830 EXPERIMENT STATION RECORD. [Vol.35 



bicolor and more or less inherited the parental amount of pigment, whl<ii is 

 considered as proving that there are three genetic differences in this cross con- 

 cerned with pigment in the seed coat. 



Data secured in studying the inheritance of the length of pod in the Florida- 

 Yokohama cross are also reported. 



In breeding corn, crosses were made between the best West Indian variety 

 and the best varieties of north Florida, Georgia, and Alabama. Selection 

 was made for pure white, flinty, deep, and fairly large grains, long, compact, 

 and drooping ears, with about twelve straight rows and tightly fitting husks, 

 narrow cob, and two good ears on the stalk. In the fourth generation of 

 a cross between Mosby and Cuban a plant was found meeting all the re- 

 quirements, but in the fifth generation in 1915 some undesirable qualities 

 appeared which are to be eliminated by further selection. 



A cross between Cuban field corn and Black Mexican sweet corn was selected 

 for white, well-wrinkled, translucent grains, ears with about twelve rows, 

 and good growth in hot weather. A tjrpe of sweet corn was developed which 

 seems to grow better in central Florida when planted late than either Black 

 Mexican, Stowell Evergreen, or Country Gentleman. 



A cross between Mosby field corn and Black Mexican sweet corn was made 

 for the purpose of developing a sweet corn having white, well- wrinkled, trans- 

 lucent, and large grains, and six-rowed, long ears. The selected second- 

 generation stalk was six-rowed, as were all subsequent ears. 



Commercial varieties of alfalfa, R. A. Oakley and H. L. Wkstoveb (U. S. 

 Dept. Agr., Fanners' Bui. 757 (1916), pp. 24, figs. 7). — This describes the com- 

 mercial varieties of alfalfa as divided into five groups, the common, Turkestan, 

 variegated, nonhardy, and yellow-flowered groups. The history, cultural status, 

 characters, adaptation, and value of each group and the principal varieties 

 and strains it includes are noted. Varieties and strains recommended for 

 various sections of the United States are enumerated, and directions for pur- 

 chasing seed are given. Seed production and possibilities in breeding are 

 briefly discussed. 



Transplanting alfalfa, N. E. Hansen {South Dakota Sta. Bui. 167 (1916), 

 pp. 424-445, fi^s. 9). — This bulletin discusses in a general and popular way the 

 transplanting of alfalfa by means of transplanting machines and by hand, 

 gives directions for digging, storing, and shipping plants for transplanting, 

 and enumerates the reasons why the practice is desirable. 



Report on com and cotton varieties at the Georgia Experiment Station for 

 1915, C. K. McClelland (Oeorgia Sta. Circ. 74 (1916), pp. 8).— The usual 

 variety trials with corn and cotton for the year 1915 are described, and 

 the results of the different varieties are listed. 



The 16 varieties of corn under test ranged in yield from 24.3 bu. to 33.7 

 bu. per acre, produced by Virginia Ensilage and Steinheimer Marlboro, re- 

 spectively. The strains of Marlboro corn again demonstrated the superiority 

 of the variety. The earlier maturing varieties such as Virginia Ensilage, 

 Mexican June, and Hickory King appeared at the foot of the list. 



The yields of 45 short-staple and 5 long-staple varieties of cotton are 

 reported. Cleveland Big Boll ranked first in yield of seed cotton per acre, 

 but considerable variation in the different strains of seed of this variety 

 was observed. 



[Cane. — Fertilizer and composition studies], J. M. Scott (Florida Sta. Bpt. 

 1915, pp. XXIY-XXXI). — A fertilizer experiment with Japanese cane, pre- 

 viously described (E. S. R., 34, p. 831), is reported and the results of six crops 

 grown since 1909 are given in tables. The data presented confirm earlier con- 

 clusions and recommendations. A second fertilizer experiment with Japanese 

 cane begun in 1914 is briefly described and the first year's results are tabulated. 



