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Home → Publications → Tree Planters' Notes → Tree Planters' Notes Issue 72 (1965) → Effect of Method and Destiny of Sowing on Douglas-Fir Seedlings

Effect of Method and Destiny of Sowing on Douglas-Fir Seedlings

Density in nursery beds has an important effect on the quantity, size, and uniformity of planting stock, and on the proportion of seedlings that fail to meet planting specifications. While it is a primary objective to produce the maximum number of plantable seedlings per square foot, the cost of their production and the efficient use of seed must be considered carefully in formulating nursery practices. To study the effect of broadcast and drill sowing at various densities on the yield and morphology of 2 + 0 Douglas-fir seedlings, Mr. R. van den Driessche established a designed experiment at Duncan and Campbell River nurseries in the spring of 1961. Sowing rates were varied to obtain approximate densities of 10, 30, 50, 70, and 90 seedlings per square foot at the end of the first growing season (actual densities of 11, 30, 50, 62, and 84 seedlings per square foot were counted in sample plots).


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Author(s): John Revel

Publication: Tree Planters' Notes - Issue 72 (1965)