BOTANY

Detailed explanation-1: -Some roots, called adventitious roots, arise from an organ other than the root-usually a stem, sometimes a leaf. They are especially numerous on underground stems, such as rhizomes, corms, and tubers, and make it possible to vegetatively propagate many plants from stem or leaf cuttings.

Detailed explanation-2: -Post-embryonic roots can develop from stems, leaves or other vegetative non-root organs, either constitutively or in response to stress. Such roots are referred to as adventitious, a term that etymologically indicates their unusual and surprising origin (Figure 1) [1].

Detailed explanation-3: -Adventitious roots are plant roots that form from any nonroot tissue and are produced both during normal development (crown roots on cereals and nodal roots on strawberry [Fragaria spp.]) and in response to stress conditions, such as flooding, nutrient deprivation, and wounding.

Detailed explanation-4: -The roots that arise from plant parts other than radicle are called adventitious roots. They can be from different parts of the plant and are accordingly called nodal roots, stem roots, crown roots, junction roots, etc.