EXERCISE 26 (Continued) 



Step 4. Examine tubers in each hill for blemishes and diseases, especially 



scab and rhizoctonia. Score the best hill 15 points and the others in proportion. 



Step 5. Add scores. Show the instructor how you have placed the hills. 



Reference. Gilbert, A. W., 1917, The Potato (Macmillan) 47-76. 



76 



