Journal article
Phosphonate applied as a pre-plant dip controls Phytophthora cinnamomi root and heart rot in susceptible pineapple hybrids
Australasian plant pathology, Vol.41(1), pp.59-68
01/2012
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Source: InCites
Abstract
The effectiveness of pre-plant dips of crowns in potassium phosphonate and phosphorous acid was investigated in a systematic manner to develop an effective strategy for the control of root and heart rot diseases caused by Phytophthora cinnamomi in the pineapple hybrids 'MD2' and '73-50' and cultivar Smooth Cayenne. Our results clearly indicate that a high volume spray at planting was much less effective when compared to a pre-plant dip. 'Smooth Cayenne' was found to be more resistant to heart rot than 'MD2' and '73-50', and 'Smooth Cayenne' to be more responsive to treatment with potassium phosphonate. Based on cumulative heart rot incidence over time 'MD2' was more susceptible to heart rot than '73-50' and was more responsive to an application of phosphorous acid. The highest levels of phosphonate in roots were reached one month after planting and levels declined during the next two months. Pre-plant dipping of crowns prior to planting is highly effective to control root and heart rot in the first few months but is not sufficient to maintain health of the mother plant root system up until plant crop harvest when weather conditions continue to favour infection.
Details
- Title
- Phosphonate applied as a pre-plant dip controls Phytophthora cinnamomi root and heart rot in susceptible pineapple hybrids
- Creators
- J. M. Anderson - Queensland Department of Science, Information Technology, Innovation and the ArtsK. G. Pegg - Queensland Department of Science, Information Technology, Innovation and the ArtsC. ScottA. Drenth - University of Queensland
- Publication Details
- Australasian plant pathology, Vol.41(1), pp.59-68
- Publisher
- Springer Nature
- Number of pages
- 10
- Grant note
- Rural Industries Research and Development Corporation Horticulture Australia Ltd.; Horticulture Australia Limited Golden Circle Pty Ltd
- Identifiers
- 991013034985502368
- Academic Unit
- Science; Faculty of Science and Engineering
- Language
- English
- Resource Type
- Journal article