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  • Changes in foliar host reaction to Ascochyta rabiei with plant maturity

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    Author(s)
    L. Elliott, Vicki
    W.J. Taylor, Paul
    Ford, Rebecca
    Griffith University Author(s)
    Ford, Rebecca
    Year published
    2013
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    Abstract
    Ascochyta rabiei is the most significant foliar disease of chickpea (Cicer arietinum) worldwide, and can cause both yield loss and reduced seed quality. Significant mean disease score differences were observed from the reactions among a collection of Ascochyta rabiei isolates and chickpea hosts at both seedling and maturity growth stages (P<0.000). Although isolates ranked similarly within their range of pathogenicity at either growth stage, the ranking of host disease reaction was different. This suggests that genotype-specific expression of resistance genes to A. rabiei may be related to growth stage. Hence, durable selection ...
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    Ascochyta rabiei is the most significant foliar disease of chickpea (Cicer arietinum) worldwide, and can cause both yield loss and reduced seed quality. Significant mean disease score differences were observed from the reactions among a collection of Ascochyta rabiei isolates and chickpea hosts at both seedling and maturity growth stages (P<0.000). Although isolates ranked similarly within their range of pathogenicity at either growth stage, the ranking of host disease reaction was different. This suggests that genotype-specific expression of resistance genes to A. rabiei may be related to growth stage. Hence, durable selection methods for resistance will require screening of isolates representative of the pathogenicity within the population on target genotypes at growth stages representative of the type of resistance being sought, for example seedling resistance or pod resistance.
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    Journal Title
    Journal of Agricultural Science
    Volume
    5
    Issue
    7
    DOI
    https://doi.org/10.5539/jas.v5n7p29
    Copyright Statement
    © The Author(s) 2013. This is an Open Access article distributed under the terms of the Creative Commons Attribution 3.0 Unported (CC BY 3.0) License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
    Subject
    Crop and Pasture Protection (Pests, Diseases and Weeds)
    Agricultural and Veterinary Sciences
    Publication URI
    http://hdl.handle.net/10072/66711
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    • Journal articles

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