Main Title |
Growth Changes of Apple Seedlings in Response to Simulated Acid Rain. |
Author |
Forsline, P. L. ;
Dee, R. J. ;
Melious, R. E. ;
|
CORP Author |
New York State Agricultural Experiment Station, Geneva. Dept. of Pomology and Viticulture.;Corvallis Environmental Research Lab., OR. |
Year Published |
1983 |
Report Number |
EPA/600/J-83/330; |
Stock Number |
PB86-164985 |
Additional Subjects |
Growth ;
Apple trees ;
Air pollution ;
Water pollution ;
Injuries ;
Foliage ;
pH ;
Inhibitors ;
Leaves(Botany) ;
Greenhouses ;
Sensitivity ;
Comparison ;
Photosynthesis ;
Reprints ;
Acid rain ;
Water pollution effects(Plants) ;
Air pollution effects(Plants)
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB86-164985 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
8p |
Abstract |
In a greenhouse experiment, Malus hupehensis seedlings were treated weekly with simulated acid rain solutions ranging from pH 2.25 to pH 7.0. Necrotic lesions developed on leaves at pH 2.25 and pH 2.50 immediately after the first application at the 8-node stage. Following the 9th weekly application on seedlings with 23 to 26 nodes, lesions developed at pH levels up to 3.25. At final destructive harvest, 20% of the leaf area at pH 2.25 and 8% of the leaf area at pH 2.50 was injures. Significant growth reduction occured at these 2 pH levels. Regression analysis indicated extensive growth inhibition at pH 3.0, no growth inhibition around pH 3.5, some inhibition between pH 4.5 and pH 5.6, and normal growth at pH 7.0 in comparison to the unsprayed control. Growth was negatively correlated with lesion formation at 3 destructive harvest dates. |
Supplementary Notes |
Pub. in Jnl. of the American Society for Horticultural Science 108, n2 p202-207 Feb 83. Sponsored by Corvallis Environmental Research Lab., OR. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Growth Changes of Apple Seedlings in Response to Simulated Acid Rain. |
PUB Date Free Form |
c1983 |
Category Codes |
2D; 68A; 68D; 98D |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/02 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
612916498 |
Origin |
NTIS |
Type |
CAT |