Variation and Correlation of Oats — ^Part I 



39 



.918±.005 for 1910 to .980±.001 for 1912; while that between total 

 yield and average number of kernels per culm per plant (Figs. 32, 33, 34), 

 determined for three years, varies from .670zb .019 for 1912 to .769± .012 

 for 1909. These correlations are very high, especially those between 

 the totals, and are stable from year to year. In fact, since the total 





S 



u 



^ 



s 



s 



o 



o 



8 



1 



o 



§ 







i 



^ 



1 



^ 



§ 



s 



1 



o 



1 





1 



o 

 o 



1 



o 





0- 1 



6 



7 



3 



8 



1 















25 



1- 2 





11 



27 



15 



6 



2 







1 







62 



2- 3 







14 



41 



30 



9 



2 











96 



3- 4 









19 



45 



22 



9 



1 









96 



4r- 5 









2 



19 



37 



15 



8 









81 



5- 6 











2 



9 



15 



18 



3 







47 



6- 7 









1 



4 



4 



13 



8 



7 



3 





40 



7- 8 









1 



1 



5 



15 



3 



5 





1 



31 



8- 9 















2 



7 





1 





10 



9-10 















2 











2 



10-11 















1 



1 



1 



2 





5 



11-12 

















2 









2 



12-13 





















1 





1 



13-14 















2 











2 





6 



18 



44 



87 



108 



88 



76 



48 



17 



7 



1 



500 



Fig. 32. — Total yield of plant in grams, subject 



Average number of kernels per culm per plant, relative. 1909 

 Coefficient of correlation = .769 ± .012 



CO '^ lO CO 



0-1 

 1-2 

 2-3 

 3-4 

 4-5 

 5-6 

 6-7 

 7-8 

 8-9 



A 



(J, 



1 



o 



^ 



A 



1 

 o 



1 



1 

 o 



c^ 



CCJ 



T}< 



lO 



CO 



!> 



00 



C5 



3 

















7 



17 



13 



9 



3 



1 







2 



13 



47 



31 



8 



3 



2 





1 



2 



27 



45 



29 



4 



1 







1 



9 



19 



28 



20 



2 



1 









6 



8 

 1 



18 

 4 



1 



10 



2 



2 



13 33 96 110 77 51 17 



3 



50 



106 



109 



80 



42 



7 



2 



1 



400 



Fig. 33. — Total yield of plant in grams, subject 



Average number of kernels per culm per plant, relative. 1910 

 Coefficient of correlation = .^80 =t .018 



