Fall is time for trees to drop their seeds, whether they are large and visible seeds like acorns or tiny like Douglas fir seeds, which weigh 1/23000th of a pound. Trees do not bear seeds until they ...
A study of the survival of naturally disseminated tree seed was made in a clearcut area on the H. J. Andrews Experimental Forest in the Cascade Range of western Oregon during 1955-60. From start of ...
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