Xo. 5S3] 



w i;> i um um iK>M<>(,i:.\i;n ) 



441 



by combining adjoining plots 2x2. The following are 

 the numerical values. 

 For grains produced, 



S(p) = 123429, S(p 2 ) = 70112319. N = 224, 

 p = 551.022, a,, 2 = 9375.826, 

 S{C P 2 ) = 277945243, m [n(n - 1)] =642, 

 [S(C P 2 ) — S(p 2 )]/m[n(n — 1)] =309275.184, 

 whence 



r PlP2 = .603 ± .029. 

 For percentage nitrogen, 



S(p) = 465.29, £(p 2 ) = 968.3721, N = 224, 



S(C P 2 ) = 3868.5047, w[»(ti - 1)] = 672, 

 [£(<?p 2 ) - S(p 2 )]/m[n(n - 1)] = 4.315673, 



and 



, 2 = .115 + .044. 



TABLE III 



1,667 1,652 



7.98 7.95 

 2,208 2,429 



2,074 j 2,140 



2,809 2,582 



