White Cedar 



The production of improved types of this species and of western red cedar 

 {Thuja plicata) and hybrids, hardy in southern Ontario, is the aim of this project. 

 This project was started by the Research Branch in 1956. 



A provenance test plantation, consisting of 15 provenances of white cedar 

 was established in the Ganaraska Forest. 



Two observation areas of western red cedar were also established in the 

 Ganaraska Forest, in addition to one small observation area of white cedar. 



A number of rooted cuttings and hybrid seedlings were set out on their 

 permanent location at the Southern Research Station, to serve as future breeding 

 materials. 



Chestnut 



The aim of this project is the production of hardy dwarf chestnut (Castanea) 

 types, resistant to blight and suitable as dwarfing stock in a breeding program 

 with timber-type chestnuts. This project was started by the Research Branch in 

 1955. 



No new work was undertaken on this project. The seedlings of Chinese 

 chestnut were moved from the nursery to various places at the Southern Research 

 Station, for further observation and breeding when they reach flowering age. 



White Pine Blister Rust Reconnaissance Surveys 



The purpose of the program is to determine blister rust conditions in the 

 white pine forests of the province. This is accomplished by investigating and 

 reporting on all aspects of white pine blister rust in Ontario and advising on 

 pertinent matters. Reconnaissance and damage surveys are conducted. At the 

 request of the Districts assistance is given in planning and operation of blister 

 rust control. Collaboration with the Federal Laboratory of Forest Pathology is 

 extended as required. 



Work Performed 1961-62 



Instructional and practise session in blister rust reconnaissance for Federal 

 and Provincial personnel was conducted at Green Lake and Dacre. Fifteen at- 

 tendants participated. 



Rust conditions and protection needs in Dacre Chief Ranger District were 

 surveyed and recommendations made. 



As part of the regular blister rust reconnaissance program, field examina- 

 tions were made in Parry Sound and Pembroke Districts, and at one station in 

 Swastika. 



In view of expanding planting programs in northern Ontario, surveys and 

 studies of rust conditions and potential in Gogama and Swastika Districts were 

 advanced. 



Ribes conditions were investigated on Mississagi and White River planting 

 project areas. 



Reports 



Forestry research reports are listed in appendix on page 280. 



Mensuration and Statistics 



The primary work of the Mensuration and Statistics section is consultation 

 regarding the proper statistical design of experiments and the mathematical anal- 

 ysis of the data secured. The purpose of the analyses is to determine how con- 

 clusive the results are and to avoid the drawing of unwarranted inferences. 



277 



