Data/hora: 16/06/2024 10:29:46

Biblioteca(s): | Embrapa Mandioca e Fruticultura.
Data corrente: | 06/06/2000
Data da última atualização: | 06/06/2000
Autoria: | OLLITRAULT, P.; DAMBIER, D.; FROELICHER, Y.; BAKRY, F.; AUBERT, B.
Afiliação: | CIRAD-FLHOR, Montpellier, France.
Título: | Rootstock breeding strategies for the mediterranean citrus industry; the somatic hybridization potential
Ano de publicação: | 1998
Fonte/Imprenta: | Fruits, v.53, n.5, p.335-344, Paris, France, 1998
ISSN: | 0248-1294
Idioma: | Inglês
Conteúdo: | Sour orange was the dominant rootstock used in the mediterranean basin, however, because of the spread of citrus tristeza virus (CTV), there is an urgency to develop alternative rootstocks resistant to tristeza and well adapted to the constraints of the area. The major problems affecting this citrus area are salinity, alkaline pH due to calcareous soils, tristeza, nematodes and Phytophthora. A new generation of rootstocks exhibiting good grafting compatibilities with local cultivars of citrus, and cumulating tolerance to these constraints must be woked out. Interesting traits of tolerance for biotic and abiotic stresses are present in the citrus and citrus-relative gene pools. To use this genetic diversity, the sexual recombination presents some limits because of the citrus reproductive biology and the high degree of heterozygosity of most citrus cultivars and rootstocks; on the other hand, the somatic hybridization is more promising for obtaining good agronomical traits and tolerance to pathogens such as tristeza and Phytophthora.
Palavras-Chave: | Mediterranean zone; Plant biotechnology.
Thesaurus Nal: | Citrus; rootstocks; selection criteria; somatic hybridization.
Categoria do assunto: | --
Registro original: | Embrapa Mandioca e Fruticultura (CNPMF)
Exemplares: | CNPMF - (5136-1) - ADD - AP - -- - 634.05 -  - 634.05 - DIS