SciELO - Scientific Electronic Library Online

 
vol.40 número3Efectos interactivos del exceso de boro y salinidad en la histología y ultraestructura de hojas de Zea mays amylacea del valle de Lluta (Arica-Chile)Establecimiento al cultivo in vitro de Luma chequen a partir de segmentos nodales índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

Compartir


Ciencia e investigación agraria

versión On-line ISSN 0718-1620

Resumen

ESCOBAR, Hugo et al. Saline-boron stress in northern Chile olive accessions: water relations, B and Cl contents and impact on plant growth. Cienc. Inv. Agr. [online]. 2013, vol.40, n.3, pp.597-607. ISSN 0718-1620.  http://dx.doi.org/10.4067/S0718-16202013000300012.

H. Escobar, N. Lara, Y. Zapata, C. Urbina, M. Rodriguez, and L. Figueroa. 2013. Saline-boron stress in northern Chile olive accessions: water relations, B and Cl contents and impact on plant growth. Cien. Inv. Agr. 40(3): 597-607. The objective of this study was to analyze the effect of saline-boron stress on the vegetative growth, dry leaf weight, water potential (Ψw), relative water content, and leaf and root B and Cl- contents in 8 accessions of olive. Rooted one-year-old plants were cultivated for 132 days with 50% shading in 5-L pots containing sand substrate and watered with Jensen's nutrient solution. After eight days of uniform ferti-irrigation, the plants were exposed to saline-boron stress, which was administered in three successive stages to condition them to a final stress of 0.49 mM B(OH)3 and 200 mM NaCl. The accessions were identified by their place of origin as Suca, Chiza, San Pedro I (SPI), Taltal, Azapa, San Pedro II (SPII), Frantoio and Lluta. The results showed that saline-boron stress decreased vegetative growth and dry matter in all accessions. The levels of Cl- in leaves and roots increased significantly, although Suca and SPI experienced the least increases. B increased in leaves and roots but did not reach toxic levels. Water potential decreased except in the accession Taltal. RWC decreased in all accessions. Cv. Frantoio, known internationally for its high salt tolerance, was used as a reference for the observed responses in the other accessions.

Palabras clave : Boron; chloride; olive; salinity; water relations.

        · resumen en Español     · texto en Inglés     · Inglés ( pdf )

 

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons