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Title: Co[sub 2] exchange, environmental productivity indices, and productivity of opuntia ficus-indica under current and elevated CO[sub 2] concentrations

Abstract

This project involved placing mature cladodes (flattened stem segments) of Opuntia ficus-indica in growth chambers containing 360 or 720 ppM CO[sub 2]. After nine weeks, the new daughter cladodes initiated on the planted cladodes averaged 7% higher in biomass but 8% less is area, leading to a specific stem mass for this Crassulacean acid metabolism (CAM) species that was 16% higher under the elevated CO[sub 2] condition. This is similar to be less dramatic than the increase in specific leaf mass for C[sub 3] and C[sub 4] plants under elevated CO[sub 2], which generally ranges from 28% to 40%. Another contrast with C[sub 3] and C[sub 4] Plants was the reliance of the new organs of the CAM plant on biomass translocated from existing organs instead of derived directly from current photosynthate. In this regard, 18% less dry weight was translocated from basal cladodes into daughter cladodes of Q. ficus-indica at 720 ppM CO[sub 2] compared with 360 ppM.

Authors:
Publication Date:
Research Org.:
California Univ., Los Angeles, CA (United States). Lab. of Biomedical and Environmental Sciences
Sponsoring Org.:
USDOE; USDOE, Washington, DC (United States)
OSTI Identifier:
6899570
Report Number(s):
DOE/ER/61252-T1
ON: DE93006091
DOE Contract Number:  
FG03-91ER61252
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; 54 ENVIRONMENTAL SCIENCES; CACTI; PLANT GROWTH; CARBON DIOXIDE; BIOLOGICAL EFFECTS; CARBON DIOXIDE FIXATION; CLIMATIC CHANGE; RESPIRATION; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; GROWTH; MAGNOLIOPHYTA; MAGNOLIOPSIDA; OXIDES; OXYGEN COMPOUNDS; PLANTS; 560300* - Chemicals Metabolism & Toxicology; 540120 - Environment, Atmospheric- Chemicals Monitoring & Transport- (1990-)

Citation Formats

Nobel, P S. Co[sub 2] exchange, environmental productivity indices, and productivity of opuntia ficus-indica under current and elevated CO[sub 2] concentrations. United States: N. p., 1992. Web. doi:10.2172/6899570.
Nobel, P S. Co[sub 2] exchange, environmental productivity indices, and productivity of opuntia ficus-indica under current and elevated CO[sub 2] concentrations. United States. https://doi.org/10.2172/6899570
Nobel, P S. 1992. "Co[sub 2] exchange, environmental productivity indices, and productivity of opuntia ficus-indica under current and elevated CO[sub 2] concentrations". United States. https://doi.org/10.2172/6899570. https://www.osti.gov/servlets/purl/6899570.
@article{osti_6899570,
title = {Co[sub 2] exchange, environmental productivity indices, and productivity of opuntia ficus-indica under current and elevated CO[sub 2] concentrations},
author = {Nobel, P S},
abstractNote = {This project involved placing mature cladodes (flattened stem segments) of Opuntia ficus-indica in growth chambers containing 360 or 720 ppM CO[sub 2]. After nine weeks, the new daughter cladodes initiated on the planted cladodes averaged 7% higher in biomass but 8% less is area, leading to a specific stem mass for this Crassulacean acid metabolism (CAM) species that was 16% higher under the elevated CO[sub 2] condition. This is similar to be less dramatic than the increase in specific leaf mass for C[sub 3] and C[sub 4] plants under elevated CO[sub 2], which generally ranges from 28% to 40%. Another contrast with C[sub 3] and C[sub 4] Plants was the reliance of the new organs of the CAM plant on biomass translocated from existing organs instead of derived directly from current photosynthate. In this regard, 18% less dry weight was translocated from basal cladodes into daughter cladodes of Q. ficus-indica at 720 ppM CO[sub 2] compared with 360 ppM.},
doi = {10.2172/6899570},
url = {https://www.osti.gov/biblio/6899570}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {1}
}