Abstract
Previously the authors examined how limited rooting space and nutrient supply influenced plant growth under elevated atmospheric CO[sub 2] concentrations. To gain insight into how elevated CO[sub 2] atmospheres affect how plants utilize available belowground space, when rooting space and nutrient supply are limited, they measured the deployment of roots within pots through time. Contrary to aboveground responses, patterns of belowground deployment were most strongly influenced by elevated CO[sub 2] in pots of different volume and shape. Further, elevated CO[sub 2] conditions interacted differently with limited belowground space for the two species studied, Abutilon theophrasti, a C[sub 3] dicot with a deep taproot, and Setaria faberii, a C4 monocot with a shallow fibrous root system. For Setaria, elevated CO[sub 2] increased the size of the largest region of low root density at the pot surface in larger rooting volumes independent of nutrient content, thereby decreasing their efficiency of deployment. For Abutilon, plants responded to elevated CO[sub 2] concentrations by equalizing the pattern of deployment in all the pots. Nutrient concentration, and not pot size or shape, greatly influenced the density of root growth. Root densities for Abutilon and Setaria were similar to those observed in field conditions, for annual dicots
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Berntson, G M;
McConnaughay, K D.M.;
Bazzaz, F A
[1]
- Harvard University, Cambridge, MA (United States). Dept. of Organismic and Evolutionary Biology
Citation Formats
Berntson, G M, McConnaughay, K D.M., and Bazzaz, F A.
Elevated CO[sub 2] alters deployment of roots in small growth containers.
Germany: N. p.,
1993.
Web.
doi:10.1007/BF00566972.
Berntson, G M, McConnaughay, K D.M., & Bazzaz, F A.
Elevated CO[sub 2] alters deployment of roots in small growth containers.
Germany.
https://doi.org/10.1007/BF00566972
Berntson, G M, McConnaughay, K D.M., and Bazzaz, F A.
1993.
"Elevated CO[sub 2] alters deployment of roots in small growth containers."
Germany.
https://doi.org/10.1007/BF00566972.
@misc{etde_5778543,
title = {Elevated CO[sub 2] alters deployment of roots in small growth containers}
author = {Berntson, G M, McConnaughay, K D.M., and Bazzaz, F A}
abstractNote = {Previously the authors examined how limited rooting space and nutrient supply influenced plant growth under elevated atmospheric CO[sub 2] concentrations. To gain insight into how elevated CO[sub 2] atmospheres affect how plants utilize available belowground space, when rooting space and nutrient supply are limited, they measured the deployment of roots within pots through time. Contrary to aboveground responses, patterns of belowground deployment were most strongly influenced by elevated CO[sub 2] in pots of different volume and shape. Further, elevated CO[sub 2] conditions interacted differently with limited belowground space for the two species studied, Abutilon theophrasti, a C[sub 3] dicot with a deep taproot, and Setaria faberii, a C4 monocot with a shallow fibrous root system. For Setaria, elevated CO[sub 2] increased the size of the largest region of low root density at the pot surface in larger rooting volumes independent of nutrient content, thereby decreasing their efficiency of deployment. For Abutilon, plants responded to elevated CO[sub 2] concentrations by equalizing the pattern of deployment in all the pots. Nutrient concentration, and not pot size or shape, greatly influenced the density of root growth. Root densities for Abutilon and Setaria were similar to those observed in field conditions, for annual dicots and monocots respectively, suggesting that studies using pots may successfully mimic natural conditions.}
doi = {10.1007/BF00566972}
journal = []
volume = {94:4}
journal type = {AC}
place = {Germany}
year = {1993}
month = {Jul}
}
title = {Elevated CO[sub 2] alters deployment of roots in small growth containers}
author = {Berntson, G M, McConnaughay, K D.M., and Bazzaz, F A}
abstractNote = {Previously the authors examined how limited rooting space and nutrient supply influenced plant growth under elevated atmospheric CO[sub 2] concentrations. To gain insight into how elevated CO[sub 2] atmospheres affect how plants utilize available belowground space, when rooting space and nutrient supply are limited, they measured the deployment of roots within pots through time. Contrary to aboveground responses, patterns of belowground deployment were most strongly influenced by elevated CO[sub 2] in pots of different volume and shape. Further, elevated CO[sub 2] conditions interacted differently with limited belowground space for the two species studied, Abutilon theophrasti, a C[sub 3] dicot with a deep taproot, and Setaria faberii, a C4 monocot with a shallow fibrous root system. For Setaria, elevated CO[sub 2] increased the size of the largest region of low root density at the pot surface in larger rooting volumes independent of nutrient content, thereby decreasing their efficiency of deployment. For Abutilon, plants responded to elevated CO[sub 2] concentrations by equalizing the pattern of deployment in all the pots. Nutrient concentration, and not pot size or shape, greatly influenced the density of root growth. Root densities for Abutilon and Setaria were similar to those observed in field conditions, for annual dicots and monocots respectively, suggesting that studies using pots may successfully mimic natural conditions.}
doi = {10.1007/BF00566972}
journal = []
volume = {94:4}
journal type = {AC}
place = {Germany}
year = {1993}
month = {Jul}
}