I) Agriculture :
1) Enhancement of crop yield through Green Revolution solves the problems. like decreasing resources and increasing population.
2) New plant breeding techniques are useful to develop hybrid varieties in crop plants like Rice, Wheat, Maize, Sugarcane etc.
3) Phytopathology is helpful in prevention and eradication of several plant diseases.
II) Medicine :
1) Studies in Medicinal plants like Arnica, Cinchona, Neem, Datura, Rauwolfia, Ocimum are important to explore them for human health care.
2) Production of antibiotics, bioinsecticides, single cell proteins is made possible by study of these plants.
III) Environmental Issues :
1) Control of Green house effect by tree plantation and soil pollution by bio-remediation, recycling of nutrients by saprophytic organisms, usage of biofertilizers to avoid soil and water pollution caused by chemical fertilizers and prevention of soil erosion by sand binding plants.
2) Usage of algae (Chlorella) as food for astronauts in space research programmes and extraction of Iodine, agar-agar etc. from several sea weeds also indicate the scope of Botany for the Contemporary World.
IV) Commercial Products :
Knowledge of plants which yield commercially important and useful products like timber fibres, beverages such as coffee and tea, condiments, rubber, gums, resins, dyes, essential and aromatic oils is of great importance for their exploitation.
