Correlations Between Biomass Allocation, Relative Growth Rate and Light Environment in Tropical Forest Saplings

1991 ◽  
Vol 5 (4) ◽  
pp. 485 ◽  
Author(s):  
D. A. King
Keyword(s):  
Growth Rate ◽  
Tropical Forest ◽  
Relative Growth Rate ◽  
Biomass Allocation ◽  
Light Environment ◽  
Relative Growth

scholarly journals Temporal trait plasticity and neighborhood crowding predict the growth of tropical trees

2020 ◽  
Author(s):  
Mengesha Asefa ◽  
Xiaoyang Song ◽  
Min Cao ◽  
Jesse R. Lasky ◽  
Jie Yang
Keyword(s):  
Growth Rate ◽  
Environmental Change ◽  
Tropical Forest ◽  
Relative Growth Rate ◽  
Functional Traits ◽  
Temporal Changes ◽  
Mixed Effect ◽  
Relative Growth ◽  
Time Points ◽  
Trait Plasticity

AbstractFunctional traits and neighborhood composition have been used to predict tree growth dynamics. Temporal changes in trait values (temporal trait plasticity) is one of the mechanisms for adaptive plastic response to environmental change. However, the consequence of temporal change in trait values and neighborhoods on the growth performance of individuals has rarely been investigated. We, therefore tested the effect of temporal changes in trait values and neighborhood crowding on the growth rate of individuals in a tropical forest using a dataset containing individual level growth and functional trait data for Ficus individuals. We collected trait and size data at two time points (2010 and 2017) for 472 individuals of 15 Ficus species in Xishuangbanna tropical forest dynamics plot, southwest China. We used linear mixed effect model to predict the effect of temporal trait plasticity and neighborhood crowding on the relative growth rate of individuals using these data. We found significant temporal changes in individuals’ functional traits suggesting a shift in ecological strategies from being functionally acquisitive to conservative. We also found differences in neighborhood crowding between the two census years indicating that the strength of individual interactions might change over time. The temporal changes in trait values and neighborhood crowding were found to predict better the relative growth rate of individuals, compared to static trait or crowding values in the initial and final censuses. We also found major axes of tree functional strategies in a principal component analysis, highlighting potentially adaptive trait differences. Our results in general highlight to consider the temporal dimension of functional traits and biotic interactions, as our result suggest that growth-trait relationships may vary between time points, allowing us to understand the demographic response of species to temporal environmental change.

scholarly journals Relative growth rate and biomass allocation in 20 Aegilops (Poaceae) species

2008 ◽  
Vol 140 (3) ◽  
pp. 425-437 ◽  
Author(s):  
RAFAEL VILLAR ◽  
ERIK J. VENEKLAAS ◽  
PEDRO JORDANO ◽  
HANS LAMBERS
Keyword(s):  
Growth Rate ◽  
Relative Growth Rate ◽  
Biomass Allocation ◽  
Relative Growth

scholarly journals Flooding avoidance Triplaris gardneriana Wedd. (Polygonaceae): growth and morpho-anatomical aspects

2016 ◽  
Vol 38 (3) ◽  
pp. 341 ◽  
Author(s):  
Vanessa Pontara ◽  
Marcelo Leandro Bueno ◽  
Edna Scremin-Dias
Keyword(s):  
Growth Rate ◽  
Relative Growth Rate ◽  
Biomass Allocation ◽  
Adventitious Roots ◽  
Central Cylinder ◽  
Response To Treatment ◽  
Vessel Element ◽  
Key Factors ◽  
Relative Growth

The aim of this study was to analyze the effect of flooding in Triplaris gardneriana Wedd, cultivated in drained soil (control) and in flooded condition. The experiment was developed in a greenhouse, using plants with 90 days after the emergency. The response to treatment was evaluated at 0, 30, 60 and 90 days. Growth measurements were made, such as biomass allocation, relative growth rate (RGR). Adventitious roots were not measured only observed, as well as the development of hypertrophied lenticels. The RGR was continuously reduced along the 90 days in flooding conditions for the roots, stem and leaves, compared to control. The flooding of the substrate caused alterations such as: increasing of the cortex width and diameter of the central cylinder of root and increasing the diameter of the vessel element of the root and stem. Results show that T. gardneriana remains under stress when submitted to flooding. Therefore, the production of structures as lenticels, aerenchyma and adventitious roots, structures related to the avoidance of this type of stress, were key factors for the maintenance and survival of T. gardneriana. 

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