Notes and Observation: Height Growth of Seedling Green Ash
Five size grades of 2-year seedling green ash (Fraxinus pennsylvanica var. subintegerrima [Vahl.] Fern) were field-grown for eight years at Cheyenne, Wyo., to determine whether superior trees could be selected in the seedling stage. Height growth was taken as the measure of tree performance. No significant differences in height-growth among grades were found. Significant differences in height-growth were found for the interaction of grades within years. During the seventh and eighth years after planting, the three smaller seedling grades became significantly taller than the two larger seedling grades. Superior trees could only be located by individual tree measurements.
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Document Type: Miscellaneous
Affiliations: Research Horticulturist, Crops Research Division, Agricultural Research Service, U. S. Dept. Agric., Cheyenne, Wyo.
Publication date: 1966-08-01
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