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| | Asian Vegetables |
 | | Water convulvulus belongs to the Convulvulaceae (morning glory family) and the same genus as the sweet potato (Ipomoea batatas L.) Probably of Chinese origin, cultivation dates back to at least 300 AD It is a very important green vegetable in Southeast Asia, because it is easy to grow, high yielding, and very nutritious. |
 | | Ipomoea aquatica as a vegetable crop in Hong Kong. |
 | | aquatica is prized as a vegetable, it is also an agricultural and environmental pest, reducing yields of rice and sugarcane in other parts of the world, and affecting aquatic ecosystems, irrigation systems, reservoirs, and navigation and recreation on fresh waterways. |
| www.hort.purdue.edu /newcrop/proceedings1990/V1-387.html (2519 words) |
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