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美洲黑杨维管形成层发生发育的解剖学观察(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
1999年06期
Page:
56-60
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
The Anatomical Observation on the Occurrence and Development of Vascular Cambium in Populus deltoides
Article ID:
1000-2006(1999)06-0056-05
Author(s):
Yin Zengfang\ Fan Ruwen\ Gan Xihua\ Huang Guobing
College of Forest Resources and Environment Nanjing Forestry University\ Nanjing\ 210037
Keywords:
Populus deltoides ProcambiumVascular cambiumOccurrenceDevelopment
Classification number :
S718.47
DOI:
10.3969/j.jssn.1000-2006.1999.06.013
Document Code:
A
Abstract:
The material used for this study was collected December May during 2 successive years (1997~1998)from the branches of apparently healthy Populus deltoides growing on the campus of Nanjing Forestry University,Nanjing, China.The samples were taken from three or four trees at 5 day or monthly intervals.The stem and the shoot were fixed in FAA prepared for anatomical studies.The occurrence and development of vascular cambium in Populus deltoides were studied in serial sections of shoot and stem.The results show as follows:(1)The transition from apical meristem to procambium and from procambium to cambium turn toward gradually the apex of stem in process,and the leaf trace is related to vascular tissues closely.(2)The vascular cambium is non stratified,and begins activity before the budding.It marched into the exuberant activity stage in the middle of April,and the cell which derived from the division of vascular cambium differentiated rapidly into vessel forming metaxylem.

References

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Last Update: 1900-01-01