Studies on abscisic acid in apple seeds |
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Authors: | Ryszard Rudnicki |
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Affiliation: | (1) Research Institute of Pomology, Skierniewice, Poland;(2) Department of Plant Physiology, Institute of Pomology, Skierniewice, Poland |
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Abstract: | Summary Abscisic acid (AbA) was found to be present in non-stratified apple seeds. The evidence is based on chromatographic behaviour, fluorescence, UV-spectrum and growth inhibition in a wheat-coleoptile straight-growth test.The AbA level, as measured by this bioassay, falls considerably with progressing stratification; after 3 weeks of after-ripening no AbA could be detected in the seeds.The longer the period of stratification, the higher was the concentration of synthetic AbA necessary to inhibit germination. |
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