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https://hdl.handle.net/2440/94770
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dc.contributor.author | Foyjunnessa, F. | - |
dc.contributor.author | McNeill, A. | - |
dc.contributor.author | Doolette, A. | - |
dc.contributor.author | Mason, S. | - |
dc.contributor.author | McLaughlin, M. | - |
dc.date.issued | 2014 | - |
dc.identifier.citation | Plant and Soil: international journal on plant-soil relationships, 2014; 382(1-2):291-299 | - |
dc.identifier.issn | 0032-079X | - |
dc.identifier.issn | 1573-5036 | - |
dc.identifier.uri | http://hdl.handle.net/2440/94770 | - |
dc.description.abstract | Aims Accurate quantification of P accumulated in plant root systems is difficult since fine roots are often not recovered from soil. ³³P-labelling of plant root systems in soil may facilitate estimation of total below-ground P accumulation. Methods Canola (Brassica napus) and lupin (Lupinus angustifolius), grown in sand in sealed pots, were fed 33P-labelled phosphoric acid via the stemusing a wickfeeding technique. Results More ³³P was partitioned to canola roots (51 %) than lupin roots (26 %), although specific activity of roots for the two species was similar (30– 31 kBq ³³Pmg ³¹P⁻¹) since canola roots had higher ³¹P content than lupin roots (4.1 cf 2.3 mg P plant⁻¹). Mean recovery of fed ³³P (250 kBq plant⁻¹) in the whole plant including recovered roots was 84 % 10 days after feeding, and 6 %was sorbed to the wick. Assuming the unrecovered 10 % of ³³P (below the detection limit for soil digestion method used in this study) was within fine roots, then estimated P in unrecovered fine roots represented 15 % of total root system P for canola and 32 % for lupin. Conclusion Wick-feeding ³³P via the stem can effectively label P in roots in situ and facilitate quantitative estimation of total P accumulation by plant root systems | - |
dc.description.statementofresponsibility | Foyjunnessa, Ann McNeill, Ashlea Doolette, Sean Mason & Mike J. McLaughlin | - |
dc.language.iso | en | - |
dc.publisher | Springer | - |
dc.rights | © Springer International Publishing Switzerland 2014 | - |
dc.source.uri | http://dx.doi.org/10.1007/s11104-014-2163-0 | - |
dc.subject | Below-ground P inputs; ³³P in situ stem wick-feeding; ³³P specific activity; Fine roots; Shoot: Root P ratio | - |
dc.title | In situ ³³P-labelling of canola and lupin to estimate total phosphorus accumulation in the root system | - |
dc.title.alternative | In situ (33)P-labelling of canola and lupin to estimate total phosphorus accumulation in the root system | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1007/s11104-014-2163-0 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | McNeill, A. [0000-0002-6060-4661] | - |
dc.identifier.orcid | Doolette, A. [0000-0002-7504-9920] | - |
dc.identifier.orcid | McLaughlin, M. [0000-0001-6796-4144] | - |
Appears in Collections: | Agriculture, Food and Wine publications Aurora harvest 7 |
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