Data/hora: 12/06/2024 04:27:25

Biblioteca(s): | Embrapa Mandioca e Fruticultura.
Data corrente: | 01/06/1993
Data da última atualização: | 01/06/1993
Autoria: | VUYLTEKE, D. R.; SWENNEN, R. L.; ORTIZ, R.
Afiliação: | International Institute of Tropical Agriculture (IITA), Onne Station, PMB5320, Ibadan, Nigeria;present address: Katholieke Universiteit Leuven, Laboratory of Tropical Crop Husbandry.
Título: | Development and performance of black sigatoka-resistant tetraploid hybrids of plantain (Musa spp., AAB group)
Ano de publicação: | 1993
Fonte/Imprenta: | Euphytica, v.65, n.1, p.33-42, 1992/1993
ISSN: | 0014-2336
Idioma: | Inglês
Conteúdo: | A strategy to control the black sigatoka disease (Mycospharella fijiensis Morelet) of plantain (Musa ssp., AAB group) in Africa, targeting the incorporation of durable host plant resistance, was initiated at the International Instituto of Tropical Africulture (IITA). the commonly accepted intractability of plantain to genetic improvement has been challenged by the identification of 37 different, seed-fertile plantain cultivars and by the production of 250 hybrids in four years fo breeding work. twenty tetraploid  hybrids have been selected for their increased black sigatoka resistance, high yields, large parthenocarpic fruits and improved ratooning. 'Calcutta 4'(Musa acuminata spp. burmannicoides) was the diploid male parent of 17 of the selected hybrids, which indicates that the inferior bunch characteristics of this wild banana were generally not transmitted to its tetraploid progenies. Conversely, the 4x progeny of plantain readily expressed black sigatoka resistance when crossed with 'Calcutta 4'. Progenies of the triploid plantain cvs. 'Obino l' Ewai' and 'Bobby Tannap' differed in their black sigatoka breeding values, the former producing larger numbers fo promising hybrids.
Palavras-Chave: | 2n eggs; FDR and SDR gametes; germplasm enhancement; Plantain; sigatoka resistance.
Thesagro: | Mycosphaerella Fijiensis.
Thesaurus Nal: | Musa.
Categoria do assunto: | --
Registro original: | Embrapa Mandioca e Fruticultura (CNPMF)
Exemplares: | CNPMF - (2077-1) - ADC - AP - -- - 575.05 -  - 575.05 - DIS