VARIETIES INTRODUCED INTO THE UNITED STATES. 29. 



MAMMOTH. 



The Mammoth is at present the most important soy bean grown 

 in the United States. It has also been known as Late, Yellow, Late 

 Yellow, Southern, and Mammoth Yellow. 



The date of introduction of this variety is very obscure, and 

 nothing definite is known regarding its origin. None of the numer- 

 ous recent introductions are identical and but one is closely similar, 

 namely. No. 22318, from Erfurt, Germany, received as ''Yellow 

 Riesen." It is not probable, though, that this was German-grown 

 seed, as so late a variety could scarcely mature in Germany. Sev- 

 eral varieties from Shanghai, China, and from Japan are closely 

 related. It may possibly be the "white-seeded" soy bean intro- 

 duced by the Perry expedition. We have been unable to find any 

 early published records that definitely refer to this variety. It is not 

 improbable that it is this variety that was grown at the North Carolina 

 Agricultural Experiment Station in 1882. There can be but little 

 doubt that it is the "soja" bean from T. W. Wood & Sons, Rich- 

 mond, Va., grown by the Kansas Agricultural Experiment Station 

 in 1889 " and in 1890. ^ Since 1895 Mammoth has been a well-known 

 variety. 



BUCKSHOT. 



The history of this variety is somewhat complicated. It has been 

 obtained from the following American sources : 



Agrostology No. 1184, "Black," from Rhode Island Agricultural Experiment Station, 

 spring, 1903. 



Agrostology No. 1301, "Early," from Johnson & Stokes, March, 1902. 



Agrostology No. 1303, "Extra Early Black," from J. M. Thorburn & Co., March, 1902. 



Agrostology No. 1304, from W. A. Burpee, March, 1902. 



Agrostology No. 1474, "Extra Early Black," from Hammond Seed Company, March, 

 1903. 



Agrostology No. 2033, "Crossbred No. 9," from the Arkansas Agricultural Experiment 

 Station, May, 1904. "Crossbred No. 9" of Evans is really Ogemaw, while his 

 " Crossbred No. 6 " is Early Black or Buckshot. These two numbers were exactly 

 reversed at the Arkansas Experiment Station, as the variety received from that 

 station as "Crossbred No. 6 " (Agrostology No. 2031) proved to be Ogemaw. 



All of the foregoing were later united as S. P. I. No. 17251. 



S. P. I. No. 6334, from Tokyo, Japan, April 20, 1901. Among the progeny of this 



are S. P. I. Nos. 8491, 9412, and probably 11179, and Agrostology No. 1292. 

 S. P. I. No. 19987, from Yokohama, Japan, 1907. 

 S. P. I. No. 22883, from Tokyo, Japan, 1908. 

 S. P. I. No. 22322, "Early Black from Podolia," Haage & Schmidt, 1908. 



a Report, Kansas Agricultural Experiment Station, 1889, p. 43. 

 ''Bulletin 19, Kansas Agricultural Experiment Station, p. 201. 



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