1980-07-11_REVISION - M1977493 (8)

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4 . Timothy has been an old standby for seeding in the subal- pine . However, it will not set viable seed in the upper subalpine so it is just a matter of time before it goes out. It has a small rounded seed which can catch and establish in small cracks where larger or fluffy seed cannot. 5. Polar brome is a cross developed in Alaska of a native brome and smooth brome. The stand establishment in both the 1969 and 1971 seedings was thinner than for smooth brome, how- ever , after 6-8 growing seasons , the ratings are comparable . Polar brome tends to be more bunchy than Manchar. 6 . Red fescue , 7. Kentucky bluegrass, and 8 . Redtop have all shown up well in the 1971 plantings . Many selections of red fescue are commercially available and some are being tested by Robin Cuany. The performance of mountain brome was satisfactory, however, it was expected to be a relatively short-lived species . Slender wheatgrass which rated good the first few growing seasons has nearly all died . The Durar variety of hard fescue has only shown up as fair in these studies; it had considerable winter kill the first few growing seasons . The vigor of individual surviving plants has been fair to good. Intermediate and pubescent wheatgrasses have proven to be less adapted to the upper subalpine than a number of other readily available species. There was considerable difference in persistence and growth between the selection of western wheatgrass seeded in 1969 as compared to the one seeded in 1971 . Neither seed source can be recommended for high-altitude revegetation, however, the differences in performance between the seed sources indicate that selections made from native high-altitude stands may have good potential in revegetation programs. Canada bluegrass was slow to establish and has suf- fered considerable winter kill the past two seasons. 9-4