1992
DOI: 10.1080/01904169209364484
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Study on ammonium tolerance of cucumber plants

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Cited by 13 publications
(8 citation statements)
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“…In the current study, the Mn concentrations in both leaves and stems were reduced by approximately a factor of two, from a NH + 4 /NO − 3 ratio of 0/100 to 80/20, whereas there was no difference in the roots. Similar results were obtained by Zornoza and Carpena (1992) on cucumber (Cucumis sativus), by Wang and Below (1998) on two different wheat genotypes, by Bernardoet al (1984) on sorghum, and by Kim et al (2002) on pecan (Carya illinoinensis). Among the micronutrients Fe, Mn, Zn, Cu and B that were included in the study by Wang and Below (1998) and Zornoza and Carpena (1992), NH + 4 had the strongest antagonistic effects on shoot concentrations of Mn and Zn.…”
Section: Discussionsupporting
confidence: 87%
See 1 more Smart Citation
“…In the current study, the Mn concentrations in both leaves and stems were reduced by approximately a factor of two, from a NH + 4 /NO − 3 ratio of 0/100 to 80/20, whereas there was no difference in the roots. Similar results were obtained by Zornoza and Carpena (1992) on cucumber (Cucumis sativus), by Wang and Below (1998) on two different wheat genotypes, by Bernardoet al (1984) on sorghum, and by Kim et al (2002) on pecan (Carya illinoinensis). Among the micronutrients Fe, Mn, Zn, Cu and B that were included in the study by Wang and Below (1998) and Zornoza and Carpena (1992), NH + 4 had the strongest antagonistic effects on shoot concentrations of Mn and Zn.…”
Section: Discussionsupporting
confidence: 87%
“…Similar results were obtained by Zornoza and Carpena (1992) on cucumber (Cucumis sativus), by Wang and Below (1998) on two different wheat genotypes, by Bernardoet al (1984) on sorghum, and by Kim et al (2002) on pecan (Carya illinoinensis). Among the micronutrients Fe, Mn, Zn, Cu and B that were included in the study by Wang and Below (1998) and Zornoza and Carpena (1992), NH + 4 had the strongest antagonistic effects on shoot concentrations of Mn and Zn. Growth stimulation of cereals receiving mixtures of NO − 3 and NH + 4 instead of the two nitrogen forms separately, have previously been reported by several groups including Cox and Reisenauer (1973), Gentry et al (1989), Lewis and Chadwick (1983), and Wang and Below (1998).…”
Section: Discussionsupporting
confidence: 87%
“…The measured NH 4 + concentrations were not a result of excessive N supplies, as even plants grown under the lowest N‐treatment contained NH 4 + . Furthermore, the measured NH 4 + concentrations were not due to analytical errors (see below) which may have been the case in studies based on colorimetric NH 4 + measurements by the Berthelot method ( Zornoza and Carpena 1992; Engels and Marschner 1993). Other studies employing NMR and micro‐diffusion techniques support our findings that some plant species really do transport and accumulate NH 4 + ( Shelp 1987; Lee and Ratcliffe 1991).…”
Section: Discussionmentioning
confidence: 89%
“…Other studies have shown variable results for the effect of N form on xylem pH, for example higher xylem pH with NO 3 -(pH 5.37) compared to NH 4 + (pH 5.03) in the non-accumulator Ricinus communis (castor bean) (Allen and Raven 1987), and no difference with N form in Cucumis sativus (cucumber) or Brassica oleraceae var. italica (broccoli) (Shelp 1987;Zornoza and Carpena 1992).…”
Section: Xylem Sap Phmentioning
confidence: 99%