23G EXPERDIENT STATION. [Jan. 



11)10. Facorable Corn Year. — Varieties: Longfelldw, Kustlor, Brew- 

 er's, Eureka. The first two varieties were mature wlieu cut. 

 Ihc'wer's was in niilk and the ears just forming on the 

 Eureka. 



It will be observed that iu many cases the propcn-tiun of the 

 several parts differ in the green stage and on the dry-matter 

 basis. Thus Twitchell's shows 27 per cent, of stalk when cut 

 and only 15 per cent, when all of the water is eliminated. San- 

 ford White shows 24 per cent, of ears when cut and 35 per cent, 

 in dry matter. 



The remarks which follow refer to the proportions of the parts 

 on the basis of dry material. In general it may be said that 

 there is a wide difference between the proportion of stalks and 

 ears ; the diffference between the leaves and husks is less marked. 



A decided difference is noted between the same variety grown 

 in dijferent years. This variation is evidently due, to some 

 extent, to the stage of maturity of the plant when cut and also 

 to unfavorable conditions, which checked the development of 

 the ear. The stalks and ears form practically 70 per cent, of 

 the dry matter of the plant. The leaves and hiisJcs 30 per cent. 

 From the data at hand the inference can be drawn that this is 

 an inherent characteristic of the maize plant. While other in- 

 vestigators ^ have determined the relative proportions of the 

 plant, it is believed that this fact has not before been noticed. 



Those coarse varieties maturing late naturally have less ear 

 and a correspondingly larger proportion of stalk. Xote the 

 mature varieties, including the Longfellow with an average of 

 28 per cent, of stalk and 44 per cent, of ears ; the Pride of the 

 North with an average of 38 per cent, of stalk and 35 per cent, 

 of ears; the Rustler with 32 per cent, of stalk and 35 per cent, 

 of ears, against the later maturing varieties, such as the BrcAver's 

 with 49 per cent, of stalk and 19 per cent, of ears ; the Learning 

 with 44 per cent, of stalk and 20 per cent, of ears; and finally 

 tlic Eureka with 61 per cent, of stalk and 6 ]ier cent, of ears. 

 On the whole, the proportion of leaves and husks does not vary 

 widely in any of the varieties, averaging 20 per cent, for the 

 leaves and \)or cent, for the husks. The Eureka shows rather 



' Schweitzer, Bui. No. 9, Mo. Exp. Sta., Caldwell, Bui. Nos. 7-11; Kept, of 1890, pp. 30-43, 

 Pa. Exp. Sta.; Bui. No. 21, Iowa Exp. Sta. 



