FIELD CROPS. 



835 



Rye grass culture, H. Mayee Gmelin (Meded. Rijks Hoogere Land, Tuin en 

 Boschbouivsch. [Wageningen], 8 (.1915), No. 4, pp. 161-195) .— Results are given 

 of cooperative experiments Avith several farmers to demonstrate the relative 

 values of ordinary English rye grass, Improved English rye grass, and Italian 

 rye grass. The average yields of hay for 1914 were, respectively, 295.25 kg. 

 (3 cuttings), 318.25 kg. (3 cuttings), and 365.8 kg. (2 cuttings) per 100 square 

 meters (119.6 sq. yds.). 



Uses of sorghum grain, C. R. Ball and B. E. Rothgeb (U. S. Dept. Agr., 

 Farmers' Bui. 6S6 (1915), pp. 16, figs. 12). — This discusses the uses of sorghum 

 grain as a feedstuff and as a food, with data as to the digestibility, preparation, 

 and storage of the grain. 



Statistical data also show the value and acreage of gi-ain sorghums in parts of 

 Kansas and Oklahoma in comparison with the corn crop. 



Chemical analyses of air-dry samples of various grain-sorghum varieties 

 grown at the Amarillo Cereal Field Station, Amarillo, Tex., from 1908 to 1912, 

 inclusive, are reported and summarized below : 



Composition of various grain sorghums. 



Studies in Indian sugar canes. — I, Punjab canes, C. A. Barber (Mem. Dept. 

 Agr. India, Bat. Ser., 7 (1915), No. 1, pp. 112, pis. 19, fig. i).— The classes of 

 cane found in the Punjab are given. The morphological characters used in the 

 description of the classes of cane are cane measurements, color of cane, and 

 characters of the joint, bud, leafy shoot, leaf sheath, and lamina. 



Morphological study of variation in wheats with, special reference to spike 

 form, L. Detzel (Landio. Jahrb. Bayern, ^ (19U), No. 10, pp. 839-902, pis. 27, 

 figg^ 5). — This gives data secured by measurements of the length, thickness, and 

 weight of internodes of stems of wheat plants, and discusses the tillering and 

 the relation of parts of the plants to the structure of the spike. An apparatus 

 for measuring the internodes of the spike is described, also ten types of spikes 

 on the basis of the structure and form of the spike. "A close relationship exists 

 between the general morphological structure of the plant and the minor forms 

 of the plant parts,, which relationship can be slightly modified by certain 

 influences." 



