As discovered by the Università Politecnica delle Marche and by Assam (Agenzia Servizi Settore Agroalimentare delle Marche), a heavy early pruning can induce a strong reduction of the fruit number, stimulating in this way the emission of epicormic shoots. This event would then require strong intervention in the next year or even a green pruning (during the summer).
Another interesting result of this research says that a small pruning can be done in June without any negative effect on the maturation and the total fruit quantity. The necessity to perform the pruning before the vegetative stage of the tree then can be considered as an outdated traditional knowledge, whenever the pruning is performed properly. In particular, it is important to avoid that in late May or June the positioning of flowers on the tree influence the pruning strategy. I.e., it is important to operate the pruning rationally, without been influenced by the desire to maximize the quantity of fruits.