Cadmiumtoxizität bei Weinreben
DOI:
https://doi.org/10.5073/vitis.1985.24.88-96Keywords:
cadmium, toxicity, iron, chlorosis, metabolism, symptoma tologyAbstract
Toxicity of cadmium to grapevine
Cultings of the cv. Riesling were cultivated in nutrient solutions with different amounts of cadmium.
- Cadmium inhibited the growth of shoot and of leaf area and produced chlorosis, necroses and leaf deformations. Old leaves showed no symptoms at all, but with high cadmium levels leaf fall occurred.
- The threshold of cadmium damage was beneath a level of 0.1 ppm Cd of the nutrient solution.
- The dry matter production of the plants was reduced by cadmium: 0.66 mg Cd/l of nutrient solution caused an inhibition of 50 %.
- Cadmium reduced the chlorophyll content of the leaves.
- The transport of iron from roots to leaves was inhibited nearly complete ly by medium to high levels of cadmium {1.0, 3.0, 10.0 ppm). Iron was accumulated in the roots. Thus cadmium may have caused an iron deficiency chloros is in grapevines.
- The uptake of cadmium showed a clear dependence on the amount of cadmium in the nutrient solution . Within the plants, decreasing amounts of cadmium were found following the pattern roots - stem - leaves.
Downloads
Published
Issue
Section
License
The content of VITIS is published under a Creative Commons Attribution 4.0 license. Any user is free to share and adapt (remix, transform, build upon) the content as long as the original publication is attributed (authors, title, year, journal, issue, pages) and any changes to the original are clearly labeled. We do not prohibit or charge a fee for reuse of published content. The use of general descriptive names, trade names, trademarks, and so forth in any publication herein, even if not specifically indicated, does not imply that these names are not protected by the relevant laws and regulations. The submitting author agrees to these terms on behalf of all co-authors when submitting a manuscript. Please be aware that this license cannot be revoked. All authors retain the copyright on their work and are able to enter into separate, additional contractual arrangements.