New Zealand Journal of Crop and Horticultural Science abstracts

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Effect of mulching on Tuber uncinatum ectomycorrhizas in an experimental truffière

A. Zambonelli¹
M. Iotti¹
F. Zinoni²
E. Dallavalle¹
I. R. Hall³

¹Dipartimento di Protezione e Valorizzazione Agroalimentare
via Fanin 46
40127 Bologna, Italy
email: zambonel@agrsci.unibo.it
²Agenzia Regionale Prevenzione e Ambiente dell’Emilia Romagna
Servizio Meteorologico Regionale
V. le Silvani 6
40122 Bologna, Italy
³Department of Botany
University of Otago
P.O. Box 56
Dunedin, New Zealand

Abstract  A study was conducted on the effects of different mulching materials on Tuber uncinatum (the Burgundy truffle) ectomycorrhizas in a 6-year-old experimental truffière. The mulching materials were wheat straw, an aluminised cloth, a black mulching cloth, and a sub-watering cloth. Three years after the start of the experiment the mulches significantly influenced the degree of ectomycorrhizal colonisation in the upper 0-15 cm of soil. The sub-watering cloth stimulated T. uncinatum colonisation and depressed the development of the contaminant ectomycorrhizal fungi that were promoted by the black mulch. Both straw and the black mulch depressed T. uncinatum infection. The mulches appear to have had their effects on ectomycorrhizal colonisation via their impact on soil temperature and moisture.

Keywords  mulching; Tuber uncinatum; ectomycorrhizal morphotypes; soil moisture; soil temperature

H04062; Online publication date 8 March 2005 Received 21 July 2004; accepted 9 November 2004
New Zealand Journal of Crop and Horticultural Science, 2005, Vol. 33: 65–73
0014-0671/05/3301-0065 © The Royal Society of New Zealand 2005

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