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Rooting and early shoot characteristics ofPicea abies(L.) karst. cuttings originating from shoots with enforced vertical growth

 

作者: BengtG. Bentzer,  

 

期刊: Scandinavian Journal of Forest Research  (Taylor Available online 1988)
卷期: Volume 3, issue 1-4  

页码: 481-491

 

ISSN:0282-7581

 

年代: 1988

 

DOI:10.1080/02827588809382533

 

出版商: Taylor & Francis Group

 

关键词: Picea abies;cuttings;rooting;plagiotrophy;root quality;mother‐plant manipulation;cutting‐type

 

数据来源: Taylor

 

摘要:

Picea abiesmother‐plants from 10 serially propagated clones (14 years old, chronologically) were treated in four different ways: (1) control with intact, non‐manipulated plants; (2) like (1) but with the leader cut off; (3) intact plants but with all branches of the upper two whorls forced to grow in a vertical way; and (4) like (3) but with the leader cut off. Cuttings from four positions (cutting‐types) on the mother‐plants were collected, rooted and evaluated for rooting%, number of main roots, number of lateral roots, plagiotrophy, needle symmetry on leader and growth of leader. Treatments 3 and 4 resulted in cuttings with more plagiotropic growth but with better rooting, more lateral roots and better growth than did cuttings from treatments 1 and 2. The genotype had a significant influence on rooting. Number of main roots was significantly influenced by the genotype and the cutting‐type, but not of the mother‐plant treatment. Symmetry of needles on the leader was fairly weakly influenced by genotype and cutting‐type yet not influenced by mother‐plant treatment. Clone effect was significant for leader growth.

 

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