Efecto del portainjerto en la tolerancia de plantas de palto cv. Hass al estrés por NaCl

Translated title of the contribution: Rootstock effect on the tolerance of avocado plants cv. hass to NaCl stress

V. Mónica Castro, E. Rodrigo Iturrieta, O. Claudia Fassio

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

The avocado tree (Persea americana Mill.) is one of the species most sensitive to salinity. Since the root system of this species is particularly affected by this type of stress, it is crucial to find a rootstock that is tolerant to saline water irrigation. Plant material from the cv. Hass was grafted on five rootstocks to find possible candidates: the clonal 'Duke 7', 'Nabal', 'Degania 117','Mexicola', and 'Zutano' seedlings. One year-old plants were placed in 55 L pots; river sand was used as substrate, and the plants were fertilized with a modified Hoagland solution. Vegetative growth and internal nutrient content were compared with control plants with 30 mg L-1 of Cl-, and plants treated with 200 mg L-1 Cl-for 130 days using NaCl in the nutrient solution (5.64 mM). No interaction between NaCl and the rootstocks for the vegetative growth variables was detected neither in K+ internal foliar or root content nor Ca+2 root. With regard to the carbon assimilation rate, the Nabal rootstock showed the highest rates under the NaCl treatment by retaining the highest chloride concentration in the roots and greatly limiting the concentration found in the leaves of the cv. Hass. It is therefore a promising rootstock for salt tolerance.

Translated title of the contributionRootstock effect on the tolerance of avocado plants cv. hass to NaCl stress
Original languageSpanish
Pages (from-to)316-324
Number of pages9
JournalChilean Journal of Agricultural Research
Volume69
Issue number3
StatePublished - Jul 2009
Externally publishedYes

Fingerprint

Dive into the research topics of 'Rootstock effect on the tolerance of avocado plants cv. hass to NaCl stress'. Together they form a unique fingerprint.

Cite this