TABLES. 



237 



TABLE v.— STANDARDS OF PURITY AND GERMINATION 

 OF AGRICULTURAL SEEDS. 

 The United States Department of Agriculture has adopted 

 the following standards as the base for its decisions as to the 

 value of seeds: 



The seeds must be true to name, and practically free from 

 smut, bunt, ergot, insects or their eggs or larvae, and the seeds 

 of dodder (Cuscuta spp.), wild mustard (Brassica spp.), wild flax 

 (Camelina spp.), Russian thistle (Salsola kali tragus), Canada 

 thistle (Carduus arvensis), cockle (Agrostemma githago), chess 

 (Bromus secalinus) , quack grass (Agropyron repens), penny cress 

 (Thlaspi arvense), wild oats (Avena fatua), and the bulblets of 

 wild onion (Allium vineale). It must not contain more than one 

 per cent of other weed seeds, and should come up to the percent- 

 ages of purity 1 and germination given in the following table: 



KIND OF SEED. Purity 



Alfalfa 



Asparag-us 



Barley 



Beans 



Beet 



Blue grass, Canadian. 

 Blue g"rass, Kentuckv 



Brome, awnless '. 



Buckwheat 



Cabbage 



Carrot 



Cauliflower 



Celery 



Clover, alsike 



Clover, Crimson 



Clover, red 



Clover, white 



Collard 



Corn, field 



Corn, sweet 



Cotton 



Cowpea 



Cucumber 



Egg Plant 



Fescue, meadow... . 



Lettuce 



Kafir corn 



Melon, musk 



Purity. 



Germi- 

 nation. 



per 

 cent."^ 



per cent. 



98 



85-90 



99 



80-85 



99 



90-95 



99 



90-95 



99 



140-150! 



90 



45-50 



90 



45-50 



90 



75-80 



99 



90-95 



99 



90-95 



95 



80-85 



99 



80-85 



98 



60-65 



95 



75-80 



98 



85-90 



98 



85-90 



95 



75-80 



99 



90-95 



99 



90-95 



99 



85-90 



99 



85-90 



99 



85-90 



99 



85-90 



99 



75-80 



95 



85-90 



99 



85-90 



98 



85-90 



99 



85-90 



KIND OF SEED 



Melon, water 



Mi] let, common (C//a^- 



tQchloat itahca) 



Millet, hog" {PanicH7n 



mih'aceum) 



Millet, pearl 



Oats 



Okra 



Onion 



Parsley 



Parsnip 



Peas 



Pumpkin 



Radish 



Rape 



Rye 



Salsify 



Sorg-hum 



Spinach 



Squash 



Timothy 



Tomato 



Turnip 



Tobacco 



Vetch, hairy .. 



Vetch, kidney 



Wheat 



Purity. 



Germi- 

 nation. 



per 



per 



cetit. 



cent. 



99 



85-90 



98 



85-90 



99 



85-90 



99 



85-90 



99 



90-95 



99 



80-85 



99 



80-85 



99 



70-75 



95 



70-75 



99 



90-95 



99 



85-90 



99 



90-95 



99 



90-95 



99 



90-95 



98 



75-80 



98 



85-90 



99 



80-85 



99 



85-90 



98 



85-90 



98 



85-90 



99 



90-95 



98 



75-80 



98 



70-75 



95 



85-90 



99 



90-95 



''Impurity allowed refers to inert matter and one per cent (only) of weed seeds 



other than those practically prohibited, as above noted. 

 fEach beet fruit, or "ball," is likely to contain from 2 to 7 seeds. One hundred 



balls shou ld yield 150 sprouts. 



1 This means purity of grain, not purity of stock. 



