14 



respectively; and those grown in California in 1907 from California 

 1906 seed, Kansas 1906 seed, and Texas 1906 seed gave 11.3 per cent, 

 11 per cent, and 11.4 per cent, respectively. It will thus be seen that 

 apparently the crop is not at all influenced by the composition of the 

 seed nor byjthe origin of the same; that is, California seed of 1906 

 with 10.4 per cent of protein gave a crop containing 22.2 per cent in 

 Kansas in 1907, an increase of 120 per cent; moreover, Texas seed 

 with 12.2^>er cent of protein gave a crop containing 22.8 per cent in 

 Kansas; and Kansas 1906 seed with 19.1 per cent of protein yielded 

 a crop with 22.2 per cent when again grown in Kansas in 1907. In 

 other words, all the grain grown in the three plots in Kansas from 

 California, from Texas, and from Kansas seed, whose protein content 

 varied from 10.4 to 19.1 per cent, produced a crop of identical protein 

 content and of practically the same composition generally, the weight 

 per 1,000 grams, the weight per bushel, and the character of the grain 

 being the same. In the same way when the Kansas seed with 19.1 

 per cent of pro tern, the Texas seed with 12.2 per cent of protein, and 

 the California seed with 10.4 per cent of protein were all grown in 

 California, the composition of the grain from the three plots was 

 almost identical, namely, 11 per cent, 11.4 per cent, and 11.3 per 

 cent of protein. The other constituents and the physical character- 

 istics were likewise practically identical in all three samples. The 

 three samples grown in Texas from Kansas seed, from California seed, 

 and from Texas seed also showed the same composition and physical 

 appearance, although, as previously shown, the seed producing them 

 varied widely both physically and chemically. Similar results were 

 obtained from Kubanka wheat grown in South Dakota, Kansas, and 

 California, and such was also the case for both Crimean and Kubanka 

 seed at the several stations during 1908. 



Wheats of the same variety when grown in the same locality and 

 under the same conditions are, therefore, seen to vary but little in 

 composition, although coming from seed differing widely in physical 

 and chemical characteristics. These results are corroborative of 

 Eckenbrecher's w^ork with barley and are entirely at variance with 

 HalFs statement, previously quoted, namely, that "each race or 

 variety possesses qualities which are modified only to a slight degree 

 by seed, soil, or climate." 



EFFECT OF ACCLIMATION. 



Inasmuch as the percentage of protein is somewhat higher in the 

 crop grown in Kansas or South Dakota from California seed than 

 the crop grown continuously in Kansas or South Dakota, it may 

 possibly be claimed that in general seed, taken from a locality with a 

 long period of growth, such as California, to a locality with a shorter 



[Bull. 128] 



