ABSTRACT
The performance of plant species is largely dependent on its genetic makeup but suitably controlled by different set of environmental conditions. A plant species/variety which performs very well in a given set of environment may have differential response in another environment. Light energy is used by plants in the process known as photosynthesis to manufacture carbohydrates and then these carbohydrate molecules are used by plants to produce other important compounds. Respiration is the process in which the trapped solar energy is later released. Red light alone produces soft growth and long internodes, while blue light alone results in short and hard plants. Plants have an optimal requirement for light intensity which represents the point at which photosynthesis process is maximized to achieve optimum plant growth. Development and flowering in plants relates to both air and root zone temperatures and management of temperature is an important tool for maintaining proper crop growth.
