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Calpún-INIA, Cultivar de Lenteja (Lens culinaris Medik.) de Grano Grande y Resistente a Roya Calpún-INIA, a large seed size and rust-resistant lentil (Lens culinaris Medik.) cultivar

Keywords: Lens culinaris , Uromyces fabae , Lens culinaris , Uromyces fabae , Araucana-INIA , Laird , Araucana-INIA , Laird

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Abstract:

Calpún-INIA es un cultivar de lenteja (Lens culinaris Medik.) resistente a la roya (Uromyces fabae Pers.), desarrollado por el ex Programa de Leguminosas de Grano del Instituto Nacional de Investigaciones Agropecuarias (INIA), Chile. Se origina de un cruzamiento entre el cultivar chileno Araucana-INIA susceptible a la roya y el cultivar canadiense Laird resistente a roya, utilizando precocidad, arquitectura de planta del tipo Araucana-INIA, tama o de grano, rendimiento de grano y resistencia a roya como criterios de selección. Calpún-INIA pertenece a los cultivares de tama o de grano grande (tipo macrosperma), con peso promedio de 8 g por 100 granos, y con tama o de grano de 7 mm superior a 65%. La semilla es parcialmente aplanada, de color verde claro a gris y de cotiledones amarillo pálidos. En promedio de temporadas, el rendimiento en grano de Calpún-INIA fue 17% inferior a Araucana-INIA, en evaluaciones realizadas en ambientes libres de roya. En tanto, su rendimiento supera a Araucana-INIA entre 60 a 95%, en ambientes donde la enfermedad es la principal limitante de producción. Calpún-INIA es el primer cultivar de lenteja desarrollado por INIA que combina alto rendimiento y calibre de grano, con resistencia a roya. Calpún-INIA is a rust (Uromyces fabae Pers.) resistant lentil (Lens culinaris Medik.) cultivar that was developed by the former Food Legume Program of the National Institute of Agricultural Research (INIA), Chile. It is derived from crosses between the Chilean rust-susceptible Araucana-INIA and the Canadian rust-resistant Laird cultivars, using earliness, Araucana-INIA’s type of plant architecture, seed size, seed yield and rust resistance as selection criteria. Calpún-INIA belongs to the large seeded cultivars (macrosperma type), averaging 8 g per 100 seeds, and > 65% of seeds retained in a 7 mm sieve. The seed is partially flattened, with pale green to grey background and pale yellow cotyledons. Averaged across years, the seed yield of Calpún-INIA was 17% lower than Araucana-INIA’s in rust-free environments, whereas Calpún-INIA out-yielded Araucana-INIA by 60 to 95% in environments where this disease is the main constraint for lentil production. Calpún-INIA is the first lentil cultivar released by INIA, combining high yield and large seed size with rust resistance.

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