HORTICULTURE

Detailed explanation-1: -Root apical meristem and shoot apical meristem are responsible for primary growth of the plants.

Detailed explanation-2: -Meristems contribute to both primary (taller/longer) and secondary (wider) growth. Primary growth is controlled by root apical meristems or shoot apical meristems, while secondary growth is controlled by the two lateral meristems, called the vascular cambium and the cork cambium.

Detailed explanation-3: -Primary growth in plants is initiated by the apical meristem and helps the plant to grow upwards.

Detailed explanation-4: -Apical meristems give rise to the primary plant body and are responsible for the extension of the roots and shoots. Unlike most animals, plants continue to grow throughout their entire life span because of the unlimited division of these and other meristems.

Detailed explanation-5: -The root apical meristem produces the three primary meristems: procambium, ground meristem, and protoderm. The procambium gives rise to vascular tissues, including the primary xylem and primary phloem. The ground meristem produces the cortex, a ground tissue. The protoderm produces the epidermis, a dermal tissue.