truffle orchard with oaks and hazelnut trees, host tree seedlings are inoculated with truffle spores

aestivum agriculture are aroma background beautiful begins black business color complicated countryside cultivated cultivation delicatessen diamond dordogne environment expensive famous farming festive field five food france harvest hazelnut healthy host inoculated later luxury made melanosporum mushroom mycelium nature oaks orchard organic outdoor perigord plantation production relationship roots scent season seasonal seedlings seven species spores sunny sustainable symbiotic terroir tree trees truffle truffles tuber years