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Home → Publications → Tree Improvement and Genetics → Northeastern Forest Tree Improvement Conference → 14th Northeastern Forest Tree Improvement Conference (1966) → A Note on the Effect of Root Pruning and Ammonium Nitrate on Flowering in Young Jack Pine

A Note on the Effect of Root Pruning and Ammonium Nitrate on Flowering in Young Jack Pine

In an earlier paper I reported on the effect of ammonium nitrate on flowering red pine (Pinus resinosa Ait.) and on the importance of proper timing of flower promoting or retarding treatments. ³ This present study concerns the effect of root pruning and fertilization with varying levels of ammonium nitrate, and their interactions with time, on floral stimulation in 4-foot-high plantation grown jack pine (Pinus banksiana Lamb.).


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Author(s): Mark J. Holst

Publication: Tree Improvement and Genetics - Northeastern Forest Tree Improvement Conference - 1966