Browsing Theses, Dissertations and Student Research Papers (School of Forestry, pre - 1984) by Author "Johnson, Le Roy Curtis"

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Effect of light quality and periodicity upon germination of Douglas-fir seed (Pseudotsuga menziesii (Mirb.) Franco) and on growth of Douglas-fir seedlings

Johnson, Le Roy Curtis (1965-01-20)

A study on the effects of light quality and periodicity on the germination of Douglas-fir seed and the growth of Douglas-fir seedlings was conducted. Interest was focused on responses that could be measured and observed ...