166 PRODUCTIVE FARMING 



Carman No. 3 and Rural New Yorker are late varieties 

 that resist disease fairly well. Other late varieties that are 

 popular because of good quality and heavy yielding are 

 Burbank and Sir Walter Raleigh. 



FIG. 86a. The eye end of the potato is best for seed. The stem end may be saved 

 for food if desired. Never cut across the eye end as shown at the left. 



Seed Selection. For the best crop it is well to select seed 

 potatoes of the form and character desired in the crop. The 

 following score card will serve as a guide in selecting potatoes 

 either for seed or for exhibition: 



Size 20 



Too large, cut 2 



Too small, cut 12 



Not even, cut 6 

 Appearance 60 



Not bright, cut 10 



Dirty, cut 10 



Scabby or wormy, cut 40 



Shape 10 



Quality 10 



Unsound, cut 5 



Brittle or spongy, cut 5 



Total .' 100 



It is not wise to plant small potatoes because they are 

 cheap. It is well, if possible, to select seed from heavy- 

 yielding plants, as this is certain to help increase the yield. 



Seed potatoes from northern States are shipped to growers 

 in the middle and southern latitudes for the sake of increasing 

 the yield and hastening the growth of the crop. This prac- 

 tice of "importing" seed from farther north is not always 

 necessary for the middle latitudes, but should be continued 

 in the South where the tubers do not ripen well. 



