Amount of chlorophyll in leaves, temperature and drought resistance of the varieties of tea grown in the village of Khanbulan (Lankaran, Azerbaijan)

Data on the content of chlorophyll in tea leaves are given. The place of research is the area of the Khanbulan village of the Lankaran Regional Scientific Center. The synthesis of chlorophyll in the leaves of the tea plant is activated in spring, and at the end of summer the intensity decreases. The environmental factors of the atmosphere, especially the rise in temperature, cause some harm to tea leaves. The tea plant tolerates 40°C heat and develops under optimal conditions. At temperatures above this level, burns of varying degrees occur on the tea leaf, brown spots are observed. Varieties were used on the experimental site: Azerbaijan-2; FAQ-22; FAQ-19; Farman pink and Farman tea. The process of photosynthesis, heat resistance, water-holding capacity of tea leaves, as well as the explanation of the resistance of the tea plant to environmental factors were also studied.