Variation and Correlation of Oats — Part II 163 



TABLE 16. Correlations, Series 68, 102, 118. Degrees of Crowding (concluded) 



Average weight of kernels per plant, in milligrams — Average number of kernels per culm 



of plant 

 68.-. ... r= .288± .036 102. . . . r = .471 ± .030 118. . . . r = .487 ± .030 



Average weight of kernels per plant, in milligrams — Average height of plant, in centimeters 

 68 r=. 450 ±.031 102. . . . r = .733 ± .018 118. . . . r = .714 ± .019 



Average weight of kernels per plant, in milligrams — Average length of head per plant, in 



centimeters 

 68..... r= .265± .036 102. . . . r = .535 ± .028 118. . . . r= .606 ± .025 



immediately beneath the characters correlated. Those for the least 

 crowded condition are in the first column at the left, those for the most 

 crowded condition are in the column at the right. 



The average yield of culm per plant has been correlated with nine 

 different characters. Taking up for consideration the correlation between 

 this character and average height of plant (Figs. 121 to 126), it is seen 

 that the highest correlation for line 50 is in series 100, where it is .881 ± 

 .009; and for line 62 in series 102, where it is .863 ± .010. These are 



Series 63 



Totals 



i 



i 



S § Totals 



1- 2 



1 



1 5 



3 



3 















13 



2- 3 





3 



4 



2 



2 













11 



3- 4 



1 



2 



7 



10 



6 



2 



1 









29 



4- 5 







2 



4 



13 



o 



2 









26 



5- 6 





1 



2 



3 



14 



14 



o 



1 







40 



6- 7 









3 



4 



17 



12 



8 







44 



7- 8 











1 



o 



10 



3 



5 





24 



8- 9 





"* 







1 



2 



6 



6 



3 





18 



9-10 













1 



3 



7 



4 



2 



17 



10-11 













2 



1 



2 



3 



1 



9 



11-12 



















3 



2 



5 



12-13 















1 





1 





2 



1 11 18 25 41 48 41 27 19 



238 



Fig. 121. — Correlation between average yi^ld of culm per plant, in 

 decigrams, subject; and average height of plant, in centimeters, relative 

 r = .811 ± .015 



