paulownia witches‘broom(PWB)-phytoplasma 第1页

Propagation and Long-Term Preservation of Several Isolates of Jujube Witches‘ Broom and Paulownia Witches‘ Broom-Phytoplasmas in in vitro Cultured Plantlets and Grafting Transmission of the Pathogens from the Diseased to Healthy Plantlets