EXPERIMENT STATION RECORD. 431 



FIELD CROPS. 



f 



First aid to the settler, E. J. Delwiche {Wisconsin Sta. Bui. 260 (1915), 

 pp. 3-4S, figs. 29). — This bulletin is intended for the use of the settler of small 

 means in upper Wisconsin and offers suggestions of general interest on the 

 selection of the land, methods of clearing and cropping, buildings and equip- 

 ment, cooperation, and marketing. 



Economy in feed products, N. Laksson (Nord. Mejeri Tidn., 30 {1915), No. 2, 

 pp. 16-19). — The varieties of root crops recommended for cultivation in southern 

 and central Sweden are the Barres beet and the Drottning (Queen) turnip or 

 ruta-baga. 



Manure is considered the best fertilizer, but potash in the form of kainit gave 

 excellent results with the beets, 37 per cent better than results obtained with 

 pure potash salts. Phosphoric acid in the form of Thomas phosphate was very 

 beneficial in the culture of beets. Nitrogen was likewise used, immediately be- 

 foi-e the sowing of tlie seeds, in the form of calcium cyanamid. This hastened 

 the development of the beets. As previously reported by Bolin (E. S. R., 30, p. 

 822), a more abundant harvest was obtained by using half calcium cyanamid 

 and half nitrate of soda than when either was used alone, and at less cost. 



Report of the department of agriculture, J. C. Pagliery {Estac. Expt. 

 Agron. [Cuba], Informe An. 3 {1909-1914), pp. 9-27, pis. 3).— This is a con- 

 densed report covering the period from 1909 to 1914, inclusive, and notes variety, 

 fertilizer, and cultural tests with sugar cane and corn, variety tests with sweet 

 potatoes, and data as to the classification of Cuban tobacco. 



Alfalfa growing' in Wisconsin, R. A. SIoore and L. F. Gkabek {Wisconsin 

 Sta. Bid. 259 {1915), pp. 3-32, figs. 12). — This bulletin discusses the production 

 of alfalfa in Wisconsin, covering soil preparation, methods of seeding and 

 harvesting; and notes regarding its value. 



Inheritance of length of pod in certain crosses, J. Belling (U. S. Dept. 

 Agr., Jour. Agr. Research, 5 {1915), No. 10, pp. 405-420, pi. 1). — ^This article 

 presents data obtained at the Florida Experiment Station showing the length 

 measurements of pods in plants resulting from crossing reciprocally the Florida 

 velvet bean {StizoloMum deeringianum) with the Philippine Lyon bean {S. 

 niveiim) carried to the fourth generation (E. S. R., 29, p. 228), and discusses 

 the results qualitatively and quantitatively. 



The author summarizes the investigation as follows: "A single genetic 

 difference, E, is responsible for the main difference between short and long 

 pods. This genetic difference segregates in normal Mendelian fashion. Factor 

 E is completely quantitatively dominant, so that E2=Ee. This factor acts as 

 a multiplier, with a multiplying value of about 1.51. Minor factors for pod 

 length also act as multipliers, with a combined multiplying value (when double) 

 of about 1.42. These minor factors apparently show zero dominance, in the 

 sense that if A2B2C2 . . . are positive double factors with a combined multiply- 

 ing value of X, the value of AaBhCc . . . isVa;." 



Further esperiments on inheritance in maize, H. K. Hayes and E. M. East 

 {Connecticut State Sta. Bui. 188 {1915), pp. 31, pis. 7). — ^This paper is a report 

 on the inheritance of certain diffei'ences in the endosperm of various maize 

 races that have been made the basis of a division into the subspecies Zea mays 

 everta, indurata, indent ata, and amylacea. To these investigations a genetic 

 study of the shape of seed which characterizes the so-called rice pop corns is 

 added. The work continues that previously noted (E. S. R., 25, p. 736; 29, 

 p. 333). Tables show the resulting corneous, floury, dented, and pointed char- 

 acteristics of the various crosses. 



