SEED 223 



got by regarding both the purity (including 

 cleanness) and germinative capacity, and 

 is usually stated in the form of a percentage. 

 Suppose, for example, that a sample of cocks- 

 foot seed germinates 90 per cent, and has a 

 purity of 90 per cent., the Real Value that is 

 to say, the number of seeds in 100 that are both 

 true to name and capable of germinating 

 is obtained by multiplying 90 by 90, and divid- 

 ing by 100, which gives 81. Or, to take 

 another case, if the purity is 90 and the 

 germinative capacity 70 per cent., the Real 

 Value works out at 63. Suppose that in the 

 case of the sample having a Real Value of 81 

 the price is Is. per lb., the value of the other 

 will be got by multiplying 12d. by 63 

 and dividing by 81, which gives a figure of 

 practically 9|d. This is really more than 

 the inferior sample is worth, for the reason 

 already given, namely, that where the 

 germinative capacity is low, many seeds 

 which would count in a test of germination 

 are of no practical value. 



Most farmers must annually purchase 

 seeds of one kind or another. Speaking 

 generally, farmers do not raise their own 

 grass seed, turnip and swede seed, mangold 

 seed, clover seed, and the like; therefore, 

 for such seeds a farmer has usually no 



