Differences in aluminum tolerance of populus genotypes : development of methodology for identification of poplar genotypes suitable for acidic forest land

Forest lands hold great potential for Populus plantations for bionenergy purposes. However in native boreal forests where land for establishing these plantations is abundant poplars encounter challenges in establishment. One of these challenges is aluminum (Al) - one of the major factors hindering p...

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Main Author: Arlauskas, Mikas
Format: H2
Language:Inglés
Published: SLU/Southern Swedish Forest Research Centre 2020
Subjects:
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author Arlauskas, Mikas
author_browse Arlauskas, Mikas
author_facet Arlauskas, Mikas
author_sort Arlauskas, Mikas
collection Epsilon Archive for Student Projects
description Forest lands hold great potential for Populus plantations for bionenergy purposes. However in native boreal forests where land for establishing these plantations is abundant poplars encounter challenges in establishment. One of these challenges is aluminum (Al) - one of the major factors hindering plant growth by inhibiting root growth, thus reducing water and nutrient uptake and slowing growth. Forest soils normally have low pH and thus higher levels of aluminum ions (Al3+ and hydroxides). However there is evidence of Al tolerance among Populus species thus if succsessfully identified, could be able to grow on forest sites. The aim of the study is to evaluate growth response of Populus hybrids to different of aluminum concentrations and identify the type of data should be collected if the clones with differences in Al should be identified. In this study, growth responses of greenhouse-grown poplar (P. trichocarpa hybrids) were monitored in relation to changes in Al concentrations in quartz sand. The results identified several poplar clones which were more tolerant and most susceptible to Al. The differences in Al sensitivity were identified by measurements of relative stem growth, root biomass and supported by staining with hematoxylin for root damages. The findings suggest that identification of Al tolerant Populus clones requires several steps of data collection. What is more, further experimentation is required to fully confirm that the selected clones are truly capable of establishment on forest sites with investigation of those sites soil properties.
format H2
id RepoSLU17041
institution Swedish University of Agricultural Sciences
language Inglés
publishDate 2020
publishDateSort 2020
publisher SLU/Southern Swedish Forest Research Centre
publisherStr SLU/Southern Swedish Forest Research Centre
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spelling RepoSLU170412021-08-26T04:01:04Z Differences in aluminum tolerance of populus genotypes : development of methodology for identification of poplar genotypes suitable for acidic forest land Arlauskas, Mikas populus poplar poplar hybrids aluminum aluminum tolerance aluminum sensitivity aluminum susceptibility aluminum toxicity Forest lands hold great potential for Populus plantations for bionenergy purposes. However in native boreal forests where land for establishing these plantations is abundant poplars encounter challenges in establishment. One of these challenges is aluminum (Al) - one of the major factors hindering plant growth by inhibiting root growth, thus reducing water and nutrient uptake and slowing growth. Forest soils normally have low pH and thus higher levels of aluminum ions (Al3+ and hydroxides). However there is evidence of Al tolerance among Populus species thus if succsessfully identified, could be able to grow on forest sites. The aim of the study is to evaluate growth response of Populus hybrids to different of aluminum concentrations and identify the type of data should be collected if the clones with differences in Al should be identified. In this study, growth responses of greenhouse-grown poplar (P. trichocarpa hybrids) were monitored in relation to changes in Al concentrations in quartz sand. The results identified several poplar clones which were more tolerant and most susceptible to Al. The differences in Al sensitivity were identified by measurements of relative stem growth, root biomass and supported by staining with hematoxylin for root damages. The findings suggest that identification of Al tolerant Populus clones requires several steps of data collection. What is more, further experimentation is required to fully confirm that the selected clones are truly capable of establishment on forest sites with investigation of those sites soil properties. SLU/Southern Swedish Forest Research Centre 2020 H2 eng https://stud.epsilon.slu.se/17041/
spellingShingle populus
poplar
poplar hybrids
aluminum
aluminum tolerance
aluminum sensitivity
aluminum susceptibility
aluminum toxicity
Arlauskas, Mikas
Differences in aluminum tolerance of populus genotypes : development of methodology for identification of poplar genotypes suitable for acidic forest land
title Differences in aluminum tolerance of populus genotypes : development of methodology for identification of poplar genotypes suitable for acidic forest land
title_full Differences in aluminum tolerance of populus genotypes : development of methodology for identification of poplar genotypes suitable for acidic forest land
title_fullStr Differences in aluminum tolerance of populus genotypes : development of methodology for identification of poplar genotypes suitable for acidic forest land
title_full_unstemmed Differences in aluminum tolerance of populus genotypes : development of methodology for identification of poplar genotypes suitable for acidic forest land
title_short Differences in aluminum tolerance of populus genotypes : development of methodology for identification of poplar genotypes suitable for acidic forest land
title_sort differences in aluminum tolerance of populus genotypes : development of methodology for identification of poplar genotypes suitable for acidic forest land
topic populus
poplar
poplar hybrids
aluminum
aluminum tolerance
aluminum sensitivity
aluminum susceptibility
aluminum toxicity