Data/hora: 03/06/2024 11:05:49

Biblioteca(s): | Embrapa Mandioca e Fruticultura.
Data corrente: | 31/03/1995
Data da última atualização: | 31/03/1995
Autoria: | IKOTUN, T.; HAHN, S. K.
Título: | Screening cassava cultivars for resistance to the cassava anthracnose disease (CAD).
Ano de publicação: | 1994
Fonte/Imprenta: | Wageningen, Netherlands: ISTRC, 1994.
Páginas: | p.178-183
ISBN: | 978-131-094-4
Idioma: | Inglês
Notas: | In: Symposium of the International Society for Tropical Root Crops, 9, 1991, Held at Accra, Ghana. Proceedings...
Conteúdo: | Forty-seven cultivars of cassava in IITA'd trials were screened for their reaction to infection by Colletotricum gloesporiodes f. sp. manihotis in the field. The following parameters were observed: (a) distance of first canker from the soil, (b) total number of cankers per plant, (c) size of cankers on young stem and shoot, (d) size of canker on material stem, and (e) size of cankers mature stems. Cultivars Isunikankiyan, 81/00110, 82/00142, and 84751 had cankers developing at the lowest level showing that they were infected earlier in life whereas cultivars 81/01476, 30211, 60506, 82/00142, and 30001 had cankers higher up on the stem. These cultivars had tuberized before the onset of the disease hence yield may not adversely affected. Cultivars 81/00401, 82/00058, and 82/00142 had the highest number of cankers per plant whereas the least number of cankers were on cultivars 30211, 80/00141, 4(2)1443, 30337, and 82/00959.
Palavras-Chave: | Cultivares.
Thesagro: | Manihot Esculenta.
Categoria do assunto: | --
Registro original: | Embrapa Mandioca e Fruticultura (CNPMF)
Exemplares: | CNPMF - (13493-1) - ADD - PL - -- - 635.10601 - S989p - 1994000174 - DIS