Impact of sunflower and mustard leave extracts on the growth and dark respiration of mustard seedlings |
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| Authors: | Andrzej Skoczowski Magdalena Troć Anna Baran Małgorzata Baranska |
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| Institution: | 1.The Franciszek Górski Institute of Plant Physiology,Polish Academy of Sciences,Krakow,Poland;2.Faculty of Chemistry,Jagiellonian University,Krakow,Poland;3.Institute of Biology,Pedagogical University,Krakow,Poland |
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| Abstract: | The subject of the study was investigation of impact of extracts from sunflower and mustard leaves on growth of mustard seedlings.
Seeds of mustard were germinated on water and then grew on aqueous extracts from sunflower or mustard leaves. The specific
thermal power during seedlings growth was measured by isothermal calorimetry. Changes in the chemical composition stimulated
by extracts were measured by FT-Raman spectroscopy and analyzed with the support of the cluster analysis. The heat production
rate during growth of seedlings was related to the type of extracts. Crude sunflower and mustard extracts strongly inhibited
the growth of seedlings when compared to non-treated control. FT-Raman spectroscopy confirms that allelopathic compounds have
the greatest influence on the metabolism of fatty acids of mustard cotyledons. The obtained results indicate that sunflower
and mustard extracts have varied impact on growth and heat production rate of mustard seedlings. |
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