1813) on grapevine: do presence of the male influences reproduction?
Ano de publicação: | 2014
Fonte/Imprenta: | Journal of Entomology, v. 11, n. 6, p. 330-337, 2014.
DOI: | 1O.3923fje.2014.330.337
Idioma: | Inglês
Conteúdo: | The reproductive biology of mealybugs is a topic of great discussion and contradiction with regard to the study of lhe bio-ecology of the pests. The main reason for controversy is the possibility that facultativa parthenogenesis occurs, because it is reported as occurring and questioned by several authors. Thus, the objective aí this study was to evaluate the reproductive biology of females of Planococcus citri, coming from vineyards in the Lower Basin of the São Francisco Valley and the importance of male for progeny in this species. The experiment was conducted at the Laboratory of Entomology of Embrapa Semiarid (Petrolina-PE) in a controlled environment under the conditions of 25±1°C, 60±10% RH and a photoperiod of 12L:12D. Second instar nymphs were isolated individually in order to obtain virgin adult females. Individuals were kept in Petri dishes containing water-agar solution (2%) and a leaf disc of the grapevine (Vitis vinifera L.) cultivar Syrah, in the absence and presence of adult males. The studied population of P. citri reproduces only sexually, therefore, the presence of the male plays a key role in the reproduction of this species. In counterpart, non-copulated females preserve their morphological characteristics, such as waxy covering of the body, greater longevity and building of ovisacs.
Palavras-Chave: | Bio-ecologia; Biologia reprodutiva; Cochonilhas; Fecundidade.
Thesagro: | Fertilidade; Uva; Vitis Vinifera.
Thesaurus Nal: | Grapes; Planococcus citri.
Categoria do assunto: | O Insetos e Entomologia
Registro original: | Embrapa Semiárido (CPATSA)
Exemplares: | CPATSA - (54286-1) - UPC - AP - DD -  -  -  - DIS