In plants tissue culture, plants or explants such as pieces of leave, stem or root is cultured in a specific plant medium, which contains essential plant nutritional and hormones. Other plant growth factors which contains light and temperature are managed and controlled by using artificial conditions. All the procedures are performed under sterile (aseptic) conditions. The explants then develop stem, roots and leaves. The generated plantlets are hardened before planting in out conditions. To start with plant tissue culture, one should clean his/her arms, forceps and other devices with alcohol or other sterilizer to avoid bacterial contamination. Following this, the explants are surface sterilized by using chemical solutions such as bleach or alcohol. Though mercury chloride is an effective sterilizer, it is hardly ever used due to its potential prospective toxicity. After sterilization, the explants are presented into a plant medium, which can be either solid or fluid. The cells divide and differentiate into plant parts, thus giving rise to a complete plant. Horticulture is the science, technology and business involved in intensive plant cultivation for individual use. It is used from the individual level in a lawn up to the actions of a multinational organization. It is very diverse in its activities, including plants for food (fruits, vegetables, mushrooms, culinary herbs) and non-food crops (flowers, trees and shrubs, turf-grass, hops, grapes, medicinal herbs). It also includes related services in plant conservation, landscape restoration, landscape and garden design/construction/maintenance, horticultural therapy, and much more. This range of food, therapeutic, ecological, and social products and services are all fundamental to creating and maintaining individual health and well-being. Botany Humus is a product applied for boosting the soil. It has the ability to break up clay soils and enhance sandy soil structure. Cotton is popularly used as a fiber for clothing, and derived from the Gossypium plants, and the invention of modern cotton gin in the 18th century made it more affordable. Roughly one-fourth of pharmaceutical drugs are derived from botanicals and herbs may be used together to produce more effective formula that is safe with the least hazards. Agronomy is the specialized field of study that deals with crop and soil sciences, in order to boost the harvest. As early as the 19th century, scientists began to retrieve plant extracts and ingredients for making medicines. Chemists also formulated their compounds in parallel to herbal medicines for complex medicines made from plant compounds which boost the immune system. Herbal coils are used to fight the mosquitoes.