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INT-RP-58: Effects of thinning and fertilizing on production of western white pine seed


Barnes, Burton V. 1969. Effects of thinning and fertilizing on production of western white pine seed. Res. Pap. INT-RP-58. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Research Station. 14 p.

In a 40-year-old western white pine plantation developed as a seed production area, heavy thinning and application of fertilizer in the fall significantly increased strobilus production the following spring. Applying fertilizer increased seed weight and cone lenbrth significantly, but thinning did not. Insects severely damaged the cone crop in the thinned stand. This study indicates that abundant seed crops, relatively free from insect damage, may be produced without expensive thinning and area preparation operations.

Keywords: western white pine, seed production, thinning, fertilizing


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Title: INT-RP-58: Effects of thinning and fertilizing on production of western white pine seed
Publish Date: March 23, 2010
Last Update:
March 23, 2010

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