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Official Journal of the Japan Wood Research Society

Fig. 1 | Journal of Wood Science

Fig. 1

From: Seasonal variations of auxin and gibberellin A4 levels in cambial-region tissues of three conifers (Pinus elliottii, Chamaecyparis obtusa, and Cryptomeria japonica) with inherently different wood densities

Fig. 1

Cross-sections of sample trees and position of each sampling date. Arrowheads show the position of each sampling date in the annual ring. The number of tracheids formed was examined in each test period (I–V). Bars show a length of 200 μm. A sugi, B hinoki, C slash pine

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