2004
DOI: 10.1626/pps.7.427
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Hydrogen Stable Isotope Analysis of Water Acquisition Ability of Deep Roots and Hydraulic Lift in Sixteen Food Crop Species

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Cited by 36 publications
(34 citation statements)
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“…The deuterated water was poured to the soil surface with a measuring cylinder. About 15 h after the application of the deuterated water, xylem sap from the labeled plants was collected following the method of Zegada-Lizarazu and Iijima (2004). The deuterium abundances in xylem sap were measured by mass spectrometry (DELTA plus , Finnigan Mat Instruments, Inc., Germany).…”
Section: Deuterium Labelingmentioning
confidence: 99%
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“…The deuterated water was poured to the soil surface with a measuring cylinder. About 15 h after the application of the deuterated water, xylem sap from the labeled plants was collected following the method of Zegada-Lizarazu and Iijima (2004). The deuterium abundances in xylem sap were measured by mass spectrometry (DELTA plus , Finnigan Mat Instruments, Inc., Germany).…”
Section: Deuterium Labelingmentioning
confidence: 99%
“…These values were converted into the concentration of deuterated water (atom % excess) and used to determine the water sources of intercropped and monocropped plants. Further details of the procedures for the determination of deuterium abundances are given in Zegada-Lizarazu and Iijima (2004). The application of heavy water was regarded as recent rainfall or recently irrigated water.…”
Section: Deuterium Labelingmentioning
confidence: 99%
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“…In pearl millet, root elongation in deep soil layers has also been investigated in semiarid environments (Sivakumar and Salaam, 1994;Zaongo et al, 1994;Bruck et al, 2003); however, the function of deep roots, such as water uptake, is not well documented. In our previous investigation, the deuterium labelling of deep soil water provided evidence that fi nger millet, Job's tears, and barnyard millet increased their water extraction from deep wet layers when topsoil was subjected to drought stress, but common millet, pearl millet, and foxtail millet did not (Zegada-Lizarazu and Iijima, 2004). Further study on the deep-water uptake ability of pearl millet is required to elucidate the drought tolerance of pearl millet.…”
mentioning
confidence: 98%
“…The enrichment of 13 C (atom % excess) of the samples was calculated from the atom % of the samples subtracted by natural abundance of 13 C values measured for control soil. For the deuterium analysis, water contained in the soil sample was extracted by centrifugation (Zegada-Lizarazu and Iijima, 2004). The isotopic ratios of deuterium water are presented in standard delta notation (δ D) in parts per thousand (‰) relative to standard (SMOW: Standard Mean Ocean Water) as expressed by the following equation, stated by Araki and Iijima (2005).…”
Section: Rhizodeposition Of Carbon and Water As Affected By Combined mentioning
confidence: 99%