oh) 
Table 1 (continued) 
No. of Total 
Acc. Ht (cm) Leaf width Flw. culms Basal width” dry weight 
Species & Origin (2n No.) No. Leaf/Culm (mm) per plant (cm) of top growth 
Pa Pr Pa Pr Pa Pr Pa Pr Pa Pr 
Calamagrostis inexpansa 
Alaska: 
Galbraith (28) 164 18/39 38/36 25 4.5 46 20 | 32/30) 32/2:0, | 35:3 18.5 
Dietrich Valley (42) 160 30/54 44/42 4.0 6.0 68 9 19/40 26/2.00 28.2 17.0 
Glennallen (28) 161 24/53 23/0 3.0 35 98 0. 31/30 2 28/20 49:9 55 
Glennallen (42) 165 27/54 34/0 35 7.0 72 0). 32/15 | 26/20" 44.0 7.0 
Palmer (105) 163 38/57 XX 4.0 XX 61 XX 30/3.5 XX 63.9 XX 
Festuca rubra 
Alaska: 
Franklin Bluffs (42) 166 15/22 15/23 2.5 2.5 2 iL 223/385 8/5.0 19.7 3.5 
Sagwon (42) 168 8/39 12/24 25 Dol 34 5 14/45 7/4.5 17.1 1.0 
McKinley Park (42) 167 15/34 16/27 2.0 2.0 21 28° 27/35 9/5.0 23.4 5.0 
Figure preceding slash (/) is basal width (cm); figure following slash is density estimate of basal growth judged accord- 
ing to 5 classes (1-5, sparse to dense). 
X Dead 
XX 
** 
Seriously injured or unhealthy 
flowering culm production at both sites while 
the octoploid (Copper Center, 146), winter 
injured at Palmer, increased at the Prudhoe site. 
The octoploid boreal entry produced many 
more flowering culms at Prudhoe than the 
tetraploid originating from the same location 
(Copper Center). The arctic octoploids also were 
considerably more productive in flowering culms 
than the arctic tetraploid. However, the alpine 
tetraploid from Caribou Mountain outproduced, 
by a smaller margin than the above instances, 
the octoploid from the same location. 
The two arctic entries from Prudhoe Bay 
and Franklin Bluffs yielded the most top growth 
at both sites (Fig. 9). This was consistent with 
1973 results. The tetraploid boreal entry declin- 
ed significantly in top growth from the previous 
year at both sites. 
Arctagrostis latifolia 
A boreal entry died in the arctic garden 
during the first year. An arctic entry and a 
boreal entry did very poorly in the Palmer 
garden and were omitted from the analysis 
Grazing prevented accurate determination; believed not to have produced any culms. 
there. A boreal entry which recovered from an 
unhealthy start that excluded it from analysis in 
1973 was included in the 1974 analysis. 
The alpine and boreal biotypes grew taller 
(Fig. 10), bore more flowering culms (Fig. 11), 
and produced much more shoot weight (Fig. 12) 
than the surviving arctic biotype in the Palmer 
garden. The boreal entries produced longer 
leaves but fewer flowering culms than the arctic 
entries at Prudhoe. An arctic tetraploid entry 
produced the most flowering culms and top 
growth in the arctic garden. A boreal octoploid 
yielded the most top growth at Palmer. The 
boreal entries from central to southcentral Alas- 
ka grew more densely than the more northern 
entries at Palmer. Shoot weights and numbers of 
flowering culms were much greater at Palmer 
than at Prudhoe for most of the boreal entries. 
The arctic entries increased in number of flower- 
ing culms in both gardens and increased in shoot 
weight in the arctic garden in the third season, 
whereas the boreal entries were variable in this 
regard. Leaf lengths decreased in the third 
season. 
