HORTICULTURE

Detailed explanation-1: -Temperature: Stomata can open at 30−400C. CO2 concentration: Stomata open at low concentration and close at high concentration. Water availability: Underwater stress condition stomata get close due to ABA hormone. Whereas concentration of oxygen does not have a great impact on stomatal movement.

Detailed explanation-2: -Stomatal movement is not affected by O2 concentration. Stomata are tiny pore complexes found in the epidermis of leaves and other soft aerial parts.. They are meant for the gaseous exchange but are also the main source of transpiration.

Detailed explanation-3: -Low concentration of carbon dioxide can open the stomatal pore. But the atmospheric concentration of oxygen does not have any effect on stomatal movement.

Detailed explanation-4: -According to how turgid the guard cells are, stomata open and close. Numerous environmental factors, including light, temperature, humidity, water accessibility, and CO2 concentration have an impact on stomatal motility.