1. In the plant organs, the stomatic distribution characteristics of leaf epidermis may be taken as an evidence of plant classification.

2. The tobacco leaves ability to keeping water and stomatic regulation can be improved, reduced transpiration rate and increased transpiration efficiency by supplied potassium.

3. With computer, we compared the stomatic distribution of different organs, parts and whole from the three plants.

4. The resistance of stomatic diffusion, evapotranspiration rate and daily progress of water potential in leaves of the four kinds of crops were determined at the same time in their heading stages.

5. Water stress decreased the chlorophyll contents, stomatic density, and stomatic size of ginger leaves, and reduced the root activity and magnitude of bleeding sap of ginger roots.

6. It is incorrect that only stoma density and stomatic chamber size are used as xerophilous indexes.

7. Conclusion: The method was simple, rapid and accurate, and can be used for the quality control of stomatic ulcer paste.

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8. Weld cannot have empty solder, leakage solder, solder to wear, head of welding wire of stomatic , remain, burr, need polish fruity: Ying Guangjie of tube wall surface is flowing, feel is fluent.

9. Objective: To establish a HPLC method for the determination of chlortetracycline hydrochloride in stomatic ulcer paste.

10. The short-term response of Cryptocarya chinensis to enriched CO2 concentration could evidently increased the photosynthesis, however, the stomatic conductance and transpiration would be inhibited.

11. The best regression models (e. g. Ulmus pumila) of leaf content against air SO2 and leaf stomatic resistance could explain that the sulfur acted as pollutant entered plant mainly through stoma.

12. Leaves form is falcate , and darkly greenish with two parallelly stomatic bands in the hypodermis.