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VEGETABLE GARDENING 



TABLE V. STANDARDS OF PURITY AND GERMINATION OF 

 AGRICULTURAL SEEDS. 



The United States Department of Agriculture has adopted the 

 following standards as the basis 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.)i 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 percentages of purity 1 and germination given in the following 

 table : 



*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 should yield 150 sprouts. 



iThis means purity of grain, not purity of stock. 



