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handle: 10261/21949
[ES] Se determinó la concentración de elementos minerales en flores y hojas de las variedades ‘Queen Giant’ y ‘Tebana’ [Prunus persica (L.) Batsch], injertadas sobre seis patrones híbridos almendro x melocotonero. El ensayo se estableció en un suelo pesado y calizo, con riego por inundación. Los elementos analizados fueron: N, P, K, Ca, Mg, Fe, Mn, Zn, Cu y Na. Se observó una clara influencia del patrón sobre la nutrición mineral, tanto en flores como en hojas. Se encontraron correlaciones significativas entre la concentración floral y foliar de Fe, P y Zn. La relación entre el Fe en flores y en hojas es interesante para un diagnóstico más temprano del estado nutricional de hierro en suelos calizos. También se observaron correlaciones significativas entre la concentración foliar de clorofila y la de K, Mn, Zn y Na en hojas, así como con la de Fe y Na en flores. La variedad ‘Queen Giant’ mostró más diferencias significativas que ‘Tebana’ en la nutrición mineral entre patrones. Considerando el índice 2D0P para ‘Queen Giant’, el patrón Felinem mostró un mayor desequilibrio nutricional comparado con Adarcias, Cadaman, Garnem y GF 677. El patrón Adafuel no difirió significativamente de todos los patrones estudiados.
[EN] Flower and foliar mineral element concentration of the nectarine ‘Queen Giant’ and the peach ‘Tebana’ [Prunus persica (L.) Batsch] grafted oil six peach x almond hybrids rootstocks were determined during one season. The orchard was located on a calcareous clay-loam soil, which was level-basin irrigated. The mineral elements analysed weie: N, P, K, Ca, Mg, Fe, Mn, Zn, Cu and Na. Rootstock influence on mineral nutrient uptake was observed in flowers and leaves. The Fe, P and Zn concentrations in flowers and leaves were significantly correlated. The correlation between leaf and flower Fe concentration shows interest to predict Fe status, early in the season, in calcareous soils. In addition, the chlorophyll concentration was significantly correlated with the foliar concentration of K, Mn, Zn and Na, as well as with flower concentration of Fe and Na. ‘Tebana’ cultivar exhibited less significant differences on mineral uptake among rootstocks than ‘Queen Giant’. For the latter cultivar, Felinem rootstock showed the worst balanced nutritional values (DOP index) compared with those of the other rootstocks, except Adafuel.
Este trabajo ha sido financiado por la Comisión Interministerial de Ciencia y Tecnología (proyecto AGL 2002-4219-C02-01) y por la Diputación General de Aragón (Proyecto A28). O. Zarrouk ha disfrutado de una beca predoctoral de la Agencia Española de Cooperación Internacional (AECI).
13 Pag., 2 Tabl.
Peer reviewed
patrón, foliar mineral analysis, Análisis floral, Análisis foliar, rootstock, melocotonero, flower mineral analysis, peach
patrón, foliar mineral analysis, Análisis floral, Análisis foliar, rootstock, melocotonero, flower mineral analysis, peach
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