Advertisement

Plant and Soil

, Volume 136, Issue 2, pp 231–238 | Cite as

The effect of constant moisture and aeration levels in soil on Fusarium wilt of tomatoes

  • Z. R. Frank
  • W. B. Verhaegh
  • J. W. Bakker
Article
  • 67 Downloads

Abstract

A method to investigate the effect of moisture-dependent soil aeration on plant disease is presented. Constant volumetric moisture contents between 22 and 39% in a loam were employed, and corresponding soil aeration levels were attained, by applying constant water pressures between −400 and −5 cm to the soil via tensiometer ceramic cups. In the range of available water, small changes in matric soil water potential resulted in large changes in soil aeration.

Young ‘Moneymaker’ tomato seedlings were inoculated withFusarium oxysporum lycopersici either by transplanting to infested soil, or by injecting the inoculum into the soil through preinserted tubes and thus avoiding wounding of roots. Two to three weeks later the effects of treatment were obvious. From comparison of infected plants to their controls in each moisture treatment it was inferred that, in the range of small matric potentials (i.e. wet soil), soil aeration is the decisive factor. In badly aerated soil, inoculated plants succumbed to disease. The combination of a good aeration with plenty available water was optimal to disease endurance. In the soil used, aeration changed from bad to sufficient between −10 to −60 cm matric potential.

Key words

disease endurance Fusarium oxysporum lycopersici Lycopersicum esculentum tensiometric soil moisture regulation 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Lemon E R and Erickson A E 1952 The measurement of O.D.R. in the soil with the platinum microelectrode. S.S.S.A. Proc. 16, 542–163.Google Scholar
  2. Heritage A D and Duniway J M 1985 Influence of depleted oxygen supply on Phytophthora root rot of safflower in nutrient solution.In Ecology and Management of Soilborne Plant Pathogens. Eds. Parker et al. pp 199–202. APS Press, St. Paul, MN.Google Scholar
  3. Miller D E and Burke D W 1975 Effect of soil aeration on Fusarium root rot of beans. Phytopathology 65, 519–523.Google Scholar
  4. Miller D E and Burke D W 1985 Effect of soil physical factors on resistance in beans to Fusarium root rot. Plant Disease 69, 324–327.Google Scholar
  5. Wu Lung-Chi and Scheffer R P 1962 Some effects of Fusarium infection of tomato on growth, oxidation and phosphorilation. Phytopathology 52, 354–358.Google Scholar

Copyright information

© Kluwer Academic Publishers 1991

Authors and Affiliations

  • Z. R. Frank
    • 1
  • W. B. Verhaegh
    • 2
  • J. W. Bakker
    • 2
  1. 1.The Institute of Plant ProtectionAgricultural Research Organization (A.R.O.), The Volcani CenterBet DaganIsrael
  2. 2.The Winand Staring CentreWageningenThe Netherlands

Personalised recommendations