at Google ScholarTitle data
Widmann, K. ; Gebauer, Gerhard ; Rehder, H. ; Ziegler, H.:
Biomass production and nitrogen contents of the CAM plants "Kalanchoe daigremontiana" and "K. tubiflora" in cultures with different nitrogen and water supply.
In: Oecologia.
Vol. 82
(1990)
.
- pp. 478-483.
ISSN 1432-1939
DOI: https://doi.org/10.1007/BF00319789
Abstract in another language
Two CAM plant species (Kalanchoe daigremontiana and K. tubiflora) were cultivated in pure cultures with two different levels of nitrogen and water supply. A comparison of the plant dry weight showed that the productivity was severely reduced under low nitrogen or/and water conditions. Additionally the proportion of the different organs contributing to the total biomass, and thus the ratio of root/shoot dry weight shifted substantially. At the same time the production of leaf buds in ratio to leaf biomass was increased. Concentrations of organic nitrogen and nitrate in the shoots were drastically reduced under low nitrogen or/and water conditions, but organic nitrogen concentration in the roots remained relatively high. The leaf conductance over a day was investigated only for K. daigremontiana, and decreased with reduced water and nitrogen supply. The results indicate that CAM plants do not have the predicted high nitrogen use efficiency. Under environmental stress they change from biomass production towards provisions for life preservation.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Additional notes: | BAYCEER25963 |
| Institutions of the University: | Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Former Professors Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Former Professors > Chair Plant Ecology - Univ.-Prof. John D. Tenhunen, Ph.D. Research Institutions > Central research institutes > Bayreuth Center of Ecology and Environmental Research- BayCEER Faculties Faculties > Faculty of Biology, Chemistry and Earth Sciences Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology Research Institutions Research Institutions > Central research institutes |
| Result of work at the UBT: | Yes |
| DDC Subjects: | 500 Science |
| Date Deposited: | 20 Nov 2015 07:29 |
| Last Modified: | 14 Dec 2023 08:02 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/22921 |