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xylem造句
1. Once in the xylem, the salts are carried passively in the transpiration stream to the upper parts of the plant. 2. The xylem of ferns and conifers contains only tracheids. 3. Bring 10 Glittering Dust to Archmage Xylem. 4. Lignified tissues include SCLERENCHYMA and XYLEM. 5. The xylem of ferns only contains tracheids. 6. Large proportion of xylem benefit to the water transfer. 7. Protoxylem The PRIMARY XYLEM elements that are formed from the procambium first. 8. Kraft pulping and APMP pulping of the xylem of hybridized citron tree were investigated. 9. The secondary xylem of viscum coloratum, namely, the wood, is reported in the paper. 10. Between primary xylem and primary phloem there are 2—3 layers of parenchymatous cells, regularly or irregularly arranged, but no cambial zone can be recognized. 11. Sapwood contains xylem vessels, but not as strong as heartwood. 12. The vessel elements of secondary xylem in Tectona grandis are observed and studied by cell image analysis system and micrography. 13. The study on the stem secondary xylem of Symplocos paniculata , reveals the wooddiffuse - porous wood. 14. The bending, tensile and compressive experiments of ramie xylem of the variety "Huazhu-4" were conducted by using an universal testing machine "RGT-10". 15. The bine is comprised by cerebral cortex, xylem and fungous marrow. 16. In vascular plants, the xylem and phloem serve to translocate such substances. 17. More water is furnished by the root cells to the xylem. 18. Heartwood(duramen) The hard central region of a tree trunk made up of xylem vessels that are no longer involved in water transport. 19. Results: The microscopical characteristics such phellem, cortex, phloem and xylem were observed in the transverse section of the stem. 20. The characteristics of the size of pith, the ratio of pith and the ratio of tegument vs. xylem have drastic variation among the three hybrid combinations of Dongzao seedlings. 21. Results The secondary structure of the roots of Taxus chinensis var. mairei consisted of the periderm and vascular cylinder(stele). Axial and radial systems formed the secondary xylem of the roots. 22. Results:The circular belt of sclereids in the phelloderm, secondary xylem vessel order of the transverse section, and tetrarch of the primary xylem were microscopic characters. 23. The content of psoralen in the cortex was higher than that in the xylem. 24. The results showed that there were differences in the structure of leaves, caulicle andsecondary xylem of L. obtusifolium Sieb. et Zucc. lived in shade and sun environment. 25. The distribution of the zone conducting the sap flow on xylem cross-section of the stem has been analyzed in this article for Vitis vinifera. 26. The primary cambium is found in the stem and root between the phloem and xylem cells, and by division gives rise to the secondary phloem and xylem in woody dicotyledonous plants. 27. The anatomical structure of Tussilago farfara L. vegetative organs showed that its structure of root is a typical structure of dicotyledonea. Its primary xylem is quadriarch ones. 28. The results showed that all the cross branch roots of different sizes consisted of periderm, secondary vascular tissue and tetrarch primary xylem. 29. While cultivated Radix Saposhnikovia had phloem transverse section of root with oil tube lining up 10-11 rings and xylem vessel with distinct annual ring. 30. Vascular cambium The ring of CAMBIUM formed by the activity of the interfascicular cambium and the intrafascicular cambium that gives rise to secondary xylem and secondary phloem.