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Measuring Canopy Gas Exchange Using CAnopy Photosynthesis and Transpiration Systems (CAPTS)

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Photosynthesis

Part of the book series: Methods in Molecular Biology ((MIMB,volume 1770))

Abstract

Canopy photosynthesis (Ac), rather than leaf photosynthesis, is critical to gaining higher biomass production in the field because the daily or seasonal integrals of Ac correlate with the daily or seasonal integrals of biomass production. The canopy photosynthesis and transpiration measurement system (CAPTS) was developed to enable measurement of canopy photosynthetic CO2 uptake, transpiration, and respiration rates. CAPTS continuously records the CO2 concentration, water vapor concentration, air temperature, air pressure, air relative humidity, and photosynthetic photon flux density (PPFD) inside the chamber, which can be used to derive CO2 and H2O fluxes of a canopy covered by the chamber. Here we describe the protocol of using CAPTS to perform experiments on rice (Oryza sativa L.) in paddy field, wheat (Triticum aestivum L.) in upland field, and tobacco (Nicotiana tabacum L.) in pots.

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Acknowledgments

The authors acknowledge funding from the National Natural Science Foundation of China young scientist grant (grant # 31501240) to QS and open funding from State Key Laboratory of Hybrid Rice (grant #2016KF06) to QS, the Chinese Academy of Sciences strategic leading project (XDA08020301) to XZ, and the CAS-CSIRO collaboration grant (GJHZ1501) to XZ.

Author information

Authors and Affiliations

  1. National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China

    Qingfeng Song & Xin-Guang Zhu

  2. State Key Laboratory of Hybrid Rice, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China

    Qingfeng Song

Authors
  1. Qingfeng Song
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  2. Xin-Guang Zhu
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Corresponding author

Correspondence to Xin-Guang Zhu .

Editor information

Editors and Affiliations

  1. Niceville, Florida, USA

    Sarah Covshoff

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Song, Q., Zhu, XG. (2018). Measuring Canopy Gas Exchange Using CAnopy Photosynthesis and Transpiration Systems (CAPTS). In: Covshoff, S. (eds) Photosynthesis. Methods in Molecular Biology, vol 1770. Humana Press, New York, NY. https://doi.org/10.1007/978-1-4939-7786-4_4

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  • DOI: https://doi.org/10.1007/978-1-4939-7786-4_4

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  • Publisher Name: Humana Press, New York, NY

  • Print ISBN: 978-1-4939-7785-7

  • Online ISBN: 978-1-4939-7786-4

  • eBook Packages: Springer Protocols

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