Bull. Spec. CORESTA Symposium, Kallithea, 1990, p. 162, P05, ISSN.0525-6240
Pathogenicity differentiation of Alternaria alternata and induced resistance of tobacco to brown spot by weak virulence strains
Shandong Agricultural University, Tobacco Research Laboratory, Taian, Shandong, China.
The present paper has dealed with the pathogenicity differenciation of Alternaria alternata, with an attempt to select weak virulence strains used for resistance inducers. Twenty strains collected from 10 places in China were tested. The evident...