22 
BULLETIN 14 
U. S. DEPARTMENT OF AGRICULTURE 
j)ine-oak stands have 70 per cent to 80 per cent of the trees living. 
or more than either the 2-0 or 2-2 plantings, in contrast to the Nor- 
way pine on better sandy soils, where the average percentages for 
these three classes are only 35, 45. and 46 per cent, respectively. 
Where white spruce was planted on the Chippewa National Forest, 
2-1 stock which had been in the field one to five years had 50 to 88 
per cent of the trees living. Thirteen acres planted with 3-0 seed- 
lings had 93 per cent living at the end of the second year. One 
plantation of 2—0 seedlings had 69 per cent survival after five years, 
and another younger one. 90 per cent. 
In experiments with planting stock of different classes at the Clo- 
quet station (41) 2-2 stock of northern white and Xorway pine had 
higher percentages of the trees alive than other classes. (Table 4.) 
The growth of the 2-2 stock was also greatest, and the superiority 
in both growth and survival was maintained for the first 10 years 
after planting. This transplant stock (2-2) of northern white and 
Xorway pine gave better results when planted (1) under stands of 
jack pine of different sizes and densities, (2) on cut-over barren 
sites, (3) where sweet fern formed the predominating cover, and 
(4) in the thick brush. In another series of experiments (29). ob- 
served five years after planting, the survival of transplants was 
slightly better than that of seedlings and the growth markedly 
greater. 
The results of experimental and large scale plantings summarized 
in Table 4 indicate that the transplant stock, and especially the 2-2 
stock, has larger percentages of trees living but that the differences 
are small. 
Table 4. — Survival of different classes of Xorway and northern white pine stool;, 
on various plantations, in percentage 1 of living trees 
Xorway pine 
Northern white 
pine 
Classes of stock 
Mich- 
igan 
Min- 
nesota 
Min- 
nesota 
Min- 
nesota 2 
C1 °™ nesota 2 
Cloquet 
1—0 
70 
85 
89 
1 
2—0. 
52 
42 
48 
63 66 
71 
1—1 
3—0 
48 
60 
36 
37 
40 
50 
73 69 
62 75 
68 
2—1 
99 
81 
1—2 
2—2 .. 
S7 
S3 
i Plantings were made on the Michigan and Minnesota National Fores ts and at the Cloquet (Minn.) 
Forest Experiment Station on small experimental areas, except as noted. The classes for which no per- 
centage appears were not included. Survival counts were made three to five years after planting. 
2 Plantations of 130 to 400 acres. 
Usually the transplant stock of Xorway or northern white pine 
shows a slight superiority in growth and survival. The differences 
in these two respects, however, are not sufficient to cause a planta- 
tion of 2-0 or 3-0 seedling stock to fail where one of 2-1 or 2-2 
transplants would succeed. The small advantages in increased 
growth and survival are counterbalanced by the greater cost of 
raising or purchasing and planting the transplant stock. As a result 
of experience on the Michigan and Minnesota Xational Forests, the 
