PROTEIN IN PIvANTS AND ANIMALS 



23 



Protein in Plants 



Protein 

 Per cent. 



Water 

 Per cent 



Protein 

 Per cent. 



Water 

 Per cent. 



Grain 



. Barley 



Corn 



Oats 



Wheat 



Seeds 



Cotton 



Cowpea 



Flax 



Soja bean 



Leguminous Hay 



Alfalfa 



Cowpea 



Crim.<3on clover . . 



Red clover 



12.4 



9-3 

 II. 8 

 11.9 



18.4 

 20.8 

 22.6 

 34-0 



14-3 

 14.4 



15-2 



12.3 



10.9 

 10.6 



II. o 



10.5 



10.3 



14.8 



9.2 



10.8 



8.4 

 II. 9 



.9.6 



15-3 



Straw 



Oat 



Rice 



Rye 



Wheat 



Roots & Tubers 



Beet (mangel) . 



Carrot 



Irish potato. ■ ■ ■ 



Turnip 



Grass Hay 



Kentucky blue. 



Meadow fescue 



Orchard 



Timothy 



4.0 

 5-9 

 3-0 

 3-4 



I.I 

 i.o 

 i.o 



1. 1 



7.8 

 7.0 

 8.1 

 5-9 



9.2 

 12.0 



7-1 

 9.6 



90.9 

 88.6 

 78.9 

 90-5 



21.2 

 20.0 



9-9 

 13.2 



From the above results we can see that the protein, in seeds 

 is greater than in straws. In the woody or older parts of the 

 plant very little protein is found. The legumes are richer in 

 protein than the grasses. Grass hay and straw contain much 

 more protein than roots. The protein in grains is found largely 

 in the germ and that portion closely surrounding it. 



Distribution of Protein in the Corn Plant 



Corn grain 



Corn bran 



Corn germ 



Corn cob 



Corn (whole plant) 



Corn leaves 



Corn shucks 



This distribution of protein in corn is interesting. The bran 

 is the outer covering of the corn grain and is for protecting the 

 seed, and is therefore low in protein. The outer coverings of 

 other seeds as oats, rice, cotton, etc. also contain less protein than 

 the other parts of the seed. The germ, or embryo plant, is com- 

 paratively rich in protein for it is this part of the seed that must 



