QUESTIONS 287 



2. What mainly is the composition of the cortex? Of the epidermis? 



3. What relation between internal medullary area and eyes? 



4. (a) What constitutes texture in a tuber? (6) What indicates fine 

 texture in a tuber? (c) What indicates coarse texture in a tuber? 



QUESTIONS 



1. Describe the experiments conducted at Vermont and Ontario, Canada, 



on the source of seed. 



2. What merits are claimed for " second crop " seed? For immature seed? 



3. Why is low storage temperature required? 



4. Will potatoes sprout better after storage? 



5. What advantages claimed for sprouting seed? 



6. How much seed required to plant an acre ? 



7. Does yield vary with rate of planting? 



8. Under what conditions is whole seed used rather than cut seed? 



9. How is time of planting regulated? 



10. Compare the merits of deep and shallow planting. Of hill and drill 



planting. Of level and ridge cultivation. 



11. Give the ordinary practice in cultivating a potato crop. 



12. What tools are used in harvesting? 



13. What changes take place in storage? 



14. Give temperature for storing seed stock. Table stock. 



15. What are most destructive diseases? 



16. What is the nature of a " disease "1 



17. Name several diseases. 



18. Give treatment for scab and rhizoctonia. 



19. How is late blight controlled? 



20. Tell how to make and test Bordeaux mixture. 



21. When is the spray applied? 



22. Does Bordeaux have any other effect beside killing the diseases? 



23. Give treatment for potato bugs. 



24. How are new varieties originated from seed balls? 



25. What are sports? 



26. Describe method of potato breeding by hill selection. 



