A study of root distribution and the effect of Heterobasidion spp. root infection on the growth of live Scots pines (Pinus sylvestris) in Southern Sweden

Stump treatment against Heterobasidion spp. root infection has not been commonly conducted on Scots pine (Pinus sylvestris L.) plantations in Sweden. To assess whether it should be, growth and volume losses caused by H. spp. was studied in a 36-year old Scots pine stand in southern Sweden. A tota...

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Autor principal: Zhang, Jing
Formato: Second cycle, A2E
Lenguaje:sueco
Inglés
Publicado: 2012
Materias:
Acceso en línea:https://stud.epsilon.slu.se/5038/
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author Zhang, Jing
author_browse Zhang, Jing
author_facet Zhang, Jing
author_sort Zhang, Jing
collection Epsilon Archive for Student Projects
description Stump treatment against Heterobasidion spp. root infection has not been commonly conducted on Scots pine (Pinus sylvestris L.) plantations in Sweden. To assess whether it should be, growth and volume losses caused by H. spp. was studied in a 36-year old Scots pine stand in southern Sweden. A total of 24 Scots pine trees were extracted and checked for H. spp. root infection, followed by a stem analysis reconstructing the volume growth. Root morphology and location of infection were studied and different above-ground indicators were tested to assess the incidence of infection. H. spp. were detected on 87.5% of the studied trees and colonized 9.7% of root volume in average (0.0-32.3%), which resulted in a growth reduction of 1.93 m3 per hectare in the latest five years. Roots and infections were located unevenly in cardinal directions. Large primary roots were most susceptible to infections. Needle retention, crown length, DBH and presence of Heterobasidion fruiting bodies were not accurate enough as an infection indicator. In conclusion, the root morphology and data of infection may be used to calibrate some root disease models and it is recommended that stump treatment on Scots pine is conducted to maintain the site productivity in southern Sweden.
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spelling RepoSLU50382012-11-09T08:36:49Z https://stud.epsilon.slu.se/5038/ A study of root distribution and the effect of Heterobasidion spp. root infection on the growth of live Scots pines (Pinus sylvestris) in Southern Sweden Zhang, Jing Forestry production Forest injuries and protection Stump treatment against Heterobasidion spp. root infection has not been commonly conducted on Scots pine (Pinus sylvestris L.) plantations in Sweden. To assess whether it should be, growth and volume losses caused by H. spp. was studied in a 36-year old Scots pine stand in southern Sweden. A total of 24 Scots pine trees were extracted and checked for H. spp. root infection, followed by a stem analysis reconstructing the volume growth. Root morphology and location of infection were studied and different above-ground indicators were tested to assess the incidence of infection. H. spp. were detected on 87.5% of the studied trees and colonized 9.7% of root volume in average (0.0-32.3%), which resulted in a growth reduction of 1.93 m3 per hectare in the latest five years. Roots and infections were located unevenly in cardinal directions. Large primary roots were most susceptible to infections. Needle retention, crown length, DBH and presence of Heterobasidion fruiting bodies were not accurate enough as an infection indicator. In conclusion, the root morphology and data of infection may be used to calibrate some root disease models and it is recommended that stump treatment on Scots pine is conducted to maintain the site productivity in southern Sweden. 2012-11-07 Second cycle, A2E NonPeerReviewed application/pdf sv https://stud.epsilon.slu.se/5038/1/Zhang_J_121107.pdf Zhang, Jing, 2012. A study of root distribution and the effect of Heterobasidion spp. root infection on the growth of live Scots pines (Pinus sylvestris) in Southern Sweden. Second cycle, A2E. Alnarp: (S) > Southern Swedish Forest Research Centre <https://stud.epsilon.slu.se/view/divisions/OID-295.html> urn:nbn:se:slu:epsilon-s-1851 eng
spellingShingle Forestry production
Forest injuries and protection
Zhang, Jing
A study of root distribution and the effect of Heterobasidion spp. root infection on the growth of live Scots pines (Pinus sylvestris) in Southern Sweden
title A study of root distribution and the effect of Heterobasidion spp. root infection on the growth of live Scots pines (Pinus sylvestris) in Southern Sweden
title_full A study of root distribution and the effect of Heterobasidion spp. root infection on the growth of live Scots pines (Pinus sylvestris) in Southern Sweden
title_fullStr A study of root distribution and the effect of Heterobasidion spp. root infection on the growth of live Scots pines (Pinus sylvestris) in Southern Sweden
title_full_unstemmed A study of root distribution and the effect of Heterobasidion spp. root infection on the growth of live Scots pines (Pinus sylvestris) in Southern Sweden
title_short A study of root distribution and the effect of Heterobasidion spp. root infection on the growth of live Scots pines (Pinus sylvestris) in Southern Sweden
title_sort study of root distribution and the effect of heterobasidion spp. root infection on the growth of live scots pines (pinus sylvestris) in southern sweden
topic Forestry production
Forest injuries and protection
url https://stud.epsilon.slu.se/5038/
https://stud.epsilon.slu.se/5038/