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1. The electrophoretic analysis of Populus by isoperoxidases.

2. Oxygen delignification of populus kraft pulp is studied.

3. With the collected data from Populus tremula var. davidiana, Pinus yunnanensis and Cunninghamia lanceolata even-aged pure stands, the new model was verified and compared with other models.

4. Desert riparian forest dominated by Populus euphratica in Tarim River Basin is one of its centralized distribution areas at home and abroad.

5. A quantitative study on flower taxonomic characters of Populus tomentosa.

6. Few trees get around as much as the aspen (Populus tremuloides), that delicate, white-barked, easily recognizable cousin of the willow and cottonwood.

7. Days of the original desert song Populus place A good place!

8. Disease resistance of the seedlings of 59 introduced Populus nigra clones seedlings infected with Marssonina brunnea and Alternaria tenuis were investigated by applying statistical analysis.

9. Populus deltoides is completely adapted to the climatic conditions in Jingning, with the characteristics of cold tolerance and rapid growth.

10. The genus Populus includes about 30 species that grow across a wide climatic range from the subtropics in Florida to sub-alpine areas in Alaska, northern Canada and Europe.

11. The smooth white trunk of Populus tremuloides, or "Quaking Aspen, " hides a secret.

12. In the early Quaternary, medium, Populus gradually evolved into the most important building in desert riparian forest species.

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13. Populus poll this month showed that voters favour Labour on welfare reform.

14. In this paper, the 26 one-year-old Populus deltoides clones in the seedling stage samples trait variation of the anti- Tetra lobulifera (Keifer).

15. The sensitizing pollens were mainly from Artemisia, humulus, populus and pinaceae.

16. Poplar ( Populus deltoides ) veneers were used to make plywood for concrete forms.

17. It is analyzed that chemical composing of triploid populusand triploid populus tomentosa carr . trunk andpopulus branch.

18. Based on the characteristic of Populus Trichocarpa CV. "Southern"planted in Dengting Hu area, a plywood manufacture technology was worked out, optimized and tested.

19. The effect of grafting methods, time of un-tie and the rootstock of different poplar varieties on nursery grafting of Chinese Hongye Poplar(Populus deltoides cv.

20. He belongs to the family Salicaceae and is formally known as Populus alba.

21. Art base paper blended with P - RC APMP of the triploid of Populus thomentosa was investigated.

22. Main tree species are pine, northern larch, oriental arborvitae, tree, Populus, etc. more than 40 kinds.

23. There were no detailed studies on litter and forest floor of Populus davidiana and Fraxinus mandshurica in this region.

24. In this research, random screening of 10 SSR primers from Populus and Salix, respectively, and the genetic relationship among 17 poplar cultivars and 20 willow cultivars were studied.

25. Under ordinary pressure, the methods of Kraft cooking, bisulfite cooking and organic solvents cooking were compared for the effects of separating lignin in Populus alba L.

26. The results showed that the variation of nitrogen utilization efficiency among seedlings of varied Populus nigra genotypes were significant at different nitrogen supply.

27. Experiments of effect of different cutting times on survival rate of Populus alba berolinensis were conducted in Yi'an County. based on variance analysis were compared the experiment results.

28. Effects of Site Condition on Growth and Spatial Differences of Soil Nutrient in Populus simonii Carr.

29. The characteristics of leaf structure and photosynthesis of 4 Salicaceae species Populus szechuanica var.

30. All that is certain is that its cause lay in the struggles between plebs and populus.