Introduction. Caulimovirus group. Germinivirus group. Plant reoviridade. Plant rhabdoviridade. Tomato spotted wilt virus group. Maize chlorotic dwarf virus group. Tymovirus group. Luteovirus gourp. Sobemovirus group. Tobacco necrosis virus group. Tombusvirus group. Comovirus gro…
The main groups of micro-organisms. Microbial nutrition and physiology. Methods in plant microbiology. Microbial communities and successions. Micro-organisms as saprotrophs and plant pathogens. Classification of micro-organisms as saprotrophs and pathogens. Virulence and resista…
Enfermedades de la planta. Enfermedades causadas por virus. Enfermedades causadas por hongos. Enfermedades causadas por bacterias. Enfermedades causadas por nematodos. Patologia de la semila. Insectos da ninos. Insectos que atacan las plantulas. Insectos comedores del follaja. I…
