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Home → Publications → National Nursery Proceedings → 1977 → Detection of Dormancy in Black Walnut Seedlings With the Shigometer and An Oscilloscope Technique

Detection of Dormancy in Black Walnut Seedlings With the Shigometer and An Oscilloscope Technique

The oscilloscope technique will work for black walnut seedlings, but the instruments must be carefully calibrated and considerable experience is needed. There are many variables in this technique which contribute to instrumental and personal errors. The Shigometer is simple, relatively inexpensive, and easy to operate. Shigometer pulse resistance readings are strongly correlated with degree of physiological activity in seedlings and seasonal periodicity of activity.


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Author(s): Robert D. Williams, W. J. Rietveld

Event: Proceedings of Meetings Intermountain Nurserymen's Association
1977 - Manhattan, Kansas