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Inter-relationship between shoot weight, severity of root rot and survival rate of subterranean clover inoculated with certain pathogenic fungi

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Summary

Plant survival rate, root disease index and fresh shoot weight of subterranean clover seedlings inoculated with fungal pathogens (Fusarium avenaceum, F. oxysporum, Phoma medicaginis, Pythium irregulare andRhizoctonia solani, both singly and in combinations) were generally inter-correlated over a wide range of temperature (10, 15, 20 and 25°C) and moisture conditions (45, 65% water holding capacity and flooding). There was a negative correlation between root disease index and shoot weight for all treatments exceptF. avenaceum + P. irregulare. Root disease index and seedling survival rate were negatively correlated except forF. oxygsporum, Phoma medicaginis, P. irregulare andF. oxysporum + F. avenaceum. However, a good positive correlation was found between the survival rate and shoot weight for all treatments with the exception ofPhoma medicaginis.

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Authors and Affiliations

  1. Soil Science and Plant Nutrition Group, School of Agriculture, University of Western Australia, 6009, Nedlands, Western Australia

    D. H. Wong, M. F. D'antuono & K. Sivasithamparam

  2. Western Australian Department of Agriculture, Jarrah Road, 6151, South Perth, Western Australia

    M. J. Barbetti

Authors
  1. D. H. Wong
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  2. M. F. D'antuono
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  3. M. J. Barbetti
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  4. K. Sivasithamparam
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Wong, D.H., D'antuono, M.F., Barbetti, M.J. et al. Inter-relationship between shoot weight, severity of root rot and survival rate of subterranean clover inoculated with certain pathogenic fungi. Plant Soil 96, 141–143 (1986). https://doi.org/10.1007/BF02375004

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  • DOI: https://doi.org/10.1007/BF02375004

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