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Título: | Field screening of barley cultivars to soil salinity using a sprinkler and a drip irrigation system |
Autor: | Isla Climente, Ramón CSIC ORCID; Royo, Antonio CSIC; Aragüés Lafarga, Ramón CSIC | Palabras clave: | Barley drip irrigation leaf ion concentration salinity tolerance triple line sourcesprinkler irrigation |
Fecha de publicación: | nov-1997 | Editor: | Springer Nature | Citación: | Plant and soil 197 (1): 105-117 (1997) | Resumen: | The establishment of proper agronomical practices and plant breeding programs for saline environments is limited by the lack of adequate field screening methods. We assessed the relationships between leaf ion concentration and grain yield in a set of barley cultivars and compared their ranking for salinity tolerance established with a triple-line-source (TLS) sprinkler system, where the absorption of salts is through the leaves and the roots, with that obtained with a drip-irrigation (DI) system, where the absorption of salts is only through the roots. The saline solution in both systems was made up of sodium and hydrated calcium chloride (1:1 w/w). Except for the highest saline treatments, direct leaf absorption of toxic Na+ and Cl- was minor or negligible, but it was substantial for Ca2+. Irrespective of barley cultivar and leaf age, the accumulation of Cl- in the TLS was 1.5 to 2.5 times greater than Na+. There was no significant correlation between grain yield and leaf sap ion concentration among eighteen barley cultivars. Thus, leaf ion concentrations should not be used as screening tools in breeding programs for increasing salinity tolerance in barley. The highest-yielding cultivars under non-saline conditions were also most productive under moderately saline conditions, though not under high-saline conditions. Although grain yields of the eighteen barley cultivars in the TLS were substantially lower than in the DI, the salinity tolerances estimated in both systems were significantly correlated (P<0.05), indicating that the simple and inexpensive TLS irrigation system could be successfully used in screening for salinity tolerance in barley. | Descripción: | 30 Pag., 4 Tabl., 6 Fig. The definitive version is available at: http://www.springerlink.com/content/0032-079x/ | Versión del editor: | http://dx.doi.org/10.1023/A:1004240622652 | URI: | 10261/38455 | DOI: | 10.1023/A:1004240622652 | ISSN: | 0032-079X | E-ISSN: | 1573-5036 |
Aparece en las colecciones: | (EEAD) Artículos |
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AraguesR_PlantSoil_1997.pdf | 207,97 kB | Adobe PDF | Visualizar/Abrir |
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