Variation and Correlation of Oats — Fart I 



55 



CSl CO ^ lO 





r-i ^ 



T-l 



^ 



T-l 



5 



.— 1 



1— 1 



--1 



^ 



(M 







o o 





CM 



CO 



o 



o 





CO 



^ 





11.5-12.5 









1 















1 



12.5-13.5 





1 





1 







1 



1 







4 



13.5-14.5 







1 



6 



2 



1 



2 



3 



1 





16 



14.5-15.5 





1 



1 



2 



6 



10 



13 



11 



3 



3 



50 



15.5-16.5 





1 



2 



4 



12 



14 



26 



9 



3 



1 



72 



16.5-17.5 



1 



1 



4 



11 



15 



22 



24 



22 



2 



1 



103 



17.5-18.5 



1 



2 



5 



12 



12 



21 



18 



8 



3 



1 



83 



18.5-19.5 







1 



7 



5 



14 



3 



4 



3 





37 



19.5-20.5 



1 







3 



4 



5 



6 









19 



20.5-21.5 



- 







2 



2 



5 



1 









10 



21.5-22.5 





2 



2 

















4 



22.5-23.5 



























23.5-24.5 







1 

















1 



1 2 8 17 49 58 92 94 58 15 6 



400 



Fig. 59.- 



- Average weight of kernels per plant in milligrams, subject 

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

 Coefficient of correlation = — .190 dz .033 



only two years, varies from — .190±.033 for 1910 to .120±.030 for 

 1909. These coefficients are not large enough to be of importance in 

 either case, and indicate that the large and the small kernels appear about 

 equally in spikelets containing many or few kernels. 



The correlation between average weight of kernels per plant and number 

 of culms per plant (Figs. 60, 61, 62), determined for three years, varies 





1 



2 



3 



4 



5 



6 



7 



8 



9 10 11 





8.5- 9.5 





1 





1 













2 



9.5-10.5 





1 

















1 



10.5-11.5 



1 







1 













2 



11.5-12.5 







1 



1 



1 











3 



12.5-13.5 









3 













3 



13.5-14.5 





3 



4 



7 



3 





1 







18 



14.5-15.5 





9 



23 



31 



18 



4 



5 



3 





93 



15.5-16.5 



5 



14 



39 



80 



22 



14 



7 



4 





185 



16.5-17.5 



5 



14 



32 



54 



17 



11 



3 





1 1 



138 



17.5-18.5 



1 



6 



8 



16 



3 



1 



2 





1 



38 



18.5-19.5 



1 



1 



8 



4 





1 



1 







16 



19.5-20.5 





1 

















1 



13 50 115 198 64 31 19 



1 



500 



Fig. 60. — Average weight of kernels per plant in milligrams, subject 

 Number of culms per pla7it, relative. 1909 

 Coefficient of correlation = — .021 ± .030 



