Plant Diversity ›› 2009, Vol. 31 ›› Issue (S16): 100-102.

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Mycorrhization: Tuber borchii Vittad . Competitivity with Respect to Other Species of Tuber

Donnini D., Baciarelli Falini L. , Di Massimo G ., Benucci G . M . N ., Bencivenga M .   

  1. Department of Applied Biology, University of Perugia , Borgo XX Giugno , 74-I 06121 Perugia, I taly
  • Online:2009-12-25 Published:2009-12-25
  • Contact: Donnini D.

Abstract: In truffle beds planted in environments not suitable for the truffle species chosen , mychorrhizal substitution usually takes place after a period of time . The present work was aimed at verifying the capacity of mycorrhization of Tuber borchii Vittad . in the presence of other Tuber species in the soil . Some young plants of Quercus pubescens Willd . were inoculated in the same conditions using two different substrates (natural and artificial substrate ) and different species of Tuber as inoculum. In fall 2004 , spring 2005 and in spring 2006 , the percentage of mycorrhization for each of the species of fungi involved was assessed in 32% of the plants in each inoculation test . The most abundant mycorrhizae of T. borchii were detected in roots of plants grown in natural soil . But T. brumale Vittad . shows remarkable percentages of mycorrhization ( up to 50%) and seems to substitute T. borchii in some cases . The results indicate that truffle beds of T. melanosporum Vittad . and
T. aestivum Vittad . planted in soils containing propagation elements of T. borchii do not give the desired production .

Key words: Mycorrhization