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פותח על ידי קלירמאש פתרונות בע"מ -
Synergistic effects of elevated CO2 and fertilization on net CO2 uptake and growth of the CAM plant hylocereus undatus
Year:
2009
Authors :
רווה, ערן
;
.
Volume :
134
Co-Authors:
Weiss, I., Department of Life Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
Mizrahi, Y., Department of Life Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
Raveh, E., Gilat Research Center, Agricultural Research Organization, Ministry of Agriculture, Mobile Post Negev 85280, Israel
Facilitators :
From page:
364
To page:
371
(
Total pages:
8
)
Abstract:
This study examined the response of the crassulacean acid metabolism (CAM) vine-cactus fruit crop species Hylocereus undatus to two CO2 regimes [enrichment (1000 μmol mol-1) vs. ambient control (380 μmol mol-1)] and to two fertilization regimes [0.5- vs. 0.1-strength Hoagland's solution (designated high and low, respectively)]. CO2 enrichment increased total daily net CO2 uptake, nocturnal acid accumulation, shoot elongation, and total dry mass by 39%, 24%, 14%, and 6% (averaging the two fertilization regimes) versus ambient CO2 treatment, respectively. Plants exposed to high fertilization demonstrated 36%, 21%, 198%, and 79% (averaging the two CO2 regimes) increases versus those receiving the low fertilization regime in total daily net CO2 uptake, nocturnal acid accumulation, stem elongation, and total dry mass, respectively. Plants exposed to high fertilization and elevated CO2 demonstrated 108%, 77%, 264%, and 111% increases versus those receiving the low fertilization regime at the ambient CO2 concentration in total daily net CO2 uptake, nocturnal acid accumulation, stem elongation, and total dry mass, respectively. This response was 25% to 71% higher than the summed effects of the separate responses to each factor, indicating a synergistic effect of elevated CO2 and high fertilization. Thus, it is apparent that H. undatus crops grown under a high-fertilization agromanagement regime may benefit from elevated CO2 to a greater extent than those grown with low fertilization.
Note:
Related Files :
Crassulaceae
Hoagland's solution
Hylocereus undatus
Leptocereus quadricostatus
nutrient
Pitahaya
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
20421
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:36
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Scientific Publication
Synergistic effects of elevated CO2 and fertilization on net CO2 uptake and growth of the CAM plant hylocereus undatus
134
Weiss, I., Department of Life Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
Mizrahi, Y., Department of Life Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
Raveh, E., Gilat Research Center, Agricultural Research Organization, Ministry of Agriculture, Mobile Post Negev 85280, Israel
Synergistic effects of elevated CO2 and fertilization on net CO2 uptake and growth of the CAM plant hylocereus undatus
This study examined the response of the crassulacean acid metabolism (CAM) vine-cactus fruit crop species Hylocereus undatus to two CO2 regimes [enrichment (1000 μmol mol-1) vs. ambient control (380 μmol mol-1)] and to two fertilization regimes [0.5- vs. 0.1-strength Hoagland's solution (designated high and low, respectively)]. CO2 enrichment increased total daily net CO2 uptake, nocturnal acid accumulation, shoot elongation, and total dry mass by 39%, 24%, 14%, and 6% (averaging the two fertilization regimes) versus ambient CO2 treatment, respectively. Plants exposed to high fertilization demonstrated 36%, 21%, 198%, and 79% (averaging the two CO2 regimes) increases versus those receiving the low fertilization regime in total daily net CO2 uptake, nocturnal acid accumulation, stem elongation, and total dry mass, respectively. Plants exposed to high fertilization and elevated CO2 demonstrated 108%, 77%, 264%, and 111% increases versus those receiving the low fertilization regime at the ambient CO2 concentration in total daily net CO2 uptake, nocturnal acid accumulation, stem elongation, and total dry mass, respectively. This response was 25% to 71% higher than the summed effects of the separate responses to each factor, indicating a synergistic effect of elevated CO2 and high fertilization. Thus, it is apparent that H. undatus crops grown under a high-fertilization agromanagement regime may benefit from elevated CO2 to a greater extent than those grown with low fertilization.
Scientific Publication
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