Data/hora: 07/06/2024 15:08:02

Biblioteca(s): | Embrapa Mandioca e Fruticultura.
Data corrente: | 03/01/2000
Data da última atualização: | 23/05/2023
Autoria: | POWELL, C. A.; PELOSI, R. R.; COHEN, M.
Afiliação: | University of Florida, Institute of Food and Agricultural Sciences. Agricultural Research and Education Center, Fort Pierce.
Título: | Superinfection of orange trees containing mild isolates of citrus tristeza virus with severe Florida isolates of citrus tristeza virus.
Ano de publicação: | 1992
Fonte/Imprenta: | Plant Disease, v.76, n.2, p.141-144, 1992.
Idioma: | Inglês
Conteúdo: | The ability of four mild isolates of citrus tristeza virus (CTV) to suppress the spread of Florida severe isolates of CTV into Valencia sweet orange trees propagated on sour orange rooststock was assessed by symptom development over an 8-yr period. Decline symptoms occurred in some of the trees containing each of the mild isolates, as well as the unprotected (no mild isolate) control trees, within 3 yr after planting. After 5 yr, the percentage of decline in trees infected with the four mild isolates was 28, 22, 27, and 25, respectively, compared with 39% for the unprotected control trees. After 8 yr, the percentage of trees with symptoms (stunting or decline) was 75, 76, 74, and 73, respectively, compared with 86% for the control.
Palavras-Chave: | Control; Controle; Diseases; Propagacao; Propagation.
Thesagro: | Doença; Laranja.
Categoria do assunto: | --
Registro original: | Embrapa Mandioca e Fruticultura (CNPMF)
Exemplares: | CNPMF - (17574-1) - ADD - AP - DD - Publicação digital -  -  - DIS