Osmotic Pressure Influence in Germination Tests for Antibiosis
- 6 May 1966
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 152 (3723), 771-773
- https://doi.org/10.1126/science.152.3723.771
Abstract
A common test for the presence of toxic organic substances in plant tissues, and therefore of the potential role of antibiosis (specifically allelopathy) in native plant cozmmunities, has been to apply a water extract of the tissues in germination tests of cultivated annuals. The observed osmotic pressure of the extracts can be high, and sucrose solutions of similar osmotic pressure result in a depression of germnination and early development. Thus in the aforementioned type of test, extracts must be diluted to an osmotic pressure no greater than 0.5 atmopheres.This publication has 20 references indexed in Scilit:
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