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  • Author or Editor: David E. Bee x
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Abstract

Soil drench of succininc acid-2, 2-dimethylhydrazide (daminozide) on Taxus × media Rehd. cv. Densiformis in the growth chamber inhibited growth of young roots but had little effect on cold acclimation. Daminozide soil drenches at 1000-4000 ppm retarded root growth but did not predispose roots to greater cold hardiness after subsequent cold acclimation conditions. Daminozide applied during cold acclimation did not increase root cold hardiness.

Open Access

Abstract

The electrolytic, visual, and electrical impedance methods for estimating freezing injury were highly associated. The electrolytic method was more closely associated with the visual method and better separated the effects of freezing temperatures than did the electrical impedance method. The electrical impedance method yielded results in the shortest time. The electrical impedance and visual methods evaluated freezing injury to woody internodal stem sections without the need for unfrozen controls.

Open Access