FIELD CKOPS. 529 



per acre, for the five years 1903 to 1907, inclusive, was made by St. Omer. The 

 highest average yield of the seven years 1908 to 1914, inclusive, was made by 

 U. S. P. B. No. 120, namely, 59.39 bu. per acre, followed closely by St. Omer 

 with 59.31 bu. 



Twenty-two varieties of corn are described. 



Variety tests of com for 1914, G. M. Gaeren {North Carolina 8ta. Bui. 230 

 {1915), pp. 3-12). — This bulletin gives data on over 20 varieties of corn grown 

 in 1914 at the station and at the Buncombe, Iredell, and Edgecombe test farms 

 and summaries for a few varieties covering a period of six years (1909-1914) 

 at the Iredell and Edgecombe test farms. The tables include data on stand, 

 height, number of ears, yield, and shelling capacity. Among the higher yielding 

 varieties were First Generation Cross No. 182 of the Bureau of Plant Industry 

 of the U. S. Department of Agriculture, Biggs Seven-Ear, and Weekleys Im- 

 proved. 



Report on variety tests of cotton for 1914, R. Y. Winters (North Carolina 

 Sta. Bui. 231 {1915), pp. 5-i8).— The data in this bulletin show the yield of 

 seed cotton per acre, yield of lint and of seed, percentage of lint, length of 

 staple, weight of 100 bolls, and stand for the several varieties. The results 

 obtained from seed secured from both within and out of the State are sum- 

 marized as follows: 



At the experiment station farm the 65 varieties of short-staple cotton tested 

 ranged in yield between 1,375 and 765 lbs. of seed cotton per acre, with an 

 average of 1.023 lbs. The 15 varieties secured within the State ranged between 

 1.160 and 860 lbs., with an average of 974 lbs., indicating the need of more 

 careful selecting of seed in the State. The 12 long-staple varieties ranged 

 between 1,160 and 875 lbs., with an average of 1,009 lbs. 



At the Edgecombe farm the 16 short-staple varieties tested ranged in yield 

 between 1,305 and 870 lbs. of seed cotton per acre, with an average of 1,154 

 lbs. The 10 short-staple varieties from points within the State ranged be- 

 tween 1.310 and 870 lbs., with an average of 1.113 lbs. The 6 varieties from 

 points out of the State ranged between 1,305 and 1,140 lbs., with an average 

 of 1,222 lbs. The long-staple cottons ranged in yield between 1,520 and 1,045 

 lbs., with an average of 1.283 lbs. 



The variety test at the Iredell farm contained 25 short-staple varieties and 

 8 long-staple varieties, of which 9 short and 2 long staple varieties came from 

 points in the State. The short-staple varieties from out of the State gave an 

 average yield of 618.4 lbs. of seed cotton and 246 lbs. of lint per acre as com- 

 pared with 738 lbs. of seed cotton and 288 lbs. of lint for the locally grown 

 varieties. The 4 leading varieties were from seed secured in the State. Four 

 of the 9 local varieties produced lint less than seven-eighths of an inch in 

 length. 



Cauto tree cotton, H. H. Cousins {Bui. Dept. Agr. Jamaica, n. ser., 2 {1915), 

 No. 8, pp. 33Jf, 335, pis. 8). — This notes the successful cultivation of a wild variety 

 of cotton. Gossypium brasiliense, var. apospermuni, discovered in the jungles 

 of Cuba. Yields of this perennial cotton reached 600, 700, and 900 lbs. of seed 

 cotton per acre in successive years. The lint as grown in Jamaica is stated to 

 be of good quality. 



A preliminary note on the factors controlling the ginning per cent of 

 Indian cottons, H. M. Leake {Jour. Genetics, 4 {1914) No. 1, pp. 41-^7).— This 

 presents the results of a study to determine factors that influence the ginning 

 percentage of cotton and make it clear how the offspring of two parents, each 

 having a ginning percentage of from 25 to 26, could have a percentage ranging 

 from IS to 36. 



