DENDROLOGY

Detailed explanation-1: -A stem cutting produces new roots, and a root cutting produces new stems. Some plants can be grown from leaf pieces, called leaf cuttings, which produce both stems and roots. The scions used in grafting are also called cuttings.

Detailed explanation-2: -A stem cutting includes a piece of stem plus any attached leaves or buds. Thus, the stem cutting only needs to form new roots to be a complete, independent plant. A leaf cutting uses just the leaf, so both new roots and new stems must be formed to create a new plant.

Detailed explanation-3: -The correct option is A vegetative propagation. Vegetative propagation is a form of asexual reproduction. Stems, leaves and roots are called as the vegetative parts of a plant.

Detailed explanation-4: -Cutting method is a technique of vegetative reproduction in plants. In this method, a branch of the stem is cut out from the plant and buried in the soil. New leaves arise from the nodes in the stem and the new roots also develop giving rise to a whole new plant. Example-rose, sugarcane.