28 EXPERIMENT STATION BULLETIN 354 



Grimm, a reliable variety for the Northeast, dropped from first place in 

 1942 to fourth position in 1943 with a yield of only 2.72 tons. The result- 

 ing yields in tons per acre follow in descending order : 



1. A-145 New Jersey 2.98 



2. Dakota Common 2.82 



3. A-69 Michigan 2.81 



4. Grimm 2.72 



5. A-67 New Jersey 2.67 



6. A-68 Michigan 2.62 



In May, 1944, these plots w^ere plowed up since very few plants sur- 

 vived the severe winterkilling. "Atlantic" showed a range of 5 to 30 per 

 cent survival in the five replications while Grimm's survival range was 

 from nearly zero in four plots to about 20 per cent in the fifth. The es- 

 timated percentage "of surviving plants follows in descending order : 



1. A-145 New Jersey 12 per cent 



2. A-68 Michigan 9 per cent 



3. A-69 Michigan 7 per cent 



4. A-67 New Jersey 6 per cent 



5. Dakota Common  6 per cent 



6. Grimm 5 per cent 



Since "Atlantic" shows some promise as an alfalfa variety it should 

 be given further trials. 



L. J. HiGGINS 



Oat Variety Trials 



Twenty-five varieties of oats were planted in the Agronomy Plots at 

 Durliam, New Hampshire, on May 13, 1943. These plantings were rod 

 rows and were in three randomized replications. The seed was furnished 

 by the United States Department of Agriculture and included several new 

 disease-resistant varieties. Four standard varieties were used as checks. 



Each row was harvested and weighed for forage yield after the bun- 

 dles were field-dried. The heads were cut off, bagged, and then threshed by 

 hand to determine given yield per acre. Varieties such as the Vicland, 

 Vanguard, and Ajax, which show some resistance to the prevailing oat 

 diseases in southeastern New Hampshire, gave excellent yields. Some of 

 the old standard varieties did very poorly. 



The summarized results of these oat trials appear in Station Circular 

 No. 67, "Small Grain and Corn Variety Tests," published in Februarv, 

 1944. 



These trials are being continued in 1944 on a larger scale and with 

 additional varieties. 



L. J. HiGGINS 



FORESTRY 



Propagation of Sugar Maples 



Several hundred cuttings of current season's growth were collected 

 from trees known to possess a high sugar concentration. These were se- 



