Osmotic Relations of Some Plants of the Northern Marshall Islands
Date
1991-01
Authors
Contributor
Advisor
Department
Instructor
Depositor
Speaker
Researcher
Consultant
Interviewer
Narrator
Transcriber
Annotator
Journal Title
Journal ISSN
Volume Title
Publisher
University of Hawai'i Press
Volume
Number/Issue
Starting Page
Ending Page
Alternative Title
Abstract
Osmotic relations of several strand species were investigated by
determining osmotic potentials and sodium contents of leaf samples collected
in the field, by measuring the electrical conductivity of groundwaters and
soil solutions, and by growing seedlings in the greenhouse in culture solutions
with varying levels of added salt. Mean of the field-collected leaves ranged
from - 1.9 to - 3.1 M Pascals, compared with that of seawater at - 2.7 M Pa.
Sodium contents of the leaves were high, commonly being 1 to 3% of the dry
weight. Groundwaters mostly ranged in electrical conductivity from 16 to 50
mmhos/cm (equal to about 0.86 to 2.7 M Pa). In culture solutions, seedlings
of four shrubby species (Cordia subcordata Lam., Guettarda speciosa L., Scaevola
sericea Vahl, and Tournefortia argentea L.f.) and a native variety of squash
(Cucurbita pepo L.) all grew well at solution of -0.28 M Pa, but were
depressed to about 50% yield at -0.42 M Pa . The woody species declined to
about 10-20% yield at - 1.4 M Pa, and grew only a little at - 2.8 M Pa (a
solution equal in to that of seawater).
Description
Keywords
Citation
Walker RB, Gessel SP. 1991. Osmotic relations of some plants of the northern Marshall Islands. Pac Sci 45(1): 55-62.
Extent
Format
Geographic Location
Time Period
Related To
Related To (URI)
Table of Contents
Rights
Rights Holder
Local Contexts
Collections
Email libraryada-l@lists.hawaii.edu if you need this content in ADA-compliant format.