Steinhoff, R. J. 



1979. Variation in early growth of western white pine in north Idaho. 

 USDA For. Serv. Res. Pap. INT-222, 22 p. Intermt. For. and 

 Range Exp. Stn. , Ogden, Utah 84401. 



In several nursery and field tests most of the useable variation among 

 western white pine seedlings or saplings was related to differences among 

 the parent trees within stands. When differences among geographic areas, 

 elevational zones, or stands within those categories were significant us- 

 ually no pattern to the variation was apparent. However, seedlings from 

 high elevation parents (generally 1, 375 m or higher) were often shorter than 

 those from lower elevations. 



KEYWORDS: geographic variation, elevational variation, Pinus monticola, 



seed zones 



Steinhoff, R. J. 



1979. Variation in early growth of western white pine in north Idaho. 

 USDA For. Serv. Res. Pap. INT-222, 22 p. Intermt. For. and 

 Range Exp, Stn. , Ogden, Utah 84401. 



In several nursery and field tests most of the useable variation among 

 western white pine seedlings or saplings was related to differences among 

 the parent trees within stands. When differences among geographic areas, 

 elevational zones, or stands within those categories were significant us- 

 ually no pattern to the variation was apparent. However, seedlings from 

 high elevation parents (generally 1,375 m or higher) were often shorter than 

 those from lower elevations. 



KEYWORDS: geographic variation, elevational variation, Pinus monticola , 

 seed zones 



■ir U.S. GOVERNMENT PRINTING OFFICE: 1979-677-019/92 REG. 8 



