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Dynamics of organic matters in the root-rhizoplane-soil system of maize [Zea mays], 1: A simple and rapid method for measuring root respiration

Abstract

In the analysis of dynamics of organic matter in the root-rhizoplane-soil system, it is essential to estimate various kinds of carbon flows in the system separately. Since a simple and rapid method for measuring root respiration was needed for this purpose, the authors developed the following method. A plastic syringe is used as the chamber. Sample roots are put into a syringe, in which the air is replaced with air of known CO{sub 2} concentration and the syringe is kept at a constant temperature for a certain time. A volume of the air in the syringe is injected into the flow of N{sub 2} gas in the tube which is connected to an infrared gas analyzer. The CO{sub 2} concentration in the syringe is directly related to the reading of the analyzer. From the difference of the CO{sub 2} concentration in the syringe before and after the incubation, the respiration rate of the roots is calculated. The details of the procedure were determined by the results of experiments regarding the effects of factors concerned. (author)
Authors:
Okada, K.; [1]  Kumura, A.
  1. Tokyo Univ., Tokyo (Japan)
Publication Date:
Mar 15, 1990
Product Type:
Journal Article
Resource Relation:
Journal Name: Nippon Sakumotsu Gakkai Kiji; Journal Volume: 59; Journal Issue: 1; Other Information: FAO/AGRIS record; ARN: JP9401291; Country of input: International Atomic Energy Agency (IAEA)
Subject:
60 APPLIED LIFE SCIENCES; ABUNDANCE; AIR; CARBON; CARBON DIOXIDE; CONCENTRATION RATIO; ECOLOGICAL CONCENTRATION; INFRARED RADIATION; MAIZE; ORGANIC MATTER; RESPIRATION; ROOTS; SOILS
OSTI ID:
22360720
Country of Origin:
FAO
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0011-1848; TRN: XF15A1481066014
Availability:
Also available on-line: https://www.jstage.jst.go.jp/article/jcs1927/59/1/59_1_162/_pdf
Submitting Site:
INIS
Size:
page(s) 162-168
Announcement Date:
Jul 22, 2015

Citation Formats

Okada, K., and Kumura, A. Dynamics of organic matters in the root-rhizoplane-soil system of maize [Zea mays], 1: A simple and rapid method for measuring root respiration. FAO: N. p., 1990. Web. doi:10.1626/jcs.59.162.
Okada, K., & Kumura, A. Dynamics of organic matters in the root-rhizoplane-soil system of maize [Zea mays], 1: A simple and rapid method for measuring root respiration. FAO. https://doi.org/10.1626/jcs.59.162
Okada, K., and Kumura, A. 1990. "Dynamics of organic matters in the root-rhizoplane-soil system of maize [Zea mays], 1: A simple and rapid method for measuring root respiration." FAO. https://doi.org/10.1626/jcs.59.162.
@misc{etde_22360720,
title = {Dynamics of organic matters in the root-rhizoplane-soil system of maize [Zea mays], 1: A simple and rapid method for measuring root respiration}
author = {Okada, K., and Kumura, A.}
abstractNote = {In the analysis of dynamics of organic matter in the root-rhizoplane-soil system, it is essential to estimate various kinds of carbon flows in the system separately. Since a simple and rapid method for measuring root respiration was needed for this purpose, the authors developed the following method. A plastic syringe is used as the chamber. Sample roots are put into a syringe, in which the air is replaced with air of known CO{sub 2} concentration and the syringe is kept at a constant temperature for a certain time. A volume of the air in the syringe is injected into the flow of N{sub 2} gas in the tube which is connected to an infrared gas analyzer. The CO{sub 2} concentration in the syringe is directly related to the reading of the analyzer. From the difference of the CO{sub 2} concentration in the syringe before and after the incubation, the respiration rate of the roots is calculated. The details of the procedure were determined by the results of experiments regarding the effects of factors concerned. (author)}
doi = {10.1626/jcs.59.162}
journal = []
issue = {1}
volume = {59}
journal type = {AC}
place = {FAO}
year = {1990}
month = {Mar}
}