THE LOOSE SMUT 



191 



relative growth of the three plants is practically the 

 same as it wr.s after the seeds were three days in the 

 germinator. 



In Kansas Professor Kellerman made a special series 

 of experiments, which showed that there was an increase 



FIG. 80. OATS PLANTS TWO WEEKS OLD. ONP>HALF NATURAL SIZE. 



of from four to eight bushels per acre over that ac- 

 counted for by the mere prevention of the smut, when 

 the seed was treated with hot water. 



Professor Arthur has shown that the oats may be 

 treated with hot water long before the time of planting, 

 with as good results, both as to prevention of smut and 

 increase in yield, as when treated just before planting. 



