Synopsis Floriculture is a fast expanding dynamic industry. Production technology has advanced with the efficient use of plant resources such as water, fertilizers, pesticides; and modification of microclimate that surrounds the plants as per need during various stages of growth, development and flowering. Protected cultivation provides an excellent facility for controlled cultivation of high value crops. Hence, polyhouses are made with all modern facilities film, heating, cooling, humidification, drip irrigation and fertigation systems. The structure and technology are, however, location and crop specific. Moreover, with the adoption of improved production technologies; a number of diseases, pests and weeds affecting ornamental crops are becoming a serious handicap in the their economic production. Indiscriminate application of pesticides has lead to pest resistance and resurgence as well as adverse effect on ornamental crops and also on flora and fauna in the ecosystem. In view of this an attempt has been made in this book to provide a wealth of fascinating information in 13 extensive review chapters like principles, technology and methodology of F1-hybrid seed production; microprogation of ornamental crops; mericloning of orchids; greenhouses and glass houses, design of green houses, cladding material, shade nets and ventilation, economics of polyhouse cultivation, insects, pests, diseases and nematodes of ornamental plants and their management; weed management; and phytosanitary requirements for import and export of floriculture products and planting material. This publication will be of immense value and serve the interests of scientists, teachers, students, policy makers, amateur and commercial flower growers.