American Wildcelery (Vallisneria americana):
Ecological Considerations for Restoration
Tables and Figures
Table 7. Crude protein content (dry weight) of Vallisneria americana organs, Navigation Pool 9, Upper Mississippi River, 1980a.
| Date | |||||||||
| Crude protein content | 5-28 | 6-27 | 7-13 | 7-29 | 8-14 | 9-1 | 9-16 | 10-6 | Mean |
| Leaves | |||||||||
| Crude protein (%) | 21.4 | 16.4 | 16.0 | 14.4 | 16.5 | 15.8 | 14.0 | 13.5 | 16.0 |
| Crude protein (% ash-free) | 28.1 | 25.8 | 26.1 | 29.7 | 22.8 | 20.4 | 18.5 | 18.8 | 22.7 |
| Rootstocks | |||||||||
| Crude protein (%) | ---b | 12.8 | 10.4 | 12.8 | 14.1 | 11.3 | 8.0 | 14.0 | 11.9 |
| Crude protein (% ash-free) | 17.4 | 15.3 | 18.2 | 17.6 | 14.0 | 10.5 | 19.1 | 16.0 | |
| Stolons | |||||||||
| Crude protein (%) | 17.1 | 16.0 | 13.2 | 9.4 | 10.6 | 6.9 | 6.3 | 9.4 | 11.1 |
| Crude protein (% ash-free) | 19.5 | 19.3 | 16.9 | 11.7 | 12.8 | 8.2 | 8.1 | 12.5 | 13.6 |
| Fruits | |||||||||
| Crude protein (%) | --- | --- | --- | 12.2c | 11.8 | 12.1 | 10.9 | 11.7 | |
| Crude protein (% ash-free) | --- | --- | --- | 13.4 | 12.8 | 13.2 | 11.9 | 12.8 | |
| Pedicels | |||||||||
| Crude protein (%) | --- | --- | --- | 11.5c | 7.4d | 9.2 | 9.4 | ||
| Crude protein (% ash-free) | --- | --- | --- | 14.4 | 9.4 | 12.1 | 12.0 | ||
aAll values are means of triplicate analyses.
bSpecific organs were not present in biomass.
cSamples from 7-29 and 8-14 were combined for analyses.
dSamples from 9-1 and 9-16 were combined for analyses.
