BUCKWHEAT 



589 



which is supposed to be more resistant to early spring 

 frosts, and produces heavier seed. 



654. Correlation of characters. Love has studied 

 the correlations of two varieties of buckwheat grown on 

 two soils of different fertility. The correlation coeffi- 

 cients which he found are given herewith : 



TABLE XVIII. CORRELATION OF CHARACTERS AS EXHIBITED 

 IN 2 VARIETIES OF BUCKWHEAT, JAPANESE AND SILVER HULL 



The correlation for the same characters of the varie- 

 ties do not differ greatly in the main, although there are 

 some large differences. The change in the amount of 

 food supply exerts some influence on the correlations, the 

 changes produced being generally larger in the Japanese 

 variety. It was also found that as food supply is increased 

 there is a tendency to more variation among the differ- 

 ent characters. The correlations are generally somewhat 

 higher on the poor soil. 



1 Richest soil. * 



