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The name “Onion” originated from the Latin name unio, meaning oneness or unity, or a kind of single onion. A native of Central Asia, onion is now grown in more than 140 countries under temperate tropical conditions. In India onions have been adapted from very early times, before Christian era. Maharashtra, Karnataka, Gujarat, Bihar, Madhya Pradesh and Rajasthan are the main onion-growing states in the country. Barring north-eastern states and kerala, basically all states grow onion. A crop of high culinary importance in daily diet creates ripples in political circles when consumers face shortage of onion and market price goes high.

The Onion’ covers all aspects of the crop from its origin to marketing. In this eighteen chapters written by experts in the respective fields of Onion, this monograph reviews status and prospects of Onion research and development. It covers genetic resources, genetics, biotechnology, breeding, crop production, crop protection , seed production, physiology, biochemistry, processing and storage as well as price volatility aspects of Onion. Each chapter presents complete information from historical aspects to latest times, supported by data, illustrations and references. Readers will find all information on onion in one spine in this book. This publication hopefully would be a source of rich information for students and researchers, and would be of great value for frames and entrepreneurs alike.