436 VEGETABLE GARDENING 



626. Varieties. Figure 100 shows some of the most 

 important varieties. The shape is extremely varia- 

 ble. While there are a great many so-called varie- 

 ties in cultivation, not more than 10 or 12 are of great 

 commercial importance. According to Beattie (U. S. D. 

 A. Farmers' Bulletin 324, p. 35), BIG-STEM JERSEY, YEL- 

 LOW JERSEY and RED JERSEY are the best representatives 



FIG. 100. SOME OF THE COMMERCIAL TYPES OF SWEET 

 POTATOES. (l) BLACK SPANISH OR "NIGGER CHOKER"; 

 (2) LONG, JERSEY GROUP; (3) LONG, CYLINDRICAL TYPE; 



(4) RED BERMUDA; (5) SOUTHERN QUEEN. 



of the Jersey group (dry, mealy-fleshed varieties) and 

 SOUTHERN QUEEN, PUMPKIN YAM, GEORGIA, FLORIDA and 

 RED BERMUDA are the most important varieties of the 

 yam group (moist-fleshed varieties). In selecting varie- 

 ties for local sales, market demands should be considered. 

 Red potatoes sell most quickly on some markets, while 

 others prefer white. Soil and climatic conditions must 

 also, be regarded, 



