significantly more resistant than the .check varieties. Some of them also 

 appear to resist lodging better than the check varieties. 



These plots were harvested approximately the first week of June, the 

 first week of August, and the middle of September for the three-year period. 

 The average percent stand during 1960 was 63 percent, as determined by 

 three visual estimates during the season. The strains ranged from 50 (Svn 

 A) to 80 percent stand (Saratoga) in the third harvest season. Generally, 

 the checks had somewhat better stands than the synthetics. Clipping height 

 was approximate^ two inches in this test. It is known that height, frequency, 

 and date of cutting, as well as fertility practices, are often critical in main- 

 tenance of bromegrass. There was an indication in this and other similar 

 tests at this location that the management system was not very satisfactory 

 for maintenance of good stands of bromegrass. Studies are in progress to 

 evaluate the effect of the above factors on stand maintenance. 



Part of the results from a test of 65 polycross seed progenies of brome- 

 grass selections, not described under methods, is given in Table 3. This 

 test was seeded in the spring of 1958 in the same field as bromegrass test 

 # 2, and fertilized and harvested similarly. 



The 65 progenies ranged from 4.17 to 5.82 tons per acre. The data show 

 that individual bromegrass selections can be found which will equal or 

 exceed present varieties in yield, and apparently possess significantly higher 

 resistance to brown leafspot. 



Table 3. Forage Yields and Reaetion to Brown Leafspot 

 of Bromegrass Progenies and Check Varieties, 

 Dover. 1959-60. 

 (tons per acre at 12 percent moisture) 



Strain 1959 1960 Average \verage Leafspott 



1575 5.35 5.94 5.65 2.3 



2410 5.23 5.26 5.25 2.4 



4024 5.26 5.27 5.26 2.0 



4181 5.42 5.63 5.53 2.3 



Lincoln 3.82 5.01 1.12 3.6 



Saratoga 5.24 1.51 4.88 4.1 



Manchar 5J5 5/70 5A3 42_ 



Average 5.07 5.33 5.20 3.0 



* Two to three replications of 5 x 10 foot plots. 



t Based on four to six visual ratings per strain during 1959-60. on a scale of 

 1 = no leafspot to 5 = very susceptible. 



ALFALFA 



Material and Methods 



An alfalfa test of Eour varieties was seeded May 29. 1956 on a Worth- 

 ington soil at Colebrook, N. H. Seeding rate was 10 lbs. per acre. Approxi- 

 mately one bushel of oats per acre was seeded as a companion crop. The 



