| Main Title |
A Flow-through testing procedure with duckweed (Lemna minor L.) / |
| Author |
Walbridge, Charles T.
|
| CORP Author |
Environmental Research Lab.-Duluth, Minn. |
| Publisher |
Environmental Research Laboratory--Duluth, |
| Year Published |
1977 |
| Report Number |
EPA; EPA 600/3-77-108 |
| Stock Number |
PB-272 586 |
| OCLC Number |
28372599 |
| Subjects |
Duckweeds ;
Lemnaceae
|
| Additional Subjects |
Aquatic weeds ;
Water pollution ;
Water quality ;
Indicator species ;
Bioassay ;
Toxicity ;
Nutrition ;
Growth ;
Plant physiology ;
Mortality ;
Ecology ;
Aquatic plants ;
Lemna minor ;
Duckweed ;
Bioindicators ;
Laboratory experiments
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 600-3-77-108 |
c.1 |
Headquarters Library/Washington,DC |
01/29/2014 |
| ELBD ARCHIVE |
EPA 600-3-77-108 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ELDD |
EPA-600/3-77-108 |
|
CCTE/GLTED Library/Duluth,MN |
10/25/2002 |
| ESAD |
EPA 600-3-77-108 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
| NTIS |
PB-272 586 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
vi, 20 pages : illustrations ; 28 cm |
| Abstract |
Lemna minor is one of the smallest flowering plants. Because of its floating habit, ease of culture, and small size it is well adapted for laboratory investigations. Procedures for flow-through tests were developed. Testing procedures were developed with this apparatus. By using the techniques described here, the effects of nutrients or toxicants, singly or in combination, can be determined in several concentrations with several replicates of each. Responses which can be measured include changes in growth rate, changes in death rate, changes in timing of division of colonies, color changes, changes in variability, and modification of the flowering response. Emphasis here is on changes in growth rate determined either by daily frond counts or by final frond numbers. |
| Notes |
"EPA-600/3-77-108." "September 1977." Includes bibliographical references (pages 17-19). |
| Place Published |
Duluth, Minn. |
| Title Ser Add Ent |
United States. Environmental Protection Agency ; EPA-600/3-77-108. |
| PUB Date Free Form |
1977 |
| NTIS Prices |
PC A03/MF A01 |
| BIB Level |
m |
| Medium |
unmediated |
| Content |
text |
| Carrier |
volume |
| Cataloging Source |
OCLC/T |
| OCLC Time Stamp |
20141030095225 |
| Language |
eng |
| SUDOCS Number |
EP 1.23:600/3-77-108 |
| Origin |
OCLC |
| Type |
MERGE |
| OCLC Rec Leader |
01061cam 2200301Ia 45020 |
