Presentation is loading. Please wait.

Presentation is loading. Please wait.

SWEET POTATOES More than just a holiday food. © Jack D. Osman, Ph.D. Towson University.

Similar presentations


Presentation on theme: "SWEET POTATOES More than just a holiday food. © Jack D. Osman, Ph.D. Towson University."— Presentation transcript:

1 SWEET POTATOES More than just a holiday food. © Jack D. Osman, Ph.D. Towson University

2 The sweetpotato is both a nutritious and delicious vegetable that deserves to be a regular serving in the American diet. ©Jack D. Osman, 2002

3 Some are down-right ugly! Georgia Jet - 1.5 pounds ©Jack D. Osman, 2002

4 Some are just BIG! 3.5 pounds! ©Jack D. Osman, 2002

5 Others are HUGE! ©Jack D. Osman, 2002

6 Little Know Facts Sweetpotatoes are not yams. Yams are tubers native to Africa, have limited nutrition, are long with dry flesh, and take about 350 days to grow. ©Jack D. Osman, 2002

7 Little Know Facts Sweetpotatoes are part of the morning glory family. (Look at the leaves.) ©Jack D. Osman, 2002

8 Little Know Facts Sweetpotatoes are really storage roots (not tubers). They propagate through “slip” production, are native to South America, and can be harvested in 90 to 120 days. ©Jack D. Osman, 2002

9 Little Know Facts Sweetpotatoes rank as the 5 th most important crop for developing countries. World annual production: 133 million tons. China grows 85% of the world production. USA produces about 1% of the world crop. North Carolina is the leading US producer. ©Jack D. Osman, 2002

10 Little Know Facts Sweetpotatoes are nutritious! An orange-flesh sweetpotato contains a two day supply of Vitamin A, 40%+ of Vitamin C, nearly 10% of iron needs. Sweetpotatoes are one of the only low- fat sources of Vitamin E, and they have more dietary fiber than oatmeal. ©Jack D. Osman, 2002

11 Little Know Facts Sweetpotatoes may fight cancer. The “A.C.E.” vitamins are known as the anti- oxidant set and play a role in cancer prevention. Dietary fiber is another important sweetpotato - anti-cancer link. Additional phytochemicals found in sweetpotatoes (in purple sweetpotato varieties) may also be an anti-cancer advantage. ©Jack D. Osman, 2002

12 Sweetpotatoes are easy to grow. ©Jack D. Osman, 2002

13 Slip Production and Planting ©Jack D. Osman, 2002

14 Back Porch Slip Production ©Jack D. Osman, 2002

15 Planting Slips For northern growers - plant slips under black plastic. ©Jack D. Osman, 2002

16 Ninety days till harvest! ©Jack D. Osman, 2002

17 Curing Sweetpotatoes Immediately following harvest, sweetpotatoes need to be “cured.” Curing protects the root during storage. Sweetpotatoes need to be cured at 85 degrees, 85% humidity for 5 to 7 days. Once cured, store sweetpotato roots at about 60 degrees. Do not store below 55 degrees. This will produce a “chill injury factor,” resulting in a hard core &/or rapid spoilage. ©Jack D. Osman, 2002

18 Even if the sweetpotato were to get damaged in harvest, it has a remarkable capacity to heal itself during the curing process. ©Jack D. Osman, 2002

19


Download ppt "SWEET POTATOES More than just a holiday food. © Jack D. Osman, Ph.D. Towson University."

Similar presentations


Ads by Google