Fecha/hora: 11/06/2024 22:27:09

Biblioteca(s): | INIA Las Brujas.
Fecha corriente: | 22/02/2021
Fecha de la última actualización: | 22/02/2021
Autoria: | CASTILLO, A.; CABRERA, D.; RODRIGUEZ, P.; ZOPPOLO, R.
Afiliación: | ALICIA MARIA CASTILLO SALLE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CARLOS DANILO CABRERA BOLOGNA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; PABLO ANDRES RODRIGUEZ BRUNO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ROBERTO JOSE ZOPPOLO GOLDSCHMIDT, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.
Título: | Improved micropropagation protocol for pear rootstocks of the OH×F series and a new selection. [Conference paper].
Año de publicación: | 2021
Fuente/Imprenta: | Acta Horticulturae, February 2021, N°1303, p. 107-112. DOI: https://doi.org/10.17660/ActaHortic.2021.1303.16
ISSN: | 0567-7572 (print); 2406-6168 (electronic)
DOI: | 10.17660/ActaHortic.2021.1303.16
Idioma: | Inglés
Notas: | Article history: Published 5 February 2021. In: Acta Horticulturae (ISHS) 1303: XIII International Pear Symposium, Montevideo, Uruguay.  Conveners: Roberto Zoppolo, Danilo Cabrera. Editors: Roberto Zoppolo, Danilo Cabrera, D. Granatstein.

Contenido:

Abstract.
Pear is one of the most important temperate fruit crops. Uruguay aims at producing pears of high quality to reach regional markets as well as those of the Northern Hemisphere. Nevertheless, local climate variability and soil conditions frequently pose sanitary challenges for pear production, mainly in the south of the country, where the major pear producing area is located. Some new rootstocks of the series Old Home × Farmingdale (OH×F, Pyrus communis L.) were introduced from the pear germplasm collection of the US Department of Agriculture, National Clonal Germplasm Repository - Corvallis (NCGR) to the country with the aim of evaluating new materials and trying to identify those better adapted to local soil and weather conditions. To reach a reasonable number of plants in the shortest possible time, in vitro multiplication system was selected. This work was carried out to develop a protocol of in vitro propagation of different rootstocks, in order to generate faster plantlet production with high quality. A group of five different rootstocks from the OH×F series was selected: OH×F 40, OH×F 69, OH×F 87, OH×F 217, OH×F 333, and a local material identified as 00LBPrSJ. All genotypes were cultured in the same culture medium, a modification of the MS mineral salts. OH×F 217 and OH×F 69 exhibited the lowest multiplication rate in the culture medium used and produced less than two shoots per explant compared with OH×F 40 that produced more than five. The local selection had an average performance with four shoots per explant. Rootstocks showed differences in percentage of rooting and the survival during the acclimation which suggests the potential development of genotype-specific protocols.
@ International Society for Horticultural Science.

Palabras-Clave: | IN VITRO; ROOTING; SHOOT PROLIFERATION; TISSUE CULTURE.
Categoría del tema: | F30 Genética vegetal y fitomejoramiento
Registro original: | INIA Las Brujas (LB)
Ejemplares: | LB - (102489-1) - PXI - AP - DD - PP/ACTA HORTICULTURAE/2021/1303 -  -  - DIS