Cultivars resistant or tolerant to pests, fungal diseases, bacteria, phytoplasms, physiological disorders and adverse climatic conditions (i.e. frost) are preferred.
The use of well adapted cultivars to local conditions is preferred.
Cultivars resistant or tolerant to pests, fungal diseases, bacteria, phytoplasms, physiological disorders and adverse climatic conditions (i.e. frost) are preferred.
The use of well adapted cultivars to local conditions is preferred.