Data/hora: 25/06/2024 13:05:47

Biblioteca(s): | Embrapa Mandioca e Fruticultura.
Data corrente: | 11/11/1993
Data da última atualização: | 11/11/1993
Autoria: | BAKRY, F.; HORRY, J. P.
Afiliação: | CIRAD-FLHOR, Station de Neufchateau, Sainte-Marie, 97130 Capesterr Belle-Eau, Guadeloupe.
Título: | Tetraploid hybrids from interploid 3X/2X crosses in cooking bananas.
Ano de publicação: | 1992
Fonte/Imprenta: | Fruits, v.47, n.6, p.641-647, 1992.
ISSN: | 0248-1294
Idioma: | Inglês
Conteúdo: | The genetic improvement program of CIRAD-FLHOR for bananas and based in the short term, on obtaining tetrapliod hybrids acording to a crossing sheme which uses a triploid cultivated variety as famale perent and natural or hybris diploid varieties as male perents. This article reports our preliminary results on evaluation of the fertility of 38 varieties of the type French plantain and 5 varientes of the sub-group Popoulou/Maia Maoli (all cooking types), polinated repeatedly by the wild species Musa acuminata burmannicoides (clones Calcutta 4). The quality of seeds from these crosses was studied and chromosome number distribuitions of progenies checked by chromosome counting. With these crosses, 40-50% of seeds collected contained no embryo. In vitro, the quality and percentage of germination (37-100%) varied considerably as a function of seed quality. Moreover, no relation was found between seed quality and the chromosome number in the embryos. Some tetraploid and heptaploid hibrids from Popoulou/Maia Maoli and Plantain were obtained from good seeds with endosperm.
Palavras-Chave: | Cultivares; Invitro.
Thesagro: | Embrião; Musa Acuminata; Semente.
Thesaurus Nal: | Musa balbisiana.
Categoria do assunto: | --
Registro original: | Embrapa Mandioca e Fruticultura (CNPMF)
Exemplares: | CNPMF - (2292-1) - ADC - AP - -- - 634.05 -  - 634.05 - DIS