1. The grafting and cutting propagation tests Ulmus pumila cv.

2. Technology of Grafting Ulmus pumila var, pendula Rehd.

3. A North American deciduous tree (Ulmus americana) having double serrate leaves and winged fruits. It is grown chiefly as an ornamental shade tree but often dies from Dutch elm disease.

4. Ulmus pumila open forest ecosystem plays an important role in Otindag Sandy Land.

5. Any of various deciduous trees of the genus Ulmus, characteristically having arching or curving branches and serrate leaves with asymmetrical bases. Elms are widely planted as shade trees.

6. Ulmus pumila L. is a geographical variety of Ulmus pumila growing in Hun-shandake sandy lands and its southern edge of Xilin Gol Prefecture.

7. New species of the genus Ulmus L. from northeastern China.

8. Ulmus pumila of Haixing, Yanshan provenance is more suited to high salinity stress growth, more be adapt to coastal saline areas ecological restoration.

9. Wind tunnel test indicated that the volatiles of Ulmus pumila and Ricinus communis have high efficiency to attract Holotria diomphalia.

10. The grafting and cutting propagation tests of Ulmus pumila cv.

11. Since the 1960's, a lot of elms, Ulmus pumila have been killed in Xing-jiang, Henan, Shanxi, Inner Mongolia and other provinces in China.

12. 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.

13. The temporal and spatial changes of ulmus pumila phenology and the relationship with climate factors in Northeast China from 1980 to 2005 were discussed.

14. The Ulmus pumila had strong adaptive ability to the environment, which could grow well under the poor soil. However, ...

15. Compared with Ulmus pumila, Platycladus orientalis showed stronger adjustability in the semi-arid area of Loess Plateau.

16. Slippery Elm (Ulmus rubra) bark was used both internally and externally by native Americans and early pioneer settlers.

16. try its best to gather and build good sentences.

17. North American deciduous tree (Ulmus americana) having double serrate leaves and winged fruits. It is grown chiefly as an ornamental shade tree but often dies from Dutch elm disease.

18. The discovery of U. elongata showed that Ulmus species extended from Asia, significantly prompting further research into North America and East Asia flora.

19. Japanes elm sawfly is a kind of main phyllophagous insect to Ulmus L.

20. The results of a interrelating analysis on the heredity of 6 characters of 24 Ulmus clones showed that trunk height, D.

21. Materials for the Chinese dendrology: five new species of Ulmus.

22. Spatial patterns of main woody plant populations are aggregative , Ulmus macrocarpa, Acer mono, Ulmus pumila populations in some communities are random.

23. Diversity Indices were applied to analyze the species diversity of sparse Ulmus Pumila L forest pasture, and contiguous grid quadrats were used to test the distribution pattern of arbor population.

24. A Preliminary Study on the Mathematic Model of Leaf Area of Ulmus pumila Linn.

25. Ivela ochropoda is one of the main defoliator pest occurred in Ulmus pumila, and is very serious in Wuqi County.

26. In air of the three cities. pollen grains of artemisia L, cannabis and humulus L. pinus L, ulmus L and populus L were the most frequnt among pollen grains investigated of 54 species.