Real-time detection of root zone-CO<inf>2</inf>and its potential for irrigation scheduling
© 2015 by the authors. The suitability of root zone-CO2measurements (WR-CO2) for irrigation scheduling was investigated and evaluated. The basic assumption was that plants reduce root respiration as a reaction to water deficit. A study with apple trees proved that measured WR-CO2originates in large...
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| Main Authors: | , , , |
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| Format: | Journal |
| Published: |
2018
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| Subjects: | |
| Online Access: | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84940865615&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/54038 |
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| Institution: | Chiang Mai University |
| Summary: | © 2015 by the authors. The suitability of root zone-CO2measurements (WR-CO2) for irrigation scheduling was investigated and evaluated. The basic assumption was that plants reduce root respiration as a reaction to water deficit. A study with apple trees proved that measured WR-CO2originates in large parts (56-72 %) from plant specific CO2production (mainly root respiration). Furthermore, WR-CO2reacts to irrigation as well as correlates with soil water content. Since WR-CO2variations were also reflected in changes of plant water status, basic potential of WR-CO2for irrigation demand assessment of the investigated apple trees is apparent. The transferability to other crops will be investigated. |
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