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Artículo

Selection by seed weight improves traits related to seedling establishment in Panicum coloratum L. var. makarikariense

Giordano, Mabel CristinaIcon ; Berone, Germán Darío; Tomas, Maria Andrea
Fecha de publicación: 07/2013
Editorial: John Wiley & Sons Ltd
Revista: Plant Breeding
ISSN: 0179-9541
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Genética y Herencia

Resumen

Selection for heavy seed was implemented to overcome establishment problems in Panicum coloratum var. makarikariense. A collection covering the genetic diversity of the species available in Argentina was used as a base population (BP), and two cycles of recurrent phenotypic selection to increase seed weight were performed. Seedlings, obtained from seeds from each cycle and the BP, were further evaluated in the greenhouse. An increase of 17% in mean seed weight was obtained after two cycles of recurrent selection. No differences in germination or emergence were detected among the selected materials and the BP. However, seedlings from selected materials were taller and showed higher leaf elongation rate, adventitious roots elongation rate and total growth rate than that from BP. This research also revealed that in P. coloratum var. makarikariense, more vigorous seedlings can be selected from genotypes that produce heavier seeds.
Palabras clave: Recurrent Selection , Seed Weight , Seedling Establishment , Panicum , Plant Breeding , C4 Grasses
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/18884
DOI: http://dx.doi.org/doi:10.1111/pbr.12106
URL: http://onlinelibrary.wiley.com/doi/10.1111/pbr.12106/abstract
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Articulos(CCT - SANTA FE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - SANTA FE
Citación
Giordano, Mabel Cristina; Berone, Germán Darío; Tomas, Maria Andrea; Selection by seed weight improves traits related to seedling establishment in Panicum coloratum L. var. makarikariense; John Wiley & Sons Ltd; Plant Breeding; 132; 6; 7-2013; 620-624
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