Effect of grapevine cultivar, strain of Xylophilus ampelinus and culture medium on in vitro development of bacterial necrosis

Research Note Factorial experiments were designed to study the response of in vitro cultivated grapevine after inoculation with Xylophilus ampelinus , the causal agent of bacterial necrosis. Significant effects of culture medium, cultivar and strain were demonstrated. The possible. uses for the in vitro test are discussed.