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Effect of elevated CO2 on vegetative and reproductive growth characteristics of the CAM plants Hylocereus undatus and Selenicereus megalanthus
Year:
2010
Source of publication :
Scientia Horticulturae
Authors :
Raveh, Eran
;
.
Volume :
123
Co-Authors:
Weiss, I., Department of Life Sciences, Ben-Gurion University of the Negev, PO Box 653, Beer-Sheva, 84105, Israel
Mizrahi, Y., Department of Life Sciences, Ben-Gurion University of the Negev, PO Box 653, Beer-Sheva, 84105, Israel
Raveh, E., Gilat Research Center, Agricultural Research Organization, Ministry of Agriculture, Mobile Post Negev 2, 85280, Israel
Facilitators :
From page:
531
To page:
536
(
Total pages:
6
)
Abstract:
This study examined the vegetative and reproductive growth responses of the crassulacean acid metabolism (CAM) vine-cactus fruit crop species Hylocereus undatus and Selenicereus megalanthus to CO2 enrichment (1000 μmol mol-1 vs. control of 380 μmol mol-1). H. undatus plants enriched with CO2 demonstrated 52%, 22%, 18%, and 175% increases, relative to plants measured in ambient CO2, in total daily net CO2 uptake, shoot elongation, shoot dry mass, and number of reproductive buds, respectively. The responses of S. megalanthus plants exposed to elevated CO2 were greater than those of H. undatus under the same conditions. Compared to plant responses in ambient CO2, under conditions of CO2 enrichment, S. megalanthus showed 129%, 73%, 68%, and 233% increases in total daily net CO2 uptake, shoot elongation, shoot dry mass, and number of reproductive buds, respectively. Moreover, for H. undatus, there was no significant change in fruit fresh mass although it showed a slight (7%) upward trend. On the other hand, fruit fresh mass of S. megalanthus significantly increased by 63% in response to elevated CO2. These results indicate the high potential of CAM plants to respond to CO2 enrichment. It is thus apparent that S. megalanthus grown under CO2 enrichment may benefit from elevated CO2 to a greater extent than H. undatus grown under sub-optimal growth conditions. © 2009 Elsevier B.V. All rights reserved.
Note:
Related Files :
Crassulaceae
dry matter
fruiting
Hylocereus undatus
metabolism
Selenicereus megalanthus
vegetative propagation
Show More
Related Content
More details
DOI :
10.1016/j.scienta.2009.11.002
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
21179
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:42
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Scientific Publication
Effect of elevated CO2 on vegetative and reproductive growth characteristics of the CAM plants Hylocereus undatus and Selenicereus megalanthus
123
Weiss, I., Department of Life Sciences, Ben-Gurion University of the Negev, PO Box 653, Beer-Sheva, 84105, Israel
Mizrahi, Y., Department of Life Sciences, Ben-Gurion University of the Negev, PO Box 653, Beer-Sheva, 84105, Israel
Raveh, E., Gilat Research Center, Agricultural Research Organization, Ministry of Agriculture, Mobile Post Negev 2, 85280, Israel
Effect of elevated CO2 on vegetative and reproductive growth characteristics of the CAM plants Hylocereus undatus and Selenicereus megalanthus
This study examined the vegetative and reproductive growth responses of the crassulacean acid metabolism (CAM) vine-cactus fruit crop species Hylocereus undatus and Selenicereus megalanthus to CO2 enrichment (1000 μmol mol-1 vs. control of 380 μmol mol-1). H. undatus plants enriched with CO2 demonstrated 52%, 22%, 18%, and 175% increases, relative to plants measured in ambient CO2, in total daily net CO2 uptake, shoot elongation, shoot dry mass, and number of reproductive buds, respectively. The responses of S. megalanthus plants exposed to elevated CO2 were greater than those of H. undatus under the same conditions. Compared to plant responses in ambient CO2, under conditions of CO2 enrichment, S. megalanthus showed 129%, 73%, 68%, and 233% increases in total daily net CO2 uptake, shoot elongation, shoot dry mass, and number of reproductive buds, respectively. Moreover, for H. undatus, there was no significant change in fruit fresh mass although it showed a slight (7%) upward trend. On the other hand, fruit fresh mass of S. megalanthus significantly increased by 63% in response to elevated CO2. These results indicate the high potential of CAM plants to respond to CO2 enrichment. It is thus apparent that S. megalanthus grown under CO2 enrichment may benefit from elevated CO2 to a greater extent than H. undatus grown under sub-optimal growth conditions. © 2009 Elsevier B.V. All rights reserved.
Scientific Publication
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