Effect of carbon dioxide-enrichment on tobacco
Three-wk old seedlings of tobacco variety Bell-W3 and Bell-B were grown in growth chambers under sunlight and subjected to 3 levels of ambient CO2 concentrations: 300-315 (low), 350-400 (medium) and 600-700 (high) umol mol-1.Weekly measurements of rates of photosynthesis, respiration, transpiration...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Malaysian Society of Plant Physiology
1990
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/47355/1/Effect%20of%20carbon%20dioxide-enrichment%20on%20tobacco.pdf |
| _version_ | 1825929790027202560 |
|---|---|
| author | Awang, Muhamad A. Halim, Ridzwan |
| author_facet | Awang, Muhamad A. Halim, Ridzwan |
| author_sort | Awang, Muhamad |
| collection | UPM |
| description | Three-wk old seedlings of tobacco variety Bell-W3 and Bell-B were grown in growth chambers under sunlight and subjected to 3 levels of ambient CO2 concentrations:
300-315 (low), 350-400 (medium) and 600-700 (high) umol mol-1.Weekly measurements of rates of photosynthesis, respiration, transpiration, diffusive resistance and chlorophyll content were taken for 5 wks after which plants were harvested for dry matter yield estimations. Photosynthetic and respiratory rates showed a trend for a quadratic increase with increasing CO2 levels. Variety Bell-W3 had a 27% greater rate of photosynthesis and 12% greater chlorophyll content than variety Bell-B. Variety Bell-W3 also showed a 50% increase in total yield at the high CO2 compared to the medium and low CO2 treatments. No differences in yield was obtained for variety Bell-B. The differences in response between the two varieties may be associated with their inherent photosynthetic capacity. |
| first_indexed | 2024-03-06T09:01:52Z |
| format | Article |
| id | upm.eprints-47355 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T09:01:52Z |
| publishDate | 1990 |
| publisher | Malaysian Society of Plant Physiology |
| record_format | dspace |
| spelling | upm.eprints-473552016-05-05T07:29:26Z http://psasir.upm.edu.my/id/eprint/47355/ Effect of carbon dioxide-enrichment on tobacco Awang, Muhamad A. Halim, Ridzwan Three-wk old seedlings of tobacco variety Bell-W3 and Bell-B were grown in growth chambers under sunlight and subjected to 3 levels of ambient CO2 concentrations: 300-315 (low), 350-400 (medium) and 600-700 (high) umol mol-1.Weekly measurements of rates of photosynthesis, respiration, transpiration, diffusive resistance and chlorophyll content were taken for 5 wks after which plants were harvested for dry matter yield estimations. Photosynthetic and respiratory rates showed a trend for a quadratic increase with increasing CO2 levels. Variety Bell-W3 had a 27% greater rate of photosynthesis and 12% greater chlorophyll content than variety Bell-B. Variety Bell-W3 also showed a 50% increase in total yield at the high CO2 compared to the medium and low CO2 treatments. No differences in yield was obtained for variety Bell-B. The differences in response between the two varieties may be associated with their inherent photosynthetic capacity. Malaysian Society of Plant Physiology 1990 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/47355/1/Effect%20of%20carbon%20dioxide-enrichment%20on%20tobacco.pdf Awang, Muhamad and A. Halim, Ridzwan (1990) Effect of carbon dioxide-enrichment on tobacco. Transactions of the Malaysian Society of Plant Physiology, 1. pp. 79-82. ISSN 0128-9004 |
| spellingShingle | Awang, Muhamad A. Halim, Ridzwan Effect of carbon dioxide-enrichment on tobacco |
| title | Effect of carbon dioxide-enrichment on tobacco |
| title_full | Effect of carbon dioxide-enrichment on tobacco |
| title_fullStr | Effect of carbon dioxide-enrichment on tobacco |
| title_full_unstemmed | Effect of carbon dioxide-enrichment on tobacco |
| title_short | Effect of carbon dioxide-enrichment on tobacco |
| title_sort | effect of carbon dioxide enrichment on tobacco |
| url | http://psasir.upm.edu.my/id/eprint/47355/1/Effect%20of%20carbon%20dioxide-enrichment%20on%20tobacco.pdf |
| work_keys_str_mv | AT awangmuhamad effectofcarbondioxideenrichmentontobacco AT ahalimridzwan effectofcarbondioxideenrichmentontobacco |