Citrus fruits rank first in the world with respect to production among fruits. They are grown commercially in more than 50 countries around the world. In addition to oranges, mandarins, limes, lemons, pummelos, and grapefruits, other citrus fruits such as kumquats, Calamondins, citrons, Natsudaidais, Hassakus, and many other hybrids are also commercially important. This book is the most comprehensive reference on citrus fruit biology, biotechnology and quality. Basic and applied scientific information is interwoven to serve the researcher, marketer, scientist, nutritionist, or dietician. With discussions of fruit morphology, anatomy, physiology and biochemistry and chapters on growth phases, maturity standards, grades and physical and mechanical characteristics of citrus trees, this book provides the foundation for understanding growth, harvest and post harvest aspects of these important plants. Insect-pests and diseases, irrigation, nutrition and rootstocks are also addressed. It is a valuable tool for the researchers, Inspection authorities and professional bodies responsible for the application of standards or interested in trade in citrus fruit.

Dr. Kajal Kumar Biswas, presently working as Principal Scientist and Teaching Faculty of Plant Virology, Division of Plant Pathology, Indian Agricultural Research Institute (IARI), New Delhi. He did his M. Sc. (Ag) in Plant Pathology in BCKV, Mohanpur in 1992, and obtained his PhD in Plant Pathology (Plant Virology) at IARI, New Delhi, in 1997. He did his Post Doctorate in University of Florida, Gainesville, USA during 2002-2004 and obtained advanced training in Molecular Plant Virology. He has also served as Scientist in Central Research Institute for Dryland Agriculture (CRIDA), Hyderabad and Senior Scientist and In-Charge, IARI-Regional Station, Kalimpong (West Bengal). He has been awarded the Prof. M. J. Narashimhan Academic Award by Indian Phytopathological Society (IPS), New Delhi (1999); FPSI (Fellow of IPS) (2012), New Delhi; SPPS Meritorious Scientist Award by Society of Plant Protection Science, New Delhi (2010); Shiksha Ratan Puraskar, India International Friendship Society, New Delhi (2011). P. P. Singhal Memorial PI Industries Award. 2016 from ISMPP, Udaipur. He is Editor of (Plant Virology), IPS, New Delhi; and (Plant Virology), ISMPP, Udaipur. He has significant research contributions in the area of biology diagnostics, and genomics, genetic variability of different Plant viruses and transgenic in plant viruses. He is PG teaching faculty for past 16 years and guided several PhD and MSc students at ICAR-IARI, New Delhi. He has published 51 research papers, 10 book chapters and training manuals, 55 research abstracts in several National and International Symposia, and attended 31 National and International symposia. He has written the book entitled Plant Viruses, Diseases and Their Management in 2016.