Scientists believe that the green bean originated in India and countries in Central Asia. Because the historical evidence was found that the green bean in planting region of Madhya Pradesh. More than 4000 years ago in the country, India, and Thailand, Sri Lanka, Myanmar, widely grown in Pakistan, Iran, China, and in the East of the former Soviet Union, but the education of researchers in the country, Thailand. Archaeological evidence indicates that green bean originated in Thailand by countries found in the cave of ghosts. Mae Hong Son is located in the Middle Stone age, approximately 10000 years.Planting green beans have noen. To keep the popular green bean seed is collected, both pods by hand, then dried, and then remove the seed pods off color marker or use the sieve method of shaking through. By seed in addition to food, the most popular is to cultivate a bean sprout.
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