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Plastic Responses in Growth, Morphology, and Biomass Allocation of Five Subtropical Tree Species to Different Degrees of Shading

Huang, Zhijun and Liu, Qingqing and Tigabu, Mulualem and Jin, Shaofei and Ma, Xiangqing and Liu, Bo (2022). Plastic Responses in Growth, Morphology, and Biomass Allocation of Five Subtropical Tree Species to Different Degrees of Shading. Forests. 13 :7 , 996
[Research article]

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Abstract

We investigated how different degrees of shading affected growth, morphology, and biomass allocation in seedlings from two coniferous and three broadleaved species. The experiment was conducted in a shade house over a 1-year period. Our results showed that under increasing shade, seedlings from most species exhibited lower total biomass, net assimilation rates, relative growth rates, root mass ratios, and root/shoot ratios. In contrast, the slenderness quotients, leaf area ratios, and specific leaf areas increased with increasing shade. For coniferous species, growth traits were relatively more plastic (responsive to shade) than morphology or biomass allocation traits, whereas for broadleaved species, growth and biomass allocation were the most shade-sensitive traits. When comparing coniferous versus broadleaved species, the former had a higher growth plasticity index and lower allocation plasticity than the latter. Root biomass and stem mass ratio were the most and least plastic traits in response to shading. Our results indicate that shade differentially affects coniferous and broadleaved species in terms of their growth, morphology, and biomass allocation. These findings have important implications for the establishment and maintenance of mixed-species stands.

Authors/Creators:Huang, Zhijun and Liu, Qingqing and Tigabu, Mulualem and Jin, Shaofei and Ma, Xiangqing and Liu, Bo
Title:Plastic Responses in Growth, Morphology, and Biomass Allocation of Five Subtropical Tree Species to Different Degrees of Shading
Series Name/Journal:Forests
Year of publishing :2022
Volume:13
Number:7
Article number:996
Number of Pages:13
Publisher:MDPI
ISSN:1999-4907
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Forest Science
Keywords:plasticity, light adaptation, shade tolerance, morphology, shade avoidance syndrome
URN:NBN:urn:nbn:se:slu:epsilon-p-118596
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-118596
Additional ID:
Type of IDID
DOI10.3390/f13070996
Web of Science (WoS)000832227800001
ID Code:28734
Faculty:S - Faculty of Forest Sciences
Department:(S) > Southern Swedish Forest Research Centre
Deposited By: SLUpub Connector
Deposited On:02 Sep 2022 07:03
Metadata Last Modified:02 Sep 2022 07:11

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