| Main Title |
Guide to Aquatic Smartweeds (Polygonum) of the United States. |
| Author |
Mitchel, Richard S. ;
|
| CORP Author |
Virginia Polytechnic Inst., and State Univ., Blacksburg. Resources Research Center. |
| Year Published |
1971 |
| Report Number |
VPI-WRRC-Bull-41; OWRR-A-028-VA; 09151,; A-028-VA(3) |
| Stock Number |
PB-200 260 |
| Additional Subjects |
( Aquatic weeds ;
Identifying) ;
Aquatic plants ;
Plants(Botany) ;
Morphology ;
Taxonomy ;
Ecology ;
Plant physiology ;
Reservoirs ;
Water quality ;
Polygonum ;
Taxonomic keys
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-200 260 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
53p |
| Abstract |
The taxonomic key of identifiable aquatic smartweeds, Polygonum sp, is supplemented by a review of the merits and shortcomings of different members of the genus in water management. The second part of the bulletin reports the results of submergence trials conducted in temperature-programmed environmental chambers. The amphibious responses of Polygonum populations were appraised on the basis of mortality of shoots and leaves, and morphology and anotomy of plants. P. amphibium, var stipulaceum, and P. densiflorum showed the greatest amphibious response. A study of the plagiotrophy or prostrateness of P. amphibium varieties indicated that this property is partially genetically controlled and partly a function of the light-inhibited negative geotropism. (WRSIC abstract) |
| PUB Date Free Form |
Mar 71, |
| Category Codes |
6C; 57C |
| NTIS Prices |
PC A04 MF A01 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
326518914 |
| Origin |
NTIS |
| Type |
CAT |
