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Caracterización agromorfológica de accesiones del género Agrostis: primer año de ensayo

Authors: Oliveira Prendes, J. A.; Mayor López, M.; Khouri, E. Afif; Lindner Selbmann, Ruth;

Caracterización agromorfológica de accesiones del género Agrostis: primer año de ensayo

Abstract

[ES] En este trabajo se muestran los resultados del primer año de caracterización agromorfológica de veintitrés accesiones del genero Agrostis recogidas en el Norte de España, junto con los cultivares comerciales ‘Golfin’ de Agrostis capillaris y ‘Penncross’ de Agrostis stolonifera. La caracterización se realizó desde el otoño de 2003 al otoño de 2004 en una finca de una agricultora del concejo de Carreño (Asturias) a 90 m.s.m. Se emplearon 13 caracteres agromorfológicos evaluados en un campo de plantas aisladas con dos repeticiones de 15 plantas por accesión. Se determinó también el número de cromosomas de cada accesión mediante tinción Feulgen y observación microscópica. Los análisis de varianza de los datos cuantitativos y test no paramétrico de la U de Mann-Whitney para la presencia o ausencia de estolones mostraron diferencias significativas (p < 0,05) entre las accesiones, salvo para las variables susceptibilidad de enfermedades de hoja en otoño, longitud total de la planta y longitud de hoja bandera. Dieciséis de las accesiones fueron tetraploides, tres diploides y cuatro hexaploides. Salvo tres accesiones anuales, el resto fueron perennes. El 26% de las accesiones presentó estolones.

[EN] In this work, we showed the results of the first year of agromorphological characterisation of 23 Agrostis accessions collected in the North of Spain, together with the commercial cultivars ‘Golfin’ of Agrostis capillaris and ‘Penncross’ of Agrostis stolonifera. Characterisation was carried out from autumn 2003 to autumn 2004 on a farmer field in the Carreño countryside (Asturias) at 90 m.a.s.l. Thirteen agromorphological traits were evaluated on a nursery field, with two replications of 15 plants per accession. Chromosome number was also determined on each accession using the Feulgen staining method. Analysis of variance for quantitative traits and non-parametric test U of Mann-Whitney for presence or absence of stolons, showed significant differences (p < 0,05) among accessions, except for the susceptibility of autumn foliar diseases, total plant length and flan leaf length. Sixteen of the accessions were tetraploids, three diploids and four hexaploids. Except three annual accessions, all the rest were perennials. Twenty six percent of the accessions had stolons.

Este trabajo se ha podido realizar gracias a la financiación concedida al proyecto "Prospección y recogida de recursos fitogenéticos autóctonos de leguminosas de la Cordillera Cantábrica y caracterización primaria de entradas de Agrostis" (RF-025-C2-1), financiado por el Ministerio de Ciencia y Tecnología dentro de la acción estratégica de conservación de los recursos genéticos de interés agroalimentario.

7 págs, 1 figura.-- Comunicación presentada a la XLV Reunión Científica de la Sociedad Española para el Estudio de los Pastos: "Producciones agroganaderas: gestión eficiente y conservación del medio natural" (Gijón, 28 de mayo al 3 de junio de 2005).

Peer reviewed

Country
Spain
Related Organizations
Keywords

Gramíneas cespitosas, Recursos fitogenéticos, Turf grasses, Asturias, Genetic resources

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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