USDA Forest Service 

 Research Paper INT -216 

 February 1979 



A SEARCH FOR PHYTOTOXIIMS INFLUENCING 

 GERMINATION AND EARLY GROWTH OF 

 PONDEROSA PINE 



Rick G. Kelsey 

 Michael G. Harrington 



INTERMOUNTAIN FOREST AND RANGE EXPERIMENT STATION 



Forest Service 

 U.S. Department of Agriculture 

 Ogden, Utah 84401 



