HORTICULTURE

Detailed explanation-1: -Plant physiologists also study the process of plant growth and development: how plant cells perceive their place and role within the plant, how factors such as light and gravity affect what plant cells will do, and how plant hormones signal to cells about environmental conditions.

Detailed explanation-2: -Plant physiology is the study of plant function and behaviour, encompassing all the dynamic processes of growth, metabolism, reproduction, defence, and communication that account for plants being alive (Salisbury & Ross, 1992; Baluška et al., 2006; Scott, 2008).

Detailed explanation-3: -Plant Physiology is the study of how plants work, starting with internal processes that happen rapidly like photosynthesis and molecular interactions, the processes determining shape and structure of plants (including microgravity of space), and the large scale role of plants in the ecology of Earth.