1074 



EXPERIMENT STATION RECORD. 



Wheat, J. N. Harper (Kentucky Sta. Bui. 115, pp. 49-60). — Field tests were made 

 with a number of varieties of wheat and the yields obtained, together with other 

 data, are shown in a table. Notes and descriptions of the different varieties are also 

 given. 



The wheat was sown ( h-tober 21, 1903, at the rate of 6 pk. per acre in drills 7 in. 

 apart. Canadian Hybrid ranked first in yield of grain and straw, with 47.2 bu. of 

 grain and 4,480 lbs. of straw per acre, respectively. In yield of grain this variety 

 was followed by Dawson Golden Chaff with 44.4, Pearl Prolific with 42.2, and Turk- 

 ish Red with 40.2 bu. per acre. Pearl Prolific and Improved Rice ranked first in 

 earliness, ripening June 21. All varieties were ripe by July 1. 



Glutenous and starchy grains, II. Snyder (Minnesota Sta. Bui. 90, }>p. 219-225, 

 pi. l,fig. 1). — Former work on the physical characteristics of glutenous and starchy 

 wheats has been previously noted (E. S. R., 15, p. 1095). The results of additional 

 determinations of protein in starchy and glutenous wheats, similar to those obtained 

 in the earlier work, are here reported without further discussion. 



The influence of the germ upon the nitrogen content was determined. With the 

 germ removed the samples contained 0.56 per cent less protein than entire kernels, 

 and the end of the kernel opposite the germ end contained 1.38 per cent less protein 

 than the germ end. A study of separate heads disclosed differences in the nitrogen 

 content of individual kernels grown from the same glutenous seed. The tabulated 

 results show that the germ in 4 samples of heads from a uniform lot of seed con- 

 tained an average of 14.57 per cent of protein on a dry-matter basis, the range being 

 from 13.81 to 18.45 percent. The protein content of glutenous and starchy kernels 

 produced from the same head also showed small but appreciable differences. 



Analyses of samples of starchy and glutenous kernels selected from Minnesota- 

 grown corn showed differences ranging from 0.5 to nearly 1.5 per cent in protein 

 content in favor of the glutenous kernels. It was observed that the glutenous ker- 

 nels from the same lot of seed were, in general, of a darker hue than the starchy 

 kernels, but in the samples of yellow and white corn analyzed the protein content 

 showed no connection with the color. 



in samples of rye light and dark colored grains corresponding to hard glutenous 

 and softer starchy kernels were readily distinguished. In 4 samples the average 

 protein content in the starch}' grain was 10.16 per cent and in the glutenous grain 

 10.91 per cent. The darker and more flinty kernels contained from 0.5 to 1.5 more 

 protein than the lighter colored or more starchy ones. Greenish kernels had a 

 high protein content. Tests made with oats showed that dark amber-colored flinty 

 kernels were higher in protein than kernels of the light-colored starchy type selected 

 from the same lot and grown from similar seed, while greenish kernels contained 

 more than either. The protein in the different samples ranged from 10.98 to 14.68 

 per cent. 



Rusted wheat, H. Snyder (Minnesota Sta. Bui. 90, pp. 228-231).— The effect of 

 rust on the chemical composition of the grain and straw, the composition of straw 

 subjected to different degrees of rust injury, and of rust-free straw, is given in the 

 table below: 



Composition of wheat straw samples. 



Condition. 



Badly rusted 



Do 



Not seriously rusted 

 Very lightly rusted . . 



Slightly rusted 



Rust free 



Grain not well tilled 



Water. 



9.81 

 7.74 

 8. -16 

 9.22 

 7.67 

 8.32 

 7.22 



Ash. 



Per cent. 



8.05 

 6.03 

 6.73 

 6.44 

 6.42 

 6.78 

 6.68 



Protein. 



I'< r a nt. 

 6.28 

 6.94 

 ft. 06 

 4.38 

 4.58 

 3.77 

 6.19 



Fat. 



Per cent. 



0.98 

 .51 

 .96 



.97 



1.16 

 1.05 



Carbon y 

 d rates. 



I'i I' CI III. 



27. 74 

 30.08 

 31.48 

 32.86 

 40. 35 

 42.29 

 36.15 



Crude 

 fiber. 



Per rent. 

 47.19 

 48.70 

 47.31 

 46.13 

 40.98 

 37.68 

 42. 71 



