TY - JOUR AU - Hansen, H. N. TI - Pathogenic fungi: Disease-causing parasitical plants may overcome resistance of host plant developed by genetic means JF - California Agriculture JO - Calif Agr Y1 - 1949/10/01 VL - 3 IS - 10 SP - 4 EP - 12 PB - University of California Agriculture and Nature Resources SN - 0008-0845 UR - http://www.ucanr.edu/sites/calagjournal/archive/?article=ca.v003n10p4 AB - This is the seventh article in a series of brief progress reports on the application oj the science of genetics to commercial agriculture.