Uptake and Transport of Cadmium by Perennial Ryegrass from Flowing Solution Culture with a Constant Concentration of Cadmium
| dc.contributor.author | Jarvis, S.C. | |
| dc.contributor.author | Jones, L.H.P. | |
| dc.date.accessioned | 2014-09-22T08:38:21Z | |
| dc.date.available | 2014-09-22T08:38:21Z | |
| dc.date.issued | 1978 | |
| dc.description.abstract | Perennial ryegrass was sown in flowing solution culture at 7, 6, 5 and 4 weeks before the addition of cadmium to the nutrient solution. The concentration of cadmium in solution was held constant at 0.01 ppm for the following 15 days during which period uptake by the 4 sets of plants of different ages was followed by plant analysis at 3-day intervals. During the 15-day period the total uptake per g (dry weight) root remained nearly constant. The cadmium content of the roots was much greater than that of the corresponding shoots and, although older plants contained more cadmium than younger plants, the proportion of the total content retained by the roots was much the same in the 4 sets of plants, i.e. >90 per cent. It is concluded that the roots of ryegrass restrict the transport of cadmium to the shoots. The concentration in the shoots increased only slightly during the 15-day period but to a different extent amongst the 4 sets of plants. These differences reflect differences in growth rate; thus the shoots of the younger sets of plants had lower growth rates and contained correspondingly higher concentrations of cadmium. | en_US |
| dc.identifier.citation | Plant and soil 49,333-342 (1978) | en_US |
| dc.identifier.uri | http://hdl.handle.net/123456789/5962 | |
| dc.language.iso | en | en_US |
| dc.title | Uptake and Transport of Cadmium by Perennial Ryegrass from Flowing Solution Culture with a Constant Concentration of Cadmium | en_US |
| dc.type | Article | en_US |