HORTICULTURE

Detailed explanation-1: -Desert plants are adapted to their arid environment in many ways. Small leaves on desert plants help reduce moisture loss during photosynthesis. Small leaves mean less evaporative surface per leaf. In addition, a small leaf in the sun doesn’t reach as high a temperature as a large leaf.

Detailed explanation-2: -In the hot desert plant growing have leaves reduced to the spine or in some cases it is completely absent, therefore, the leaves are unavailable for photosynthesis. The stems of these plants are modified to perform the functions of leaves, they become green, thick, and fleshy to perform photosynthesis.

Detailed explanation-3: -A primary function of the waxy cuticle is to reduce water loss through the surface of the leaves, which is particularly important in water deficient areas like deserts which receives very little rainfall.

Detailed explanation-4: -The cuticle is the waxy layer secreted by the epidermis on the two surfaces of the leaf. The thickness of the cuticle varies from plant to plant. Desert plants have thicker cuticles to cut down transpiration.