26 



Maine Agricultural Experiment Station. 1920 



Yield and Weight per Measured Bushel of Pure Lines Grown 

 in ipi8. — Concluded. 



MINNESOTA LINES. 











Yield of Grain 





Mains 



Minnesota 

 Access. No. 



Selected from 

 Variety 











Access. 







Weight per 



No. 







Plot 



Pounds 



Bushels 



measured 









No. 



per plot 



per acre 



bushel in lbs. 



187 



1239 



Marquis 



888 



6.56 



35.81 



60.5 



182 



337 



Speltz Ma rz 















(durum) 



878 



11.25 



34.62 



64.5 



183 



1011 



Velvet Chaff 



-.• 



10.25 



34.29 



60.5 



186 



1037 



Rovalton (Red) 



872 



1 



34.17 



60.8 



180 



169 



HavnrS Bluest?!!! 



879 



11.00 



33.85 



59.8 



185 



1037 



Roya:ton (Whits) 



897 



13.13 



32.59 



60.5 



judging the relative strength of straw of the different lines. The 

 smaller plots were cut by hand with the sickle or cradle, the lar- 

 ger ones were reaped with the binder. The threshing was done 

 according to the size of the plots, either with the small threshing 

 machine used in threshing experimental plots up to one-eightieth 

 acre in area, or with the large, farm threshing machine. The 

 yields of 44 pure lines and the bushel weight of most of them 

 are given in Table 4. 



While relatively considered, these plots are of different size 

 and absolutely taken, quite small, there were enough plots of ap- 

 proximatly the same area to give some idea of the behavior of 

 these lines as to yield. An inspection of Table 4 will show a con- 

 siderable variation in the yield of the different lines. Every vari- 

 ety contains strains of high and low yielding capacity. In the 

 cases where a larger yield was obtained from an equal or smaller 

 area the differences in yield are probably significant. Consid- 

 ering the larger plots in which the Canada Red strains grew, 

 this variety furnished a number of high yielding lines. Some 

 of the Preston lines yielded well, as did some of the Red Fife 

 and Bluestem lines. The Minnesota lines very well approached 

 the yielding capacity of the Aroostook lines. 



From Table 4 it will be noted that these lines test rather 

 high and that there is little variation in the bushel weight. Only 

 two of the 44 lines tested appreciably below the standard weight, 

 the great majority exceeding it by 0.5 to 3 pounds, and in one 

 case (durum) by 4.5 pounds. The Preston lines stand out rather 

 prominently with their higher bushel weight, and it is of interest 



