NOTES ON WHITE-PINE FOUR-YEAR TRANSPLANTS 



By S. N. Spring 

 Professor of Silviculture, Cornell University 



In 1913 three white-pine seedbeds (size, 4 feet by 12 feet) were 

 sown broadcast with different quantities of seed. They received scant 

 watering and minimum amount of care during the first and second 

 years. The record at the end of that time was as follows : 



Table i. — White Pine Seedbeds 



Amount of seed Average stand per 

 No. of bed sown square foot 



{ounces) {trees) 



I 12 180 



2 10 110 



3 8 90 



Trees from each bed, respectively, were transplanted into rows 12 

 inches apart, with the trees spaced i^ inches apart in the row. They 

 received practically no artificial watering excepting during one short 

 dry period and remained two years before removal. 



The average height growth and percentage of mortality (based on 

 100 trees from each bed, which were in each case a part of a row ap- 

 pearing to be average) is as follows: 



Table 2. — Height and Percentage of Mortality of White-pine Transplants (2-2) 



No. of bed Average total height Mortality 



(inches) (per cent) 



I 9-9 6 



2 9-43 4 



3 8.64 4 



The number of trees in each inch class is interesting in relation to 

 original density of the respective seedbeds. More exact experimenting 

 is needed, these results being incidental to nursery practice ; but the 

 figures are at least suggestive. Tabulated, they are as follows : 



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