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Title: Influence of photoperiod on growth for three desert CAM species. [Agave deserti, Ferocactus acanthodes, Opuntia ficus-indica]

Abstract

Agave deserti, Ferocactus acanthodes, and Opuntia ficus-indica were maintained in environmental growth chambers under a constant total daily photosynthetically active radiation (PAR) for 1 yr to investigate the effects of photoperiod on growth of these Crassulacean acid metabolism (CAM) species. As the photoperiod was increased from 6 h to 18 h, growth increased 33% for A. deserti, 81% for F. acanthodes, and 50% for O. ficus-indica. Such increases were explained based on PAR saturation of the C{sub 3} photosynthetic carbon reduction cycle utilized by CAM plants during the daytime. In particular, the highest instantaneous PAR occurred for the shortest photoperiod and led to less growth for the same total daily PAR. Also, the total daily net CO{sub 2} uptake which occurred primarily at night, increased 53% as the photoperiod was increased from 6 to 18 h for O. ficus-indica, even though the accompanying night length decreased. The only other observed morphological effect was the sevenfold increase in the number of new cladodes initiated as the photoperiod was increased from 6 h to 18 h for O. ficus-indica. The influence of photoperiod on the daily pattern of net CO{sub 2} uptake and lack of effect of drought on plant survival undermore » long photoperiods for O. ficus-indica differ from previous reports on this and other CAM species.« less

Authors:
 [1]
  1. Univ. of California, Los Angeles (USA)
Publication Date:
OSTI Identifier:
5033997
DOE Contract Number:  
FC03-87ER60615
Resource Type:
Journal Article
Journal Name:
Botanical Gazette (Chicago); (USA)
Additional Journal Information:
Journal Volume: 150:1; Journal ID: ISSN 0006-8071
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; DESERTS; PLANT GROWTH; PHOTOPERIOD; BIOLOGICAL EFFECTS; CARBON DIOXIDE; DROUGHTS; PHOTOSYNTHESIS; ARID LANDS; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; CHEMICAL REACTIONS; GROWTH; OXIDES; OXYGEN COMPOUNDS; PHOTOCHEMICAL REACTIONS; SYNTHESIS; 540210* - Environment, Terrestrial- Basic Studies- (1990-)

Citation Formats

Nobel, P S. Influence of photoperiod on growth for three desert CAM species. [Agave deserti, Ferocactus acanthodes, Opuntia ficus-indica]. United States: N. p., 1989. Web. doi:10.1086/337742.
Nobel, P S. Influence of photoperiod on growth for three desert CAM species. [Agave deserti, Ferocactus acanthodes, Opuntia ficus-indica]. United States. https://doi.org/10.1086/337742
Nobel, P S. 1989. "Influence of photoperiod on growth for three desert CAM species. [Agave deserti, Ferocactus acanthodes, Opuntia ficus-indica]". United States. https://doi.org/10.1086/337742.
@article{osti_5033997,
title = {Influence of photoperiod on growth for three desert CAM species. [Agave deserti, Ferocactus acanthodes, Opuntia ficus-indica]},
author = {Nobel, P S},
abstractNote = {Agave deserti, Ferocactus acanthodes, and Opuntia ficus-indica were maintained in environmental growth chambers under a constant total daily photosynthetically active radiation (PAR) for 1 yr to investigate the effects of photoperiod on growth of these Crassulacean acid metabolism (CAM) species. As the photoperiod was increased from 6 h to 18 h, growth increased 33% for A. deserti, 81% for F. acanthodes, and 50% for O. ficus-indica. Such increases were explained based on PAR saturation of the C{sub 3} photosynthetic carbon reduction cycle utilized by CAM plants during the daytime. In particular, the highest instantaneous PAR occurred for the shortest photoperiod and led to less growth for the same total daily PAR. Also, the total daily net CO{sub 2} uptake which occurred primarily at night, increased 53% as the photoperiod was increased from 6 to 18 h for O. ficus-indica, even though the accompanying night length decreased. The only other observed morphological effect was the sevenfold increase in the number of new cladodes initiated as the photoperiod was increased from 6 h to 18 h for O. ficus-indica. The influence of photoperiod on the daily pattern of net CO{sub 2} uptake and lack of effect of drought on plant survival under long photoperiods for O. ficus-indica differ from previous reports on this and other CAM species.},
doi = {10.1086/337742},
url = {https://www.osti.gov/biblio/5033997}, journal = {Botanical Gazette (Chicago); (USA)},
issn = {0006-8071},
number = ,
volume = 150:1,
place = {United States},
year = {1989},
month = {3}
}