17 



per cent, respectively. Such wheat grown in California the previous 

 year, and already somewhat acclimated, gave only 40 and 71 percent 

 of starchy grains, respectively, thus possibly showing in another way 

 that wheats taken from a continental climate to a coast climate will 

 show a lower value or greater deterioration the first year than seed 

 acclimated to a coast climate. That the reverse is just as true when 

 wheat grown in a coast climate is transported to a continental cli- 

 mate is shown by the following illustration: The California seed 

 with 87 per cent of starchy grains gave a crop in South Dakota with 

 only 2 per cent of starchy grains, whereas the seed grown continuously 

 in South Dakota had 12 per cent. The California Crimean wheat 

 of 1906, with 64 per cent of starchy grains, gave a crop in Kansas with 

 absolutely no appearance of starchy grains. It was, in fact, identical 

 with the seed grown continuously in Kansas. These figures again 

 show what a tremendous factor climate is. The results further show 

 that the white spots on grains are not necessarily hereditary nor, in 

 fact, are any of the characteristics mentioned. They appear rather 

 to he influenced almost altogether by climatic conditions prevailing 

 during the growing period or even previous to the planting of the crop. 

 In California the weights per 1,000 grains and per bushel are much 

 larger than in Kansas, but the percentages of protein and of flinty 

 kernels are much less. The percentage of sugars seems to increase 

 slightly when Kansas and South Dakota seed are grown in California. 

 There is not much, if any, difference, however, in the percentage of 

 fat. liher, pentosans, and ash. Similar differences are observed 

 bet \\een California and Texas, and Kansas and Texas, though in 

 the>e eases the differences are not so large, Texas being somewhat 

 Intermediate, 



RELATION BETWEEN ABSOLUTE WEIGHT AND PERCENTAGE OF 

 PROTEIN IN THE GRAIN. 



inlinir the relative amount of protein in large and small grains, 

 it is sometimes assumed that the large berries though low in per- 

 centage of nitrogen yet contain as much nitrogen per berry as do 

 t he -mailer irrain-. which have a higher percentage of nitrogen. That 

 surh is not always the case will be seen when these data are carefully 

 examined. In the table showing the results on Crimean wheat it is 

 seen that the Kansas 1907 crop contained 22.2 per cent of protein, 

 with a weight per 1,000 grains of 20.5 grams and per bushel of 51.3 

 pounds, whereas the California 1907 crop had 11.3 per cent of pro- 

 tein and weighed 33.3 grams per 1,000 grains and 61.8 pounds per 

 bushel. From this it is seen that 1,000 grains of Kansas grown 

 wheat contained 4.6 grams of protein compared to 3.7 grams of pro- 

 tein for 1,000 grains of California wheat; 1,000 of the smaller Kansas 

 grains contained 20 per cent more protein than 1,000 large California 



[Hull. IL'S] 



