HORTICULTURE

Detailed explanation-1: -Their stomata only open at night, when humidity tends to be higher and temperatures are cooler, both factors that reduce water loss from leaves. CAM plants are typically dominant in very hot, dry areas, like deserts.

Detailed explanation-2: -Stomata in CAM plants open during the dark period and close during light period. Behavior of stomata in CAM plants is part of an adaptive mechanism evolved by plants that grow in hot and dry environments to conserve water (Lee and Assmann, 1992).

Detailed explanation-3: -In CAM plants, the stomata remain closed during the day and open during the night. This happens so as to reduce loss of water due to transpiration.

Detailed explanation-4: -In CAM plants, the stomata in the leaves remain shut during the day to reduce transpiration through evaporation, but open at night to collect carbon dioxide (CO2). The CO2 is stored as the four-carbon acid malate in vacuoles at night.