LABORATORY MANUAL IN FIELD CROPS 



I 



* 2? * f* 



SOME COMMON TYPES OF KERNELS 

 (Showing lateral, germ end, and endosperm end cross sections.) 



PRACTICUM NO. 5 

 Object. How to Select Corn Seed. 



Materials. Score card on corn, eight ears of corn for each 

 member of the class. (Score card may be obtained from the 

 state experiment station.) 



Method. Score eight ears by the use of the score card, after 

 making sure that you understand all the terms used. (See 

 Shamel's Corn Judging and Shoesmith's The Study of Corn.) 



Make a germination test of each ear ; after ten days make a 

 reading of the test to determine which are dead and which are 

 active. 



STUDIES 



1. Judging from these tests and scores, which ears would be 

 the best to plant ? 



2. From the poorest ear, what would be the cost of the live 



