Abstract
SHS investigation development is considered from the geographical and historical viewpoint. 3 stages are described. Within Stage 1 the work was carried out in the Department of the Institute of Chemical Physics in Chernogolovka where the scientific discovery had been made. At Stage 2 the interest to SHS arose in different cities and towns of the former USSR. Within Stage 3 SHS entered the international scene. Now SHS processes and products are being studied in more than 50 countries.
Abstract
Broadly defined, disease is any physiological abnormality or significant disruption in the normal health of a plant that changes its appearance or function. Due to viruses, bacteria or fungi and favored by certain environmental conditions (nutrient deficiency, soil degradation, water problems, climate change, etc.) and certain pests (sometimes playing a role of vector), plant diseases are sources of considerable economic losses for agriculture and forestry, and as such studied by plant pathology or phytopathology.
Keywords:
Controlling methods, Diagnosis, Economic impact, Non parasitic plant disease, Parasitic plant disease, Symptoms.
Recommended Chapters
We recommend
Authors:Bentham Science Books