RYE AND BARLEY 77 



80. Enemies. Since barley is the first of the small 

 grains to ripen, it is devoured by birds. It is subject to 

 two kinds of smut. For the prevention of the loose smut 

 of barley, evidenced by conspicuous black heads, without 

 grain, the Wisconsin Experiment Station recommends the 

 following treatment of the seed : " Soak for 12 hours in 

 cold water; then scald the seed at 130 F., for not over 

 6 minutes. Sow the seed the same day." 



LABORATORY EXERCISES 



(1) Make a drawing of a spikelet of rye. 



(2) Make a drawing of a spikelet of barley. 



(3) Practice the separation of a mixture of grains of barley, 

 rye, wheat, and oats. 



(4) Write out the two most conspicuous differences between 

 a head of rye and one of barley ; the one most conspicuous dif- 

 ference between a head of bearded wheat and of bearded barley. 



LITERATURE 

 Rye. 



KILGORE, B. W., and others. N. C. Dept. Agr., Bui. Vol. 30, No. 8. 

 VAN WAGEMAN, J., JR. Bailey's Cyclo. Agr., Vol. II, pp. 559-563. 

 SARGENT, F. L. Corn Plants. Boston. 



Barley. 



SARGENT, F. L. Corn Plants. Boston. 

 MOORE, R. A. Bailey's Cyclo. Agr., Vol. II, pp. 202-206. 



