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Recolector de Ciencia Abierta, RECOLECTA
Doctoral thesis . 2010
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Repositori Obert UdL
Doctoral thesis . 2011
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Efecto de la salinidad sobre la cebada (Hordeum vulgare L.). Análisis de caracteres morfo-fisiológicos y su relación con la tolerancia a la salinidad

Authors: Isla Climente, Ramón;

Efecto de la salinidad sobre la cebada (Hordeum vulgare L.). Análisis de caracteres morfo-fisiológicos y su relación con la tolerancia a la salinidad

Abstract

La superficie agrícola de nuestro planeta afectada por salinidad y/o alcalinidad es de alrededor de mil millones de hectáreas (Szabvolcs, 1989) varía, según las fuentes consultadas, desde valores de 230 millones hasta casi mil millones de hectáreas (Epstein et al., 1980), estando presente en todos los continentes. Otras estimaciones (Reeve y Fireman, 1967) indicanhablan de que un tercio de la superficie mundial de bajo riego(unas 230 millones de hectáreas) se encuentran afectadas en mayor o menor grado por la salinidad. A pesar de las discrepancias en las cifras, debido a que se trata de meras estimaciones y no a al resultado de una cartografía adecuada, la dimensión del problema es importante ya que, junto a la sequía, es el factor abiótico que produce un mayor descenso en el rendimiento de los cultivos. En algunos países como Paquistán, 16 millones de hectáreas han sido salinizadas en procesos de salinización secundarios inducidos por la puesta en regadío, siendo uno de los problemas económicos más importantes del país (Ahmad, 1965).

La superfície agrícola del nostre planeta afectada per salinitat i/o alcalinitat és de prop de mil milions d'hectàrees (Szabvolcs, 1989) varia, segons les fonts consultades, des de valors de 230 milions fins gairebé mil milions d'hectàrees (Epstein et al., 1980), estant present en tot s els continents. Altres estimacions (Reeve i Fireman, 1967) indiquen que un terç de la superfície mundial de baix reg (unes 230 milions d'hectàrees) es troben afectades en major o menor grau per la salinitat. A pesar de les discrepàncies en les xifres, pel fet que es tracta de meres estimacions i no a a el resultat d'una cartografia adequada, la dimensió del problema és important ja que, al costat de la sequera, és el factor abiòtic que produeix un major descens en el rendiment dels conreus. En alguns països com Paquistan, 16 milions d'hectàrees han estat salinizades en processos de salinització secundaris induïts per la posada en regadiu, sent un dels problemes econòmics més importants del país (Ahmad, 1965).

Country
Spain
Keywords

Suelos y riegos, Tolerancia a la sal, conreus, Salinidad del suelo, ordi, Relaciones planta suelo, salinitat, 633, Métodos estadísticos, Ciències experimentals de la natura i la vida, Cebada

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selected citations
These citations are derived from selected sources.
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).
BIP!Citations provided by BIP!
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).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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Green