236 EXPERIMENT STATION EECORD. [Tel. 85 



The production and handling of grain in Argentina, L. Duval {U. S. Dept 

 Agr. Yearbook 1915, pp. 281-298, pis. i2).— This article describes the cereal 

 producing region of Argentina; points out the importance of cereal and flax 

 production in that country; and describes the methods of growing, handling, 

 and marketing of corn, wheat, oats, and flax, special attention being given to 

 the classes of corn grown, the planting, harvesting, and storing of the crop, 

 and to the seeding, harvesting, and threshing of wheat, oats, and flax. The 

 classes and varieties and types of wheat commonly grown are briefly noted. A 

 description is given of the grain storage facilities of the country and of the 

 classification and inspection of grain and of grain contracts. The use of ware- 

 house certificates in the grain trade is briefly explained. 



Seed corn for the 1916 crop, H. D. Hughes and W. W. Stanfield (lotoa Hia. 

 Circ. 28 {1916), pp. 3-16, figs. 6).— The results of a study of seed-corn conditions 

 in the State are reported and methods of testing seed-corn are described. The 

 general survey revealetl that in many localities the quantity of seed-corn avail- 

 able was sufliclent for planting the next crop provided the corn showing con- 

 siderable vitality be given the individual ear test to remove the worthless ears. 

 From tests made at the station the cost was found to be from 1.5 to 4.5 cts. 

 for each hundred ears, the difference being due to the method used. The cost of 

 testing by the Rag Doll method was 18 cts. and by the saw-dust box method 

 27 cts. Complete directions for the use of the Rag Doll tester are given. 



During the fall of 1915, 220 lots of seed-corn of 20 ears each were picked on 

 different dates, the first on October 4 and the last or eleventh series of lots on 

 December 13. Two selections were made each week, one of the most mature 

 ears and the other «f immature or soft ears. Each of the 4,400 ears was tested 

 late in February. The results showed that of the mature ears picked at weekly 

 intervals and stored in seed houses with continuous heat 74 per cent gave strong 

 germination ; the same quality picked at the same time but stored in a closed 

 shed with no artificial heat, 35 per cent ; and of those stored in an open shed 

 only 11 per cent gave strong grrmination. The more immature seed corn picked 

 at weol^y intervals and cured and stored in the seed house with artificial heat 

 gave .54 per cent ; those in a closed shed 14 per cent ; and those in an open shed 

 10 per cent. 



Cotton— varieties and limiting factor tests, W. L. Hutchinson (South 

 Carolina Sta. Bui. 185 {1916). pp. 19). — This bulletin reports some results of 

 experiments with cotton conducted in 1913, 1914, and 1915. The results of 

 variety tests are given in tables with brief comments. The rainfall during the 

 growing season is also shown. 



Thirty varieties were tested at the Pee Dee substation in 1914 and 1915, many 

 of the varieties being grown in both years. In 1914, Cook Improved headed 

 the list with a yield of 2,205 lbs. of seed-cotton per acre, 39 per cent of lint, and 

 860 lbs. of lint per acre, the total value of the crop produced being .$130. The 

 range in lint production for the 30 varieties was from 401 to 860 lbs. per acre 

 and the percentage of lint from 30 to 39. In the test of 1915 the variety Pulnott 

 ranked first in yield of lint per acre with 949 lbs., and in total value of crop 

 with .$146.20 per acre. The range in yield of lint per acre for the 30 varieties 

 this year was from .523 to 949 lbs., and the percentage of lint from 29 to 39. 

 Cook Improved this year ranked third in the yield of lint per acre with 889 

 lbs., but ranke<l first in the percentage of lint. 



The main station in 1913 tested 21 varieties in small groups. The varieties 

 showing special merit and their yields of seed-cotton per acre were as follows : 

 Slmpklns Ideal 1,763 lbs., Petway 1,731 lbs., Kitchings 1,664 lbs.. Cook Im- 

 proved 1,526 lbs., and a hybrid between King and Triumph 1,405 lbs. In a test 



