Field assessment of avocado rootstock selections for resistance to phytophthora root rot

L A Smith; E K Dann; K G Pegg; A W Whiley; Fiona Giblin; V Doogan; R Kopittke

doi:10.1007/s13313-010-0011-0

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Field assessment of avocado rootstock selections for resistance to phytophthora root rot

Journal article

Peer reviewed

Field assessment of avocado rootstock selections for resistance to phytophthora root rot

L A Smith, E K Dann, K G Pegg, A W Whiley, Fiona Giblin, V Doogan and R Kopittke

Australasian Plant Pathology, Vol.40(1), pp.39-47

2011

DOI: https://doi.org/10.1007/s13313-010-0011-0

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Abstract

persea americana

phytophthora cinnamomi

PRR

Phytophthora root rot (PRR), caused by P. cinnamomi, is a primary constraint on avocado productivity in Australia. Numerous field trials at sites in northern NSW and southern QLD have demonstrated significant variation in tree health amongst commercial rootstocks and recently selected material, grown under high PRR disease pressure. Selections 'SHSR-02', 'SHSR-04', ungrafted 'Hass' (rooted cuttings from clonal propagation) and the commercial rootstock 'Dusa"' were significantly healthier over time than other rootstocks, many of which died during the course of the trials. 'Reed' was consistently highly susceptible. In many cases superior tree health was associated with increased tree height and trunk girth. The trials also clearly demonstrate the negative impact of Phytophthora root rot on establishment of new avocado production blocks, and the importance of identifying and selecting avocado rootstock material that can withstand high P. cinnamomi disease pressure. © Australasian Plant Pathology Society Inc. 2010.

Details

Title: Field assessment of avocado rootstock selections for resistance to phytophthora root rot
Authors: L A Smith (Author) - Agri-Science Queensland, Department of Employment, Economic Development and Innovation
E K Dann (Author) - Agri-Science Queensland, Department of Employment, Economic Development and Innovation
K G Pegg (Author) - Agri-Science Queensland, Department of Employment, Economic Development and Innovation
A W Whiley (Author) - Sunshine Horticultural Services
Fiona Giblin (Author) - Agri-Science Queensland, Department of Employment, Economic Development and Innovation
V Doogan (Author) - Agri-Science Queensland, Department of Employment, Economic Development and Innovation
R Kopittke (Author) - Agri-Science Queensland, Department of Employment, Economic Development and Innovation
Publication details: Australasian Plant Pathology, Vol.40(1), pp.39-47
Publisher: Springer Netherlands
Date published: 2011
DOI: 10.1007/s13313-010-0011-0
ISSN: 0815-3191
Organisation Unit: University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99448822002621
Output Type: Journal article

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