Bull. Spec. CORESTA Symposium, Kallithea, 1990, p. 178, P21, ISSN.0525-6240
Integrated control system against tobacco Orobanche ssp
Tobacco Research Institute, Plovdiv, Bulgaria
This study took place between 1985 and 1989 in the field and under production conditions with two background levels of natural infection : strong and very strong. The trials carried out in the experimental field of the Plovdiv Institute followed a...