406 . REVIEW QUESTIONS 



VIII. Upon what factors does the rate of planting depend? 

 How does the corn plant adapt itself to a given rate of planting ? 

 What factors must be considered in determining whether to drill 

 or hill the corn ? 



IX. What is the purpose of cultivation ? Under what condi- 

 tions may the weeder or harrow be useful in the cultivation of 

 corn? Discuss deep versus shallow cultivation. Upon what 

 does the frequency of cultivation depend ? 



X. What different methods are employed in harvesting the 

 corn crop in the United States? When should corn be cut for 

 the shock ? For the silo ? Do you think " hogging off " of corn 

 is a good method of harvesting ? 



XI. About how much moisture is there in ear corn at harvest 

 time? A year after harvesting? Upon what factors does the 

 amount of moisture depend ? When is there the greatest 

 shrinkage of corn in store ? What sort of storage should be 

 provided for ear corn ? 



XII. In what two ways may the production of corn be in- 

 creased ? Which do you consider the more important ? How 

 would you conduct a variety test ? What is the practical value of 

 it ? Is it a good practice to import seed corn from other states ? 



XIII. What methods of seed selection are now in practice ? 

 Which is the best method ? Why ? What objections are there 

 to the other methods ? 



XIV. What is an ear-to-row test ? Upon what fact is it 

 based ? How would you conduct such a test ? What factors 

 may influence the vak e of the test ? What is the use of the 

 check rows ? Why does one not select seed corn from the ear- 

 to-row test ? 



XV. What is a breeding plot, and how is it conducted ? 

 What is a multiplying plot ? What are the practical advantages 

 of a corn show ? 



XVI. Give the life history and methods of controlling the 

 insect enemies of corn. The fungous diseases. 



CHAPTER V 



I. Discuss the antiquity of wheat. What can you say as to 

 its usefulness to man in early days of civilization ? 



II. What are the distinctive botanical characteristics of wheat ? 



