PRIMING AND ENVIRONMENTAL INFLUENCES ON GERMINATION OF TWO WOODY SPECIES

Osmoconditioning was examined as a presowing seed treatment for its influence on germination, rate of germination, and initial seedling root growth in seeds of A morpha fruticosa L. (imbibed for 48 hrs) and Hippophae rhamnoides L. (imbibed for 18 hrs) at 25C. Based on preliminary studies, seeds were...

Full description

Saved in:
Bibliographic Details
Published inHortScience Vol. 28; no. 5; p. 536
Main Authors Davis, Gregory L, Hensley, David L, Wiest, Steven C
Format Journal Article
LanguageEnglish
Published 01.05.1993
Online AccessGet full text

Cover

More Information
Summary:Osmoconditioning was examined as a presowing seed treatment for its influence on germination, rate of germination, and initial seedling root growth in seeds of A morpha fruticosa L. (imbibed for 48 hrs) and Hippophae rhamnoides L. (imbibed for 18 hrs) at 25C. Based on preliminary studies, seeds were imbibed in one of five osmotic solutions (0, -0.2, -0.7, -1.5, or -3.0 MPa) prepared with polyethylene glycol-8000. Seeds were then sown in test tubes containing plugs of Oasis growing medium saturated with osmotic solutions of no drought (0 MPa) or drought (-1.0 MPa) conditions at 15-35C. Root growth was measured with an image analysis system. Total root growth per seedling was less for both species in drought conditions regardless of temperature. Presowing treatments did not produce large differences in germination or rate of germination in either species.
ISSN:0018-5345
2327-9834
DOI:10.21273/HORTSCI.28.5.536f