34 EXPERIMENT STATION RECORD. [Vol.43 



Cniiii lilt' P.liu' P.t'll pea. A peamil culture test indicated that the rows should 

 be as close as easy cultivation will allow. Peanuts plantetl with the pod.': 

 cracked produced a slightly better stand tlian nuts planted with whole shells. 

 In 1917 a 3-acre field at the station yielded 1,140 lbs. of hay and 18 bu. of nuts 



I)er acre. 



Crop introduction tests were carried on with Sudan grass, sorghum, TefC 

 grass, Russian flax, guandu or pigeon-pea, sasame, and Amostra dehervUlas, a 

 native of Brazil. Sudan grass gave the best yields when seeded in drills at the 

 rate of 25 lbs. per acre. Russian flax seeded February 1, February 1.5, and 

 March 7 yielded 274..5, 275, and 357.5 lbs. of seed per acre, respectively. 



Of seven varieties of potatoes tested in 1916 Early Rose led with a yield of 

 123 bu. per acre, being followed by Dreer Early Standard and Bovee with 

 115.5 bu. In 1917, of the two vai'ieties grown, Irish Cobbler yielded 86 bu. and 

 Bliss Triumph 66 bu. per acre. 



Variety tests of small grains, F. W. Taylor (Neiv Hampshire Sta. Bui. 

 192 {1919), p. i3).— Results of tests made in 1918 of 8 varieties of spring wheat, 

 4 of barley, and 13 of oats are briefly reported. The leading varieties and 

 their yields were as follows: Marquis spring wheat 22.1 bu., Vermont Cham- 

 pion barley, a two-rowed variety, 49.5 bu., and Swedish Select oats 86 bu. per 

 acre. The average yield of wheat was 18 bu. and of barley 46.5 bu. 



Disease-free sweet-corn seed, G. N. Hoffer {Indiana Sta. Bui. 233 {1920), 

 pp. 3-12. figs. 8).— Experiments previously noted (E. S. R., 40, p. 526) were 

 continued in 1919 with a number of varieties and strains of sweet corn, the 

 work being carried on in cooperation with the U. S. Department of Agriculture. 

 Seetl ears giving 100 per cent germination, but showing infection by certain 

 harmful organisms, were compared with ears showing no infection, and the 

 results repeatedly gave from- 10 to 30 per cent increase in yield in favor of the 

 ears apparently free of disease. The results of field observations indicated that 

 planting too thickly in the hill or the drill either pretlisposes the plants to 

 disease infection or otherwise interferes with their development, often making 

 them stunted and barren. 



In 1919 seed fron* apparently disease-free stalks, selected the preceding fall in 

 Connecticut and compared at Bloomington, 111., with seed from a bulk purchase 

 from the same locality, resulted in an increase of about 23 per cent of cut corn 

 in favor of the selected seed. Different grades of seed, selected on the basis of 

 the physical appearance of the ears as indicating freedom from disease or the 

 presence of infection, were compared at Hoopeston, 111., with the result that 

 differences in yield of from 0.1 to 1.5 tons per acre by the grades in each seed 

 lot were obtained. The selection of the seed for this work was based on the 

 absence of discoloration in the kernels and the cobs as indicating soundness 

 and on deep yellow coloration of the butts of ears and of kernel tips and 

 decay in the cobs as showing diseased condition. 



Brief discussions are presented on sweet-corn canning problems, symptoms of 

 root rots, imiwrtance of using the proper kind of seed corn, and control 

 measures to avoid losses from root rots and other diseases. 



[Experiments with varieties of oats], A. Akerman {Sveriges Utsddesfor. 

 Tidskr.. 29 {1919), No. 5-6, pp. 22^-226) .—Three years' results with a number 

 of varieties of oats, including several cross-bred sorts, are reported. The 

 heaviest yield of grain, 3,563 kg. per hectare (99.5 bu. per acre) was secured 

 from 01171 b, a cross between the Victory and Niisgard varieties. This yield 

 was closely followed by 01180 b, a cross between Victory and Crown oats, with 

 3,530 kg., and by Crown with 3,510 kg. of grain per hectare. 



Eftect of temperature on the keeping quality of potatoes, O. R. Butler 

 {Neic Hampshire Sta. Bui. 192 {1919), pp. 19, 20).— In an. experiment conducted 



