New Zealand Journal of Crop and Horticultural Science abstracts

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Effect of active carbonate, exchangeable calcium, and stoniness of soil on Tuber melanosporum carpophore production

L. G. García-Montero

Department of Forestry Engineering
U.D. Operaciones Básicas
Technical University of Madrid (UPM)
ETSI Montes
Ciudad Universitaria s/n, Madrid 28040
Spain
email: luisgonzaga.garcia@upm.es

M. A. Casermeiro
I. Hernando
J. Hernando

Department of Soil Science
Facultad de Farmacia
University Complutense of Madrid
Ciudad Universitaria s/n, Madrid 28040
Spain

Abstract In the present study, the active carbonate soil concentration explained 43% of the variancein Tuber melanosporum production. This carbonate is also associated with other soil variables, such as pH, exchangeable Ca2+ content, and stoniness abundance, all of which affect the successful productivity of T. melanosporum carpophores. Moreover, active carbonate and exchangeable Ca2+ participate in the maintenance of the soil’s structure and in fungus nutrition. Statistical analysis shows that active carbonate accounted for 42% of the variance in exchangeable Ca2+ concentration, and the exchangeable Ca2+ abundance explained 20% of the variance in carpophore production. In addition, a significant correlation was found between carbonate concentration and surface stoniness. Finally, abundance of surface stoniness explained 24% of the variance in T. melanosporum carpophore production. We suggest that studies should be conducted on the effects of amendments in truffle culture.

Keywords black truffle; truffle culture; Mediterranean mushroom; mycorrhizal fungi; Tuber melanosporum

New Zealand Journal of Crop and Horticultural Science, 2007, Vol. 35: 139–146
0014–0671/07/3501–0139      © The Royal Society of New Zealand 2007
H06067; Online publication date 4 April 2007. Received 17 July 2006; accepted 7 February 2007

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