454 



STATE BOARD OF AGRICULTURE. 



The dry matter was determined in the leaves, stalks and ears of the two 

 hundred sample plants on these different dates. In the next table there 

 is given the pounds of dry matter in each of these parts of the plant on 

 the given dates. 



While there is an apparent loss in total dry matter between September 

 6th and September 15th, there is at the same time a gain of dry matter in 

 the ears and a corresponding loss in the leaves and stalks. This loss in 

 the leaves is due to a transfer of part of their substance through the stalls 

 to the ear and to an actual loss of dry matter by oxidation as the leaves 

 mature. Later in the bulletin complete analyses of samples of corn taken 

 for silage on these dates will be given. September 15th, when the corn 

 was fully ripe less than half the dry matter was in the ears, the other half 

 being about equally divided between the stalks and leaves. 



The Pennsylvania Station performed some experiments along this line 

 in 1887 and 1888, the results of which are published in the Report of that 

 Station for 1888 and in Bulletin 11 of the same Station published in 1890. 

 A table and comments taken from page 13 of the bulletin follows: 



"That the relative distribution of the dry matter may be more easily 

 seen the following table has been calculated from the above. It shows that 

 out of every hundred pounds of dry matter in the plant there is, in the 

 different parts, the number of pounds given in the table. It also shows the 

 proportion of total amount in ears and stover, the ears being taken as the 

 unit." 



Proportion of parts, 100 pounds of dry matter is distributed. 



Name of variety. 



Flint*: 



Ansel of Midnight 



],. .n<?ff»M' w 



Pipe Stem 



Self Husking - 



Dents: 



Clmmnion. White Pearl 



Cleaver 



ftolden Beauty 



Golden D 'lit .- 



Hickory Kiug 



I pamine 



Plasa Qn»en — 



Qneen of 'he N'orth 



Qupen of th" Prairie ... 



Wisconsin Ewrliest White Dent 



Propor- 

 tion of 

 ears to 

 itover. 



1: .64 

 1: 56 

 1:1M 

 1: .48 



1: .91 

 1: 83 

 1:1 43 

 1:162 

 1:183 

 1:1 72 

 1:1.77 

 1:1.49 

 1:1.73 

 1:1.48 



