June 14, 1924 
Western White Pine Seed 
1131 
Figure 4 indicates that the best time in the fall for sowing western white pine 
seed at the Savenae nursery is during the first two weeks in September. Accord¬ 
ing to the curve, the last few days in August may be as good, but this is no^ 
~ 60 
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<0 50 
§ 
l-to 
$ 
'fc 30 
8 
k 
Qjb 
I 
I 
20 
10 
0 
liT 
ii 
■ i i i i 
BASED ON THE RESULTS 
ii 
OF SOWING A TOTAL OF 
77,000 COUNTED SEEDS 
DURING THE YEARS 1916 
TO 1920. 
■sj 1 FIGURES ON THE 
\ GRAPH REPRESENT 
r-- |> 
\ 5 
* U IY| 
ANDS OF 5 
or i nuu 
SEED SOWN 
ir 
13 
d 
10 
20 
3£L 
io 
20 
AUG. 
NOV. 
SEPT. OCT. 
DATES OF SOWING 
Fig. 4.—Germination of western white pine seed at Savenac nursery as influenced by time of sowing in 
the fall 
certain. Trial sowings in August have not been numerous enough to fix the 
direction of the curve at that end. Furthermore, August sowings are subject 
to premature germination; that is, germination during the fall of sowing; and 
seedlings germinating prematurely do not survive the winter. 
