126 



Clyde E. Leighty 



Series 1257 



0- 1 



1- 2 



2- 3 



3- 4 



4- 5 



5- 6 



6- 7 



7- 8 



8- 9 

 9-10 



10-11 

 11-12 

 12-13 



Totals 



o 



y-t 



N 



CO 



■* 



in 



CD 



t» 



00 



OS 



^ 



1 



O 



J^ 



IN 



CO 



1 



lO 



1 



CD 



l> 



00 



o 



'-' 



(M 



00 



■* 



lO 



CD 



i> 



00 



o 



o 



:^ 



IN 



CO 



Tt( u 



-5 CD 



l> 00 



2 



23 



7 



9 



23 



5 



1 



11 



36 



5 



4 

 13 



18 

 4 



1 



12 



20 



4 



1 



6 



10 



5 



1 



1 



2 

 9 

 6 

 6 



1 



4 

 6 

 4 

 4 



1 



4 

 3 

 3 



1 

 1 



3 

 6 

 2 



1 



2 

 2 



1 



2 



1 



1 



1 



1 



30 38 52 39 38 22 24 19 11 13 



1 



34 



46 



56 



37 



33 



29 



23 



16 



11 



10 



4 



1 



1 



300 



Fig. 101. — Correlation between average yield of culm per plant, in decigrams, subject; and 

 average weight of straw per culm of plant, in decigrams, relative. Sixty Day 

 r = .925 ± .000 



For average yield of culm per plant and average weight of kernels per 

 plant (Figs. 102 to 105), the highest coefficient is .686 ± .021 for series 

 1200, and the lowest is .539 ± .028 for series 1219. The difference here 

 is .147 ± .035, which amounts to about four times its probable error. 



