636 EXPERIMENT STATION RECORD. [Vol.43 



one row of beans and two rows of corn. Where A'elvet beans were plante<l in 

 the row with the hills of corn four feet apart each way and one-half the corn* 

 was tied similarly to tying for fodder cutting, no difference in yields of corn 

 and beans was noted. The increase of yield of velvet beans obtained by sub- 

 stituting castor beans for corn was not enough to overcome the yield of both 

 com and beans and did not justify the extra expense of eliminating the castor 

 bean stalks. 



In variety tests at the Sugar Experiment Station, L-511 equaled the produc- 

 tion of the older canes and possessed a sugar content of juice of 14.25 as com- 

 pared with about 11.5 for D-74 and Purple. L-511 seemed to suffer less from 

 the mosaic disease than older varieties in the State. 



Alexander Mexican .June, Surcropper, and Ferguson Yellow Dent with respec- 

 tive yields of 28.2, 28.2, and 25.5 bu. per acre were first in corn variety tests at 

 Calhoun. In percentage of grain, the leading varieties were Calhoun lied Cob 

 (North Louisiana Substation) with 88.22, Hastings Prolific with 86.11, and Cal- 

 houn Red Cob (Supple) with 86.05. 



The highest yielding cotton varieties were Trice, with 441 lbs. of seed cotton 

 per acre, and Wanamaker-Cleveland and Cleveland with 399 lbs. each. The 

 lint percentages were 27.5, 35, and 31.75, respectively. 



Experiments were also conducted with cowpeas, forage crops, and potatoes. 

 Of 15 cowpea varieties, Red Ripper and New Revenue were the heaviest pro- 

 ducers, yielding 11.5 and 11.37 bu. per acre, respectively. Japanese Honey 

 sorghum was first in the 1919 forage crop tests with a yield of 16.73 tons of 

 green material per acre, followed by Texas Seeded Ribbon cane with 15.47 tons, 

 and Sumac with 13.2 tons. 



In potato tests, northern grown Triumph seed from different sources produced 

 yields ranging from 5.8 to 63.5 per cent in excess of the Louisiana grown seed. 



[Report of field crops work at the Duluth Substation, 1918-19], M. J. 

 Thompson {Minnesota Sta., Rpt. Duluth Substa., 1918-19, pp. 6-13, figs. 3). — 

 This reports the progress of experiments conducted during 1918 and 1919. The 

 portion dealing with work in 1918 has been previou.sly noted (E, S. R., 42, p. 825). 



In 1919 tests of wheat varieties, Mindum, Kubauka, and Marquis gave aver- 

 age yields of 26.73, 20.37, and 18.79 bu. per acre, respectively. Iowa 60-day, 

 with a yield of 54.31 bu. per acre, Victory with 50.11 bu., and Swedish Select 

 with 48.83 bu. were first in oat variety tests. Svansota, with an average yield 

 of 53.76 bu. per acre, was first among the barley varieties tested ; Lion Man- 

 churia second with 49.94 bu. ; and Imp, Manchuria third with 47.07 bu. Spring 

 rye averaged 32 bu. per acre. Of three bean varieties tested Snowflake yielded 

 highest, producing 33.2 bu. per acre. 



Yields in the roughage plats were poorer than that of grass in other fields. 

 The most productive of the varieties grown for hay were Golden millet with 

 8,111 lbs. per acre, Hungarian millet with 5,486 lbs., Siberian millet with 5.293 

 lbs., and alsike clover with 5,228 lbs. Of the crops tested for silage production, 

 sunflowers and sorghum were first with acre yields of 36,666 lbs. and 31,153 lbs.," 

 respectively. 



Observations on new place effect experiments wath potatoes indicated that 

 first season seed from native stocks produced larger yields than seed from regions 

 farther south, but the second year seed, removed by one season from southern 

 Minnesota, showed a relative increase in yield and uniformity of type, appar- 

 ently adjusting itself to the new conditions. Burbank potatoes were first in 

 the variety tests with a 2-year average yield of 300 bu. per acre, followed by 

 Green Mountain and Russet, yielding, respectively, 283 and 262 bu. 



