DENDROLOGY

Detailed explanation-1: -The increase in the stomatal cells occurs when the cells of the epidermis divide and produce stomatal cells. Thus, higher stomatal density increases the rate of transpiration.

Detailed explanation-2: -Answer and Explanation: Stomatal density increases transpiration. Stomata are pores in the leaves that allow for gas exchange between the plant and the environment. Stomata opening also allows for transpiration, in which the plant loses water to the atmosphere through evaporation.

Detailed explanation-3: -Conditions such as high light intensity result in an increased stomatal index, whereas high CO2 concentrations or low humidity can result in a reduction in stomatal index. Little is known about the role of long-distance signalling in stomatal development including how and where the environmental signals are perceived.

Detailed explanation-4: -The rate of transpiration is regulated mainly by stomatal movement but is also affected by stomatal size and density (Jones, 1998; Kramer and Boyer, 1995; Nir et al., 2014).