Full TGIF Record # 307612
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DOI:10.1007/s11104-019-04117-7
Web URL(s):https://link.springer.com/article/10.1007/s11104-019-04117-7
    Last checked: 08/15/2019
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https://link.springer.com/content/pdf/10.1007%2Fs11104-019-04117-7.pdf
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Publication Type:
i
Refereed
Author(s):Hanslin, Hans Martin; Bischoff, Armin; Hovstad, Knut Anders
Author Affiliation:Hanslin: Department of Urban Greening and Environmental Engineering, The Norwegian Institute of Bioeconomy Research (NIBIO), ^DoAs, Norway; Bischoff: Mediterranean Institute of Biodiversity and Ecology, IMBE, Aix-Marseille University, Avignon University, CNRS, IRD, IUT Agroparc, France; Hovstad: Department of Landscape and Biodiversity, The Norwegian Institute of Bioeconomy Research (NIBIO), ^DoAs, Norway
Title:Root growth plasticity to drought in seedlings of perennial grasses
Source:Plant and Soil. Vol. 440, No. 1, July 2019, p. 551-568.
# of Pages:18
Publishing Information:Dordrecht, The Netherlands: Kluwer Academic Publishers
Related Web URL:https://link.springer.com/article/10.1007/s11104-019-04117-7#Abs1
    Last checked: 08/15/2019
    Notes: Abstract only
Keywords:TIC Keywords: Biomass; Drought resistance; Root depth; Root growth; Root morphology; Seedlings; Water uptake
Abstract/Contents:"Aim: Root growth strategies may be critical for seeding survival and establishment under dry conditions, but these strategies and their plasticity are little known. We aim to document the ability of young grass seedlings to adjust their root system architecture, root morphology and biomass allocation to roots to promote water uptake and survival under progressive drought. Methods: Seedlings growing in columns filled with sand and exposed to drought or well-watered controls were repeatedly harvested for determination of biomass fractions, root length, -architecture and -morphology in a greenhouse experiment. Allometric scaling exponents and standardised major axis regression were used to investigate allocation patterns. Results: Young seedlings were able to sustain leaf turgor and functions during eight weeks of progressive drought through phenotypic plasticity of the primary root system producing deeper and simpler roots. Biomass allocation to roots decreased or did not respond, and other components of root morphology showed only moderate plasticity. Conclusion: Our results suggest that morphological and architectural plasticity of the primary root system may well be key features for dehydration avoidance and survival in grass seedlings under moderate drought when allocation of biomass to roots and development of secondary roots are constrained."
Language:English
References:76
Note:Pictures, b/w
Tables
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hanslin, H. M., A. Bischoff, and K. A. Hovstad. 2019. Root growth plasticity to drought in seedlings of perennial grasses. Plant Soil. 440(1):p. 551-568.
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DOI: 10.1007/s11104-019-04117-7
Web URL(s):
https://link.springer.com/article/10.1007/s11104-019-04117-7
    Last checked: 08/15/2019
    Access conditions: Item is within a limited-access website
https://link.springer.com/content/pdf/10.1007%2Fs11104-019-04117-7.pdf
    Last checked: 08/15/2019
    Requires: PDF Reader
    Access conditions: Item is within a limtied-access website
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