CORN OR MAIZE 91 



from other corn fields, to prevent . mixing. The plot 

 necessarily must be small. Rows twenty-five hills in 

 length and as many rows as the remnants will plant is 

 the usual size. The remnant of the highest yielding ear 

 is used as the sire, the three or four other remnants as 

 the dam or female of the cross. The sire ear should be 

 used to plant every third row. In order to make it reach 

 as far as possible, these rows should be planted thinly, 

 usually two kernels per hill. The remnants of the other 

 ears are used to plant the rows between the sire rows. 



Fig. 28. — A multiplying plot, out of the reach ot pollen from other com. 



When the tassels begin to appear, the plot should be 

 visited each day and tassels removed from the middle 

 rows. This will insure the pollen from the highest yield- 

 ing ear fertilizing the plants produced from the remnant 

 of the three next highest yielding ears. If the rows 

 planted by each ear are recorded, the pedigree of the corn 

 can be determined for each ear. At harvest time the 

 rows from each are harvested separately. 



70. The multiplying plot. — The multiplying plot 

 is planted next year from the ears grown in the detasseled 

 rows. This plot, too, should be a distance from other 

 corn fields. The multiplying plot, as the name indicates, 



