28 



BREEDING DROUGHT-RESISTANT FORAGE PLANTS. 



Table VIII.— Yield of millet selections of 1908 and of their progenies grown at Akron, 



Colo., in 1909. 





Individual plant selections 

 made at Bellefourche in 1908. 



Progeny grown at Akron in 1909. 



Variety and selection. 



Total dry 



weight of 



plant. 



Weight 

 of seed. 



Propor- 

 tion of 

 seed to 

 100 parts 

 of straw. 



Yields from actual stands. 



Stand in 

 . row. 



Total dry 



Total dry 



weight of 



plants. 



Weight 

 of seed. 



Propor- 

 tion of 

 seed to 

 100 parts 

 of straw. 



weight 

 calcu- 

 lated to 



a full 

 stand, a 



Kursk, No. 22420: 



1 



Grams. 

 100 

 125 

 150 

 130 

 130 

 145 

 100 



Grams. 

 29 

 43 

 25 

 27 

 29 

 30 

 29 



Per cent. 

 40 

 52 

 20 

 26 

 29 

 26 

 42 



Pounds. 

 18f 

 39 

 33| 

 42 

 33| 

 39J 

 28! 



Pounds. 

 ~l\ 

 18 

 14f 

 17 

 14| 

 17! 

 12 



Per cent. 

 63 

 86 

 79 

 68 

 73 

 80 

 73 



Per cent. 

 80 

 95 

 100 

 100 

 100 

 100 

 90 



Pounds. 

 23.2 



2 



41.0 



3 



33.5 



5 



42.0 



10... 



33.7 



13 



39.5 



15 



31.6 









126 



30 



34 



33 



14! 



75 





34.9 









Common, No. 22423: 

 1 



112 

 82 

 75 

 95 



100 

 65 



42 

 40 

 33 

 33 



38 



28 



60 

 95 

 79 

 53 

 61 

 76 



22! 

 13f 

 19! 

 27f 

 19J 

 24i 



10! 



4^ 

 6i 



13! 

 9 



12 



87 

 45 

 47 

 98 

 88 

 98 



80 

 75 

 70 

 95 

 95 

 95 



28.0 



2 



18.3 



3 



28.0 



4 



29.0 



7 . 



20.3 



8... 



25.6 







Average 



88 



36 



71 



21 



9 



77 





24.8 







Siberian, No. 22424: 

 1 



120 

 175 



25 

 25 



26 



. 17 



15! 

 37" 



6! 

 15! 



68 



72' 



80 

 90 



19.4 



4 



41.0 







Average 



147J 



25 



211 



26 



10.9 



70 





30.2 







a This calculation is doubtless too favorable to the rows in which the stand was incomplete, since the 

 plants growing near the gaps unquestionably yielded more heavily than would the average plant in a row 

 in which the stand is complete. 



The yields of millets in the progeny rows in 1909 were considerably 

 heavier at Akron than at Bellefourche. This fact is not only apparent 

 by comparison of the average yields of all the progenies of each 

 variety at Bellefourche (Table VI) and at Akron (Table VIII), but 

 generally holds good in the case of progenies of those individual 

 selections of which the seed was divided and planted partly at 

 Bellefourche and partly at Akron. The heavier yields at Akron 

 were doubtless largely due to the more favorable season at that 

 locality in 1909. The rainfall there was well distributed through- 

 out the growing season, while at Bellefourche there was less than 

 3" inches of rain during July and August, which is the critical 

 period in the growth of millet. It was noted that the yield of seed in 

 many of the rows at Akron was remarkably high. The average seed 

 yield of the Kursk progeny rows was 14| pounds per row, which is 

 equivalent to a yield of 25 bushels per acre. The largest yield, from 

 Kursk selection No. 2, of 18 pounds to the row, is at the rate of 32 

 bushels per acre. 



As shown by the averages for the progenies of each variety, the 

 Kursk is first in total weight of plant and weight of seed. The 



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