- Traditional Medicine > Traditional, Complementary and Herbal Medicine
- Quality and Safety: Medicines > Quality Assurance
(2003; 80 pages) [French] [Spanish]
Climatic conditions, for example, length of day, rainfall (water supply) and field temperature, significantly influence the physical, chemical and biological qualities of medicinal plants. The duration of sunlight, average rainfall, average temperature, including daytime and night-time temperature differences, also influence the physiological and biochemical activities of plants, and prior knowledge should be considered.