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Commercial varieties of cardoon in Navarra

Macua, J.I., Lahoz, I., Malumbres, A., Garnica, J., Urmeneta, I., Arrondo, M.A.
Acta horticulturae 2004 no.660 pp. 215-220
Cynara cardunculus, cardoons, leaves, plant adaptation, varieties, Spain
Cardoon is harvested with great tradition in Navarra, with the majority prepared as industrial consumption. Production and agricultural characteristics of different commercial varieties of cardoon were evaluated to see their adaptation to our cultivation zone. The varieties studied were: 'Blanco de Peralta', 'Lleno de España', 'Verde de Peralta', 'Verde de Tafalla', 'Rojo de Corella' and 'Blanco de Valencia'. One can note the significant differences in production among varieties. The varieties, with the greatest production were: 'Blanco de Peralta', 'Verde de Peralta', 'Verde de Tafalla' and 'Lleno de España', with 81, 79, 77 and 70 t ha-1 respectively . The least productive variety was the 'Blanco de Valencia with 59.6 t ha-1. The differences in production are due mainly to the significant differences existing among varieties with respect to weight and not so much to commercial number of units. The cardoon with the most significant average weight (up to 80 centimetres in length) corresponded to the variety Blanco de Peralta (8 kg). In the remainder of varieties, the average weight ranged between 6.3 kg for Blanco de Valencia and 7.8 kg for Verde de Peralta. In leaf production of first quality, the Blanco de Peralta and Blanco de Valencia had the greatest emphasis, with the Verde de Peralta being the variety with a smaller production of leaves.