Origin and geographical spread
The exact origin is unknown, but where there is a genetic diversity is to the East of the Caspian Sea Mediterranean Sea. There is a bar area to plant daikon in the Mediterranean Sea. About 2000 years before Christ and prevalent to China. When about 500 years before Christ, then prevalent in the country, there are currently approximately 700 in Japan to grow lettuce head, widespread throughout the world. Daikon Radish is a Group Chinese cv. and economic importance in Korea, China, Japan and Southeast Asia.