Data/hora: 01/06/2024 23:52:57

Biblioteca(s): | Embrapa Meio Norte / UEP-Parnaíba.
Data corrente: | 18/06/1996
Data da última atualização: | 18/06/1996
Autoria: | PATHAK, R. S.
Título: | Genetic of resistance to aphid in cowpea.
Ano de publicação: | 1988
Fonte/Imprenta: | Crop Science, v.28, p.474-476, 1988.
Idioma: | Inglês
Conteúdo: | Aphid (Aphis craccivora Kock) is a major insect pest of cowpea (Vigna unguiculata L.) Walp) particularly in Africa and Asia, causing direct damage by removal of plant sap and indirect damage by transmitting mosaic viruses. The objectives of this study were to determine the inheritance of resistance to aphid in four resistant cultivars of cowpea andto determine if the genes for resistance were independent. The parential, F1, F2 and BC1 population involving resistant x susceptible and resistant x resistant cultivars were evaluated in the screenhouse. Three-day-old seedlings were each infested with 10 apterous adult aphids and injury reactions were recorded 8 to 10 d after infestation by counting dead ( susceptible) and surviving (resistant) seedlings in eachpopulation. The reactions of F1, F2 and BC1 populations arising from the crosses of four resistant cultivars, "ICV10", "ICV11", "ICV12", and"Tvu31" with susceptible...
Palavras-Chave: | Afideos; Aphid; Caupi; Cowpea; Insetos; Resistance.
Thesagro: | Aphis Craccivora; Resistência; Vigna Unguiculata.
Thesaurus Nal: | insects.
Categoria do assunto: | --
Registro original: | Embrapa Meio Norte / UEP-Parnaíba (CPAMN-UEPP)
Exemplares: | CPAMN-UEPP - (6451-1) - ADP - SP - -- -  -  - 1991.04046 - DIS