Influence of different salinity levels on morphological aspects of eucalyptus urograndis seedlings
This study was set up in protected environment at the Agricultrural Engeneering Department, FCA – UNESP, Botucatu – SP. Washed thin sand were used in black PVC pots (14 L volume), whose water content were mantained close to-0.01 MPa. The objective was to evaluate the influence of five levels of sali...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2009 |
| País: | Brasil |
| Institución: | Universidade Estadual Paulista (UNESP) |
| Repositorio: | Repositório Institucional da UNESP |
| Idioma: | portugués |
| OAI Identifier: | oai:repositorio.unesp.br:11449/226297 |
| Acceso en línea: | http://dx.doi.org/10.15809/IRRIGA.2009V14N1P68-75 http://hdl.handle.net/11449/226297 |
| Access Level: | acceso abierto |
| Palabra clave: | Eucaliptus Irrigation NaCl |
| Sumario: | This study was set up in protected environment at the Agricultrural Engeneering Department, FCA – UNESP, Botucatu – SP. Washed thin sand were used in black PVC pots (14 L volume), whose water content were mantained close to-0.01 MPa. The objective was to evaluate the influence of five levels of salinity: 1,41; 2,50; 4,50; 6,45 and 8,33 dS m -1 on Eucalyptus urograndis seedlings through some morphological parameters. Ten replicates under completely randomized design were used. The results showed that the most of morphological characteristics decreased followed by increased soil salinity: until 8,33 dS m -1 did not afected initial seedling growth; from 4,50 dSm- 1 , there was height and diameter growth decrease after 30 days of stress; there was less aereal part and root dry matter up to 4,50 dSm -1 . Leaf área was the most affected variable under salinity applied, with visible decrease from 4,50 dS m -1 electric conductivity. |
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