IIlRATSUKA : STUDIKS ON THK FLAX RlST 



»9 



~,. . .. - »I, u f Maximum 43 C. 



The temperature m the green-house < .-. . T.or- 



^ I Mmmium 1 1 C. 



Experiment / '/ iind 1 '//. 



In the spring of 1925, 17 varieties and strains of flax were kindly sent 

 by Mr. L. H. Dewey, Bureau of Plant Industry, United States Department of 

 Agriculture, at the author's request. These varieties and strains were obtained 

 by Mr. Dewev from two breeders, Mr. A. C. Dili.man of Mandan, North Da- 

 kota and Mr- B. B Robinson, St. Paul, Minnesota. 



These varieties or strains are enumerated as follows : — 

 from A. C. Dillman : 



1. Flax C. I. No. 168. Grown at Mandan, N. D, in 1917. (A natural 

 hybrid found in yellow seeded flax C }f25.) 



2. Flax C. I. No. 169. Grown at Mandan, N. D. 1917. (Hybrid of C. 

 }f'3 by #25. C. #13 is brown seeded short fiber type, and C. #25 yel- 

 low seeded dwarf much branched type.) 



3. Flax C. I. No. 170. Grown at Mandan, N. D. 1917. (Hybrid between 

 C. #19 and #25. C ^19 is of the European type.) 



4. Flax C. I. No. 301. St. I. 58763. Abyssinia. 



5. Flax C. I. No. 280. Sei. N. D. R. Long 79. (Argentine Sei.) 



6. Flax C. I. No. 116. Cayagneo. (Type of fla.x grown in Argentina.) 



7. Flax C. I. No. 25. Williston Golden. (Moccasin, Mont. 1924.) 

 from B. B. Robinson : 



8. Blue Blossom Dutch. 



9. White Blossom Dutch. 



10. Ottawa 770 B. 



11. Ottawa 829 C. 



