Occurrence and infectivity of vesicular-arbuscular mycorrhizal fungi in north-western Italy vineyards

Authors

  • A. Schubert
  • M. C. Cravero

DOI:

https://doi.org/10.5073/vitis.1985.24.129-138

Keywords:

mycorrhiza, infectivity, soil, acidity, phosphorus, host plant, Italy

Abstract

12 vineyards were surveyed during one year to assess root VA infection and spare population in the soil. 9 fungal species were present; 3 of them were more common and could be reinoculated successfully on grapevine. Other crops, in sites close to the vineyard sampled, often contained a different population of species. More species were present in soils of pH > 7.5.
Spores were most abundant in autumn, their number decreasing in spring. Soils with least P and higher pH contained more spores. Root infection was unrelated to spare frequency or soil characters.
Infectivity of the soil on grapevine plants, assessed by means of the MPN method, was weil related to the number of spores present in the soil at the same time, if roots were removed. lt is concluded that spore numbers can express the ability of the soil to infect plants, thus showing where artificial inoculation could be potentially more effective.

Downloads

Published

2015-12-17

Issue

Vol. 24 No. 2 (1985): VITIS

Section

Article

License

The content of VITIS is published under a Creative Commons Attribution 4.0 license. Any user is free to share and adapt (remix, transform, build upon) the content as long as the original publication is attributed (authors, title, year, journal, issue, pages) and any changes to the original are clearly labeled. We do not prohibit or charge a fee for reuse of published content. The use of general descriptive names, trade names, trademarks, and so forth in any publication herein, even if not specifically indicated, does not imply that these names are not protected by the relevant laws and regulations. The submitting author agrees to these terms on behalf of all co-authors when submitting a manuscript. Please be aware that this license cannot be revoked. All authors retain the copyright on their work and are able to enter into separate, additional contractual arrangements.