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Home → Publications → Tree Planters' Notes → Tree Planters' Notes Volume 23, Number 3 (1972) → Giberellic, Citric Acids and Stratification Enhance White Ash Germination

Giberellic, Citric Acids and Stratification Enhance White Ash Germination

White ash (Fraxinus americana) exhibits seed dormancy that can be broken by stratification. However, we have found some seedlots of apparently sound seed that would not germinate satisfactorily (less than 1-3 percent germination) even after 90 days stratification. This seed remained sound (cutting tests showed full seed with no appearance of decay) and continued to germinate sporadically all summer. One flat of seeds from a completed germination test which had been left in a cold greenhouse bay over winter produced numerous seedlings the following spring. Similar delayed germination of white ash has been noted in the field (Leak, 1963).


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Author(s): Joe R. McBride, Richard E. Dickson

Publication: Tree Planters' Notes - Volume 23, Number 3 (1972)

Volume: 23

Number: 3