PLAUSIBLE MECHANISMS BY WHICH ULTRASONIC WAVES AFFECT SEEDS
Abstract
To study the effect of sonication on the seed germination percentage and rate as well as the cell area of barley (Hordeum vulgare L.) a laboratorial experiment was performed as Completely Randomized Design (CRD) with 3 replications. The results indicated that the ultrasonic waves affect the seed germination, germination rate and cell area significantly (at 0.05). The results of the mean comparison tests (LSD, 0.05) showed that the highest germination percentage (100 %), germination rate and cell area (1370.71 µ2 ) is achieved through 15 minutes exposure to ultrasonic waves. It is concluded that weakening the seed’s cell wall rigidity by sonication results in more and faster water imbibition by the cells and improved germination.
Keywords
cell area; barley; germination; seed dormancy breaking; sonication
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Department of Water and Soil, Faculty of Agriculture, Shahrood University of Technology, Shahrood, Iran Iran, Islamic Republic of
Faculty of Chemistry, Islamic Azad University, Tehran, Iran Iran, Islamic Republic of
Department of Horticultural Sciences, Faculty of Agriculture, Shahrood University of Technology, Shahrood, Iran Iran, Islamic Republic of
F Department of Crop Sciences, Faculty of Agricultural Sciences, Georg-August University of Göttingen, Büsgenweg 5, 37077 Göttingen, Germany; Faculty of Organic Agricultural Sciences, University of Kassel, Nordbahnhofstraße, 37213 Witzenhausen, Germany Germany
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