lis Clyde E. Leighty 



Series 1257, 



i-H rt (N 



0- 1 



12 



17 



5 





































34 



1- 2 





2 



17 



18 



8 



1 































46 



2- 3 







1 



9 



24 



14 



6 





1 

























55 



3- 4 













9 



18 



5 



3 



2 























37 



4- 5 













3 



4 



10 



9 



5 





2 



















33 



5- 6 



















8 



9 



9 



1 



1 



1 















29 



6- 7 





















2 



11 



5 



3 





2 













23 



7- 8 























2 



1 



6 



3 



4 













16 



8- 9 



























2 



3 



6 













1? 



9-10 































6 



2 





1 



1 





10 



10-11 

































2 



2 









4 



11-12 









































1 



1 



12-13 









































1 



1 



Totals 12 19 23 27 32 27 28 15 21 18 22 9 12 7 18 4 2 1 1 2 300 



Fig. 93. — CorrelatioJi between average yield of culm per plant, in decigrams, subject; and 



average number of kernels per culm of plant, relative. Sixty Day 



r = . 965 ±.003 



For average yield of culm per plant correlated with average number of 

 spikelets per culm of plant (Figs. 94 to 97), there is an extreme difference 

 of .069 db .006 between the coefficients. Series 1238 is again highest, 

 with .985 ± .001, and series 1219 is again lowest, with .916 ± .006. The 

 difference is more than eleven times its probable error. 



For average yield of culm per plant correlated with average weight of 

 straw per culm of plant (Figs. 98 to 101), the highest coefficient is 

 .944 ± .004, agam for series 1238, and the lowest is .818 ± .013 for 

 series 1200. The difference here, .126 ± .014, is nine times its probable 

 error. 



