Article Figures & Data
Figures
- Figure 1.
Pattern of water ascent through a glass capillary tube over time, f = Initial front of water molecules at time zero.
- Figures 2 and 3.
Cross section of diffuse-porous (2) and of ring-porous (3) wood as seen under the light microscope. Conducting elements are much wider in ring-porous trees, but there are far fewer of them. When one fails due to injury, water shortage, or freezing, the effects are far more devastating in ring-porous trees than in diffuse-porous ones. (Modified from Raven et. al. 1981. Biology of Plants)
- Figures 4 and 5.
Schematic views of “T"-shaped Injectors seated In a trunk cross section during Injection. 4. Most commonly used Injectors block the outermost (1-yr) ring and deliver fluid to 3- and 4-year old wood (at the tip of the Injection hole). 5. Shallow-pit Injectors target highly conductive 1-year old wood.
- Figure 6.
Thiabendazole hypophosphite (2-(4-thiazolyl)-benzlmidazole hypophosphite), the fungltoxic component of Arbotect 20-S. Hypophosphite Is Ionically bonded as a counter ion to TBZ, greatly Increasing solubility. In the tree, TBZ-P probably dissociates Into insoluble TBZ which persists.
- Figure 7.
Tandem plots of TBZ provided by the Hewlett-Packard 5988 gas chromatograph/mass spectrometer. Lower plot Indicates retention time of just over 5 min in the gas chromatograph. Upper plot shows the relative abundance of TBZ ionization products generated by the mass spectrometer (from the TBZ parent molecule represented by peak in lower plot). Sample was of 1 ppm TBZ in EtAC.
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