Title: The effect of storage temperature and duration on northern red oak acorn viability and vigour
Author: Noland, Thomas L.; Morneault, Andree E.; Dey, Daniel C.; Deugo, Dave.;
Source: The Forestry Chronicle. 89(6): 769-776.
Publication Series: Scientific Journal (JRNL)
Description: Three separate collections of Ontario sources of northern red oak (Quercus rubra L.) acorns were made to determine the effects of long-term cold storage at +2°C, -1°C, and -2°C on their viability and vigour. We measured acorn moisture content, percent germination during storage, speed of germination and total germination values, root regrowth of seeds that germinated in storage, incidence of fungal contamination, and condition of ungerminated acorns. Viability and vigour peaked six to 12 months after acorns were placed in storage, but decreased with continued storage. After 18 months in storage, ≥60% of the acorns germinated in four of the five seedlots tested and, after 30 months in storage, ≥53% of the acorns germinated in three of the five seedlots tested. Acorn viability was only minimally affected by storage temperature; however, since temperatures above -2°C allowed acorns to germinate during storage, the preferred long-term storage temperature was -2°C. Our results suggest that, assuming proper storage conditions, most red oak seedlots will maintain relatively high germination levels when stored at -2°C for 18 months. Seedlots with particularly high initial germination and vigour may be successfully stored for up to 30 months.
Keywords: germination, recalcitrant seed storage, seed storage temperature, seed storage longevity, Quercus rubra
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
- This publication may be available in hard copy. Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact Sharon Hobrla, email@example.com if you notice any errors which make this publication unusable.
XML: View XML
Noland,Thomas L.; Morneault, Andree E.; Dey, Daniel C.; Deugo,Dave. 2013. The effect of storage temperature and duration on northern red oak acorn viability and vigour. The Forestry Chronicle. 89(6): 769-776.
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility