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Título: | Characterisation of grain yield and nitrogen level in relation to flag leaf senescence of wheat varieties |
Autor: | Martín del Molino, I.; Ulloa, M.; Martínez-Carrasco, Rafael CSIC ORCID; Pérez Pérez, Pilar CSIC ORCID | Palabras clave: | Chlorophyll Free amino nitrogen Moisture percentage Proteinase Soluble proteins |
Fecha de publicación: | mar-1986 | Editor: | Wiley-Blackwell | Citación: | Physiologia Plantarum 66(3): 503-508 (1986) | Resumen: | Three wheat cultivars (Triticum aestivum L.), Splendeur, Hobbit and Maris Huntsman grown in pots were compared. Especially when compared to Splendeur, the flag leaf senesced most rapidly in Maris Huntsman, which presented the most rapid loss of moisture, chlorophyll and nitrogen. The uptake of exogenous nitrogen during the post-anthesis period was lower in the rapidly than in the slowly senescing variety. A higher concentration of free amino nitrogen in the flag leaf at a given sampling date was associated with a lower percentage decrease of soluble proteins at the following date. Acid proteinase activity in the flag leaf was inversely related to moisture percentage and free amino nitrogen level, but unrelated to the nitrogen loss of the flag leaf. Acid proteinase activity in the flag leaf was directly related to grain nitrogen percentage, but inversely related to grain yield. Grain yield was also directly related to the mean soluble protein content of the flag leaf through senescence. | Versión del editor: | http://dx.doi.org/:10.1111/j.1399-3054.1986.tb05958.x | URI: | http://hdl.handle.net/10261/271258 | DOI: | :10.1111/j.1399-3054.1986.tb05958.x | Identificadores: | doi: :10.1111/j.1399-3054.1986.tb05958.x issn: 0031-9317 e-issn: 1399-3054 |
Aparece en las colecciones: | (IRNASA) Artículos |
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