among all agencies. 



Silvicultural Research 

 Cutting Methods 



1. Studies were continued on the effects of normal operating procedures and 

 modifications to these normal procedures on the regeneration conditions on a 

 variety of forest cover types. The study plots on the limits of the Abitibi Power 

 and Paper Company and the Great Lakes Paper Company were re-examined. 



Encouraging results were obtained towards increasing white spruce re- 

 generation in one of the logging modifications in which the ground around white 

 spruce, left as seed trees, was mechanically scarified. 



2. Active co-operation was rendered the Division of Timber Management in 

 their program of applying, on a trial basis, any recommended modifications in 

 cutting practices. 



Seeding 



1. The search for a simple, efficient seed protector against rodents was con- 

 tinued. A trial including deep hole seeding, seeding in wire cages, seeding 

 under wire mesh, and seeding under inverted waxed cups of three sizes was es- 

 tablished for four conifer species. Preliminary results, after one growing 

 season, for the cup procedure show promise but additional study is necessary. 



2, In co-operation with the Marathon Corporation, a large scale practical 

 testing of the Brohm Hand Seeder was established. Manual scalping and seeding 

 with naked jack pine at five feet and less spacing, a crew of nine men averaged 

 1.8 acres per man day on a 75 acre cut-over area. Survival counts at the end 

 of the first growing season indicated an average stocking of 46 percent over the 

 whole area. In view of the extremely dry, hot year, these results are quite 

 promising. 



Planting 



Studies of root pruning, root induction and planting times were continued 

 this year. Examinations were made on the trials established in 1953 and 1954 



11 



