204 CROP PRODUCTION 



much it is well to hem the edges as otherwise the ravel- 

 ings sometimes disarrange the kernels in unrolling. 

 Each cloth should then be marked with a heavy pencil, 

 first, lengthwise in the middle and then crosswise, as 

 shown in the accompanying illustration, making squares 

 about 3 inches wide. Nimiber the squares as shown in 

 the illustration also. 



^'Moisten one of these cloths and lay it out on a board 

 of convenient size in front of the ears which are to be 

 tested. Remove six kernels from ear No. i and place 

 in the square No. i in the upper left-hand corner of the 

 cloth. Take six kernels from ear No. 2 and place in 

 square No. 2 in the upper right-hand corner, ear No. 3 

 in the next square on the left-hand side, and ear No. 4 

 in a corresponding position on the right side. When 

 the cloth has been filled begin at the upper end with 

 ears Nos. i and 2, etc., and roll the cloth up. Since the 

 cloth is moistened the kernels will not push out of place. 

 If a small irregular shaped piece of wood or some other 

 substance is used as a core in rolling, a more uniform 

 germination may be secured. When the rolling of the 

 cloth has been finished, tie a string rather loosely about 

 the middle of the roll; or better still, use a rubber band, 

 and number this roll No. i. Then proceed with roll No. 2 

 in the same way. As many rolls may be used as are 

 necessary to contain the corn which one has to test. 

 From 20 to 50 ears can be tested in each roll, depending 

 upon the length. 



"After the rolls have been filled they should be placed 

 in a bucket of water where they may remain for from 

 2 to 18 hours, depending upon the preference of the 

 operator. At the end of this time pour off the water 



