Modern Phytomorphology

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The morphological changes of Phaseolus vulgaris L. exposed to the aqueous extracts of the leaves of Juglans regia L.

Abstract

Katarzyna Możdżeń, Jakub Oliwa

To date the allelopathic interactions between plants didn’t explained, whether some substances are produced by plants to counteract competition or these substances are randomly generated and they are transferred from generation to generation. For that reason an attempt was made to investigate the influence of the aqueous extracts of dried leaves of walnut (Juglans regia L.) at concentrations of 3, 5 and 10% on the germination, growth, weight and morphology of bean (Phaseolus vulgaris L. cv. Laurina). The results indicate that increasing concentration of extract has a stimulating effect on seeds germination in comparison to the control. Extracts at a concentration of 3% and 10% inhibited the growth of the majority of organs and caused reduction of their fresh and dry weight. Whereas the extract at a concentration of 5% stimulated plant growth.

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