Volume 19 Part 1 Article 160: Influence of some management practices on the fruiting of Amanita caesarea in a chestnut grove

Volume 19 Part 1 Article 160
Year 2016
Title: Influence of some management practices on the fruiting of Amanita caesarea in a chestnut grove
Author: Camacho M., Daza A., Romero de la Osa L., Manjón J.L., Santamaría C.

In the Natural Park of Sierra de Aracena y Picos de Aroche (SW Spain) chestnut groves occupy 5000 ha and constitute an emblematic landscape identified as the landmark of the Park. However in recent years it has been detected a progressive abandonment of this groves probably due to its low profitability. The park has a large variety of mushrooms, many of which are ectomycorrhizal fungi (ECM), that is, they are associated with the tree roots and play an important role in plant nutrition. In fact, are considered good indicators of forest health. Several ECM are among the most precious and prized edible fungi, and their harvesting could represent an important source of income. Amanita caesarea is an EMC often associated to chestnut trees whose edible sporocarps are well prized. However the production of fruiting bodies depends on many factors, so that, depending on the year it may be little or even null which hinders their exploitation.

To date the artificial reproduction of these fungi to the fruiting stage continues to elude the efforts of researchers. So we have studied the evolution of A. caesarea mycelium in soil throughout the year and it has highlighted the importance of temperature on fruiting. The aim of this study was also to determine on the one hand, if irrigation and/or the superficial plowing in productive areas, and secondly, if the mycelium of A. caesarea applied in adults chestnut trees could increase the occurrence of this appreciated fungus. If so would add value to the chestnut groves.

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