| Main Title |
Intraspecific Variation in Sensitivity to UV-B Radiation in Rice. |
| Author |
Barnes, P. W. ;
Maggard, S. ;
Holman, S. R. ;
Vergara, B. S. ;
|
| CORP Author |
ManTech Environmental Technology, Inc., Corvallis, OR. Environmental Research Lab. ;Southwest Texas State Univ., San Marcos. Dept. of Biology. ;International Rice Research Inst., Los Banos, Laguna (Philippines).;Corvallis Environmental Research Lab., OR.;Department of Agriculture, Washington, DC. |
| Publisher |
1993 |
| Year Published |
1993 |
| Report Number |
EPA-68-C8-0006, USDA-92-37100-7763; EPA/600/J-93/515; |
| Stock Number |
PB94-135084 |
| Additional Subjects |
Rice ;
Plant growth ;
Ultraviolet radiation ;
Production ;
Ozone ;
Stratosphere ;
Depletion ;
Morphology ;
Tropical regions ;
Changes ;
Greenhouses ;
Philippines ;
Toluances(Physiology) ;
Reprints ;
Ultraviolet B radiation
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB94-135084 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
6p |
| Abstract |
Twenty-two cultivars of rice (Oryza sativa L.) from diverse origins were grown under greenhouse conditions and exposed to ultraviolet-B radiation (UV-B; 280-320 nm) simulating a 5% reduction in stratospheric ozone in spring for the Philippines (14 deg N lat.) to evaluate growth and morphological responses to UV-B. In comparison to controls that received no UV-B, plants exposed to UV-B exhibited significantly reduced dry matter production (total plant and shoot), shoot height, leaf blade length and total leaf area, increased number of tillers, and greater weight fractions in leaf blades and roots. For most cultivars, the relative effects of UV-B on shoot morphology were greater than the effects on biomass production. The direction of the UV-B effects were generally similar for all cultivars, however, there were significant differences among cultivars in the magnitude of the UV-B-induced changes. |
| Supplementary Notes |
Pub. in Crop Science, v33 n5 p1041-1046 1993. Prepared in cooperation with Southwest Texas State Univ., San Marcos. Dept. of Biology, and International Rice Research Inst., Los Banos, Laguna (Philippines). Sponsored by Corvallis Environmental Research Lab., OR., and Department of Agriculture, Washington, DC. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Intraspecific Variation in Sensitivity to UV-B Radiation in Rice. |
| Category Codes |
98D |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/02 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
406330689 |
| Origin |
NTIS |
| Type |
CAT |
