Sökning: L773:0006 3134 OR L773:1573 8264 >
Effects of pH and n...
Effects of pH and nitrogen on cadmium uptake in potato
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- Larsson Jönsson, Helene (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Biosystem och teknologi, Box 86,Department of Biosystems and Technology (VH), general
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- Asp, Håkan (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Biosystem och teknologi, Box 86,Department of Biosystems and Technology (VH), general
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(creator_code:org_t)
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- Institute of Experimental Botany, 2013
- 2013
- Engelska.
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Ingår i: Biologia Plantarum. - : Institute of Experimental Botany. - 0006-3134 .- 1573-8264. ; 57, s. 788-792
- Relaterad länk:
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https://res.slu.se/i...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- This study investigated the effects of pH and nitrogen form and concentration on cadmium (Cd) uptake by potato (Solanum tuberosum L.) grown in hydroponic culture. Potato plants grown in a pH-buffered nutrient solution for 10 d were exposed for 24 h to 25 nM CdCl2 labelled with Cd-109. Plants showed a significantly higher Cd uptake and accumulation at pH 6.5 than at pH 4.5 and 5.5. Nitrogen supplied as nitrate (NO3 (-)) generally resulted in a higher Cd uptake and accumulation than N supplied as ammonium (NH4 (+)). This effect was most pronounced at pH 6.5. The N concentration increasing from 6.5 to 26 mM resulted in a decreased Cd influx when either NO3 (-) or NH4 (+) was used. Cd translocation to the shoot was increased when NO3 (-) was used as the sole N source. In conclusion, pH had a strong influence on Cd uptake by roots and N form is especially important for Cd translocation within the potato plant.
Ämnesord
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Jordbruksvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Agricultural Science (hsv//eng)
Publikations- och innehållstyp
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- art (ämneskategori)
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