Performance of "B. rapa" varieties as turnip greens and turnip tops. Effect of environment and genotype

Brassica rapa is an important species of the genus Brassica widely cultivated in the world as a vegetable and for edible and industrial oil. In Galicia (Northwestern Spain) and in the coldest regions of Portugal Brassica rapa subsp. rapa L. includes three different crops: turnips, turnip greens and...

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Detalhes bibliográficos
Autores: Francisco Candeira, Marta, Velasco Pazos, Pablo, Lema Márquez, Margarita, Cartea González, María Elena
Formato: artículo
Fecha de publicación:2011
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/46296
Acesso em linha:http://hdl.handle.net/10261/46296
Access Level:acceso abierto
Palavra-chave:Brassica rapa
Breeding programs
Spain
Varieties
Descrição
Resumo:Brassica rapa is an important species of the genus Brassica widely cultivated in the world as a vegetable and for edible and industrial oil. In Galicia (Northwestern Spain) and in the coldest regions of Portugal Brassica rapa subsp. rapa L. includes three different crops: turnips, turnip greens and turnip tops. Turnips are the thickened roots, turnip greens are the young leaves harvested in the vegetative period, while turnip tops are the floral shoots and surrounding leaves. They have been under cultivation for a large period since they were among the first vegetables to be introduced into the Western Iberian Peninsula (Gómez-Campo, 1999). A collection of B. rapa subsp. rapa from northwestern Spain is currently kept at ‘Misión Biológica de Galicia’ (CSIC, Spain). This collection was preliminary evaluated based on agronomical and morfological traits by Padilla et al. (2005). One hundred and twenty B. rapa varieties of this collection were evaluated finding that in many cases, the same landrace is sown for more than one purpose. However, the potential yield of these varieties and the stability of performance have yet not been explored. Based on this previous clasification twelve varieties were selected with the aim of determining the most promising varieties for turnip greens and/or turnip tops fresh production to be included in future breeding programs.