EXERCISES 65 



oats are not in good keeping condition, or that they have 

 been overheated in the bin or stack. Such conditions have 

 a tendency to destroy both the seed and the feed value of 

 the grain. 



Elevator men often resort to a process of bleaching to 

 whiten oats that have been blackened or otherwise injured 

 by exposure to the weather. Sulphur is used as the bleach- 

 ing agent and oats thus treated often retain the smell of 

 sulphur. Oats or barley treated in this way should be 

 avoided as they are apt to be injurious as feed, and often 

 the vitality or germinating power is destroyed or seriously 

 impaired. 



Score Cards. Score cards for use in the judging of 

 small grains are to be found in the several chapters dealing 

 with these products. 



EXERCISES 



1. After shelling an ear of corn that weighed 12 ounces it 

 was found that the corn weighed 10 ounces and the cob 2. 

 What was the per cent of corn to cob ? 



2. If it cost ij cents an ear to test seed corn, how much 

 would it cost to test the seed corn for 640 acres of land, if it re- 

 quired 15 ears of seed corn per acre and if only 75 per cent of 

 the tested ears were sufficiently good for seed? 



3. If the testing of the seed was the means of increasing the 

 yield 5 bushels per acre, and corn was worth 60 cents per 

 bushel on the market, how much money would a farmer get 

 for the extra yield on the 640 acres ? 



4. Compare four yellow varieties of corn and two white 

 varieties for breed characteristics. 



5. Determine percentage of corn to cob by weighing the 

 cobs and shelled corn. 



6. Soak kernels of corn for a half hour in hot water, then 



M. AND H. PLANT PROD. 5 



