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抗松针褐斑病湿地松组培苗生根条件的优化(PDF)

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

Issue:
2011年06期
Page:
59-62
Column:
研究论文
publishdate:
2011-11-28

Article Info:/Info

Title:
Optimization of root formation in microcuttings of diseaserisistant Pinus elliottii
Author(s):
AN HuicuiYE Jianren*WU XiaoqinLIU GeZHU Lihua
Jiangsu Key Laboratory for Prevention and Management of Invasive Species, College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037,China
Keywords:
resistant Pinus elliottiiroot formationregeneration plantsurvival rate
Classification number :
S432.2+1
DOI:
10.3969/j.jssn.1000-2006.2011.06.012
Document Code:
A
Abstract:
The conditions for root formation and development in microcuttings of Pinus elliottii which were resistant to Lecanosticta acicola were optimized. The results showed that the addition of 0.4 mg/L PP333 to WPM medium in combination with 4.0 mg/L IBA and 0.07 mg/L NAA was beneficial to root induction phase. After the formation of adventitious root primordia, the microcuttings were transferred into the disk containing vermiculite, which were favorable to root expression. Using this procedure, the frequency of root induction was up to 100 % and the survival rate of regerated plantlets reached up to 85 %. Significant genotypic variation at both the family and the clonewithinfamily levels was observed in the survival rate of transplanted plantlets.

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Last Update: 2011-11-28