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Effect of Phosfon-D on Potted Douglas-Fir

A chemical growth retardent probably would be valuable in the forest nursery for two reasons. It would control the size of fast-growing hardwoods and limit hardwood and coniferous seedlings to a handling size when a change in plans necessitates the prolonged retention of seedlings in the nursery. Phosfon-D1 has been used successfully for several years to shorten stems on herbaceous plants such as chrysanthemums.


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Author(s): J. G. Wheat

Publication: Tree Planters' Notes - Issue 70 (1965)