PROGENY TEST FROM A PITCH PINE-OAK FOREST, DAMAGED BY LOW LEVEL CHRONIC GAMMA RADIATION

PDF Version Also Available for Download.

Description

A forest of Pinus rigida and Quercus sp. surrounding a Co/sup 60/ radiation field were exposed to about 2 to 4.5 r/20 hr day for the pine trees and 3 to 6 r/day for the oak trees during 1960 and 1961. The trees had been subjected to varying radiation doses since l95l. Seeds from cones collected from the pine trees and acorns from the oak trees were planted. Seeds that had matured during 1958. 1959. 1960. and 1961 were available from some-pine trees. All the acorns were formed during 196l. A significant decrease was noted in the germination of seeds ... continued below

Physical Description

Pages: 12

Creation Information

Mergen, F. & Stairs, G.R. January 1, 1961.

Context

This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

Who

People and organizations associated with either the creation of this report or its content.

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

Contact Us

What

Descriptive information to help identify this report. Follow the links below to find similar items on the Digital Library.

Description

A forest of Pinus rigida and Quercus sp. surrounding a Co/sup 60/ radiation field were exposed to about 2 to 4.5 r/20 hr day for the pine trees and 3 to 6 r/day for the oak trees during 1960 and 1961. The trees had been subjected to varying radiation doses since l95l. Seeds from cones collected from the pine trees and acorns from the oak trees were planted. Seeds that had matured during 1958. 1959. 1960. and 1961 were available from some-pine trees. All the acorns were formed during 196l. A significant decrease was noted in the germination of seeds from irradiated pine trees. This decrease in germination of the irradiated seed was associated with the total dose to which individual female parent trees were exposed prior to and during seed formation. There was a significant decrease in survival and rate of growth of oak seedlings from acorns of irradiated trees when compared with controls. The pines were observed to be much more sensitive to radiation than the oaks. Results indicate that a pitch pine forest severely damaged or killed by low-level chronic radiation could regenerate itself once radiation had ceased from seed stored in serotinous cones. Oak regeneration from seed would be dependent upon the timing of exposure in relation to the current flower and seed crop. (C.H.)

Physical Description

Pages: 12

Source

  • Other Information: Orig. Receipt Date: 31-DEC-63

Language

Item Type

Identifier

Unique identifying numbers for this report in the Digital Library or other systems.

  • Report No.: BNL-6466
  • Grant Number: AT(30-2)-GEN-16
  • DOI: 10.2172/4767600 | External Link
  • Office of Scientific & Technical Information Report Number: 4767600
  • Archival Resource Key: ark:/67531/metadc1035245

Collections

This report is part of the following collection of related materials.

Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

What responsibilities do I have when using this report?

When

Dates and time periods associated with this report.

Creation Date

  • January 1, 1961

Added to The UNT Digital Library

  • Oct. 18, 2017, 7:39 a.m.

Usage Statistics

When was this report last used?

Congratulations! It looks like you are the first person to view this item online.

Interact With This Report

Here are some suggestions for what to do next.

Start Reading

PDF Version Also Available for Download.

Citations, Rights, Re-Use

Mergen, F. & Stairs, G.R. PROGENY TEST FROM A PITCH PINE-OAK FOREST, DAMAGED BY LOW LEVEL CHRONIC GAMMA RADIATION, report, January 1, 1961; United States. (digital.library.unt.edu/ark:/67531/metadc1035245/: accessed November 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.