EXPERIMENT STATION BULLETINS. 



465 



12. Field select seed from increase plat in the fall. From four to 

 ten bushels of selected seed corn should result. This will provide for a 

 substantial planting of 20 acres or more the third season. 



13. Selection may be intensified by picking out 20 or 30 of the best 

 ears from the increase plat and planting in marked area for the third 

 year's increase field. Selections for further ear-row work or increase 

 work can then be made from this marked area. 



The yield, adaptation, and type of corn can be greatly improved by 

 this intensified method of selection. 



Plant breeders are securing promising results by self-pollinating the 

 corn plant to secure pure lines and recombining desirable strains so 

 secured. As yet, no varieties of widespread note have been given to 

 farmers by this method, though in the future valuable strains may be 

 developed. 



EAR ROW RESULTS SHOWING VARIATIONS 

 EXPERIMENT STATION PLAT^ 1919 



As an example of variations in yield and maturity brought out by 

 ear row work, the following table of data on eight of 75 ears included 

 in M. A. C. ear row work of 1919 is ofl'ered : 



*Row No. 9.10 shows highest yield but is too late In maturing. 



*Row No. 9.12 shows consistency for early maturing with yield slight- 

 ly above average of checks. 



*Eow No. 9.28 — lateness of maturity but not high yield. 



*Row No. 9.32 — shows an average ear in market quality. 



*Row No. 9.36 shows high selling percent but not high yielding ability. 



Row No. 9.11 shows low shelling percent and low yielding ability, but 

 not necessarily very early. 



*Row No. 9.GG shows highest yield in plat and uniform excellence in 

 other desirable characters. Note plate. 



*Row No. 9.74 shows low yield lack of early maturity high percent 

 of nubbins compared with No. 66. Note plate. 

 59 



