Allelopathic influence of aqueous extracts from the leaves of Morus alba L. on seed germination and seedling growth of Cucumis sativus L. and Sinapsis alba L.
Abstract
The aim of the present study was to elucidate impact of the aqueous extracts from leaves of Morus alba L. on germination, growth and photosynthetic activity of Cucumis sativus L. and Sinapis alba L. Plants were grown for 21 days at the temperature 25°C (day) and 18°C (night), within 12/12 hours photoperiod, light intensity 150 µmol·m-2·s-1 and relative humidity 60-70% (day/night). Our experiments proved that allelopathic compounds in aqueous extracts of the leaves M. alba at high concentrations, reduce power and energy of germination. Biometric analysis of seedlings and adult plants grown showed that allelopathic substances have stimulating or inhibiting function depending on the stage of treatment. Moreover, they cause changes in chlorophyll contents and activity of photosystem II (PS II).
References
Barnes J.D., Balaguer L., Manrique E., Elvira S., Davison A.E. 1992. A reappraisal of the use of DMSO for the extraction and determination of chlorophylls a and b in lichens and higher plants. Environm. Exp. Bot. 32: 85–100.
Gniazdowska A., Oracz K., Bogatek R. 2004. Allelopatia-nowe interpretacje oddziaływań między roślinami. Kosmos – Problemy Nauk Biologicznych 52 (2): 207–217. (in Polish)
Janicka-Russak M., Kabała K., Kłobus G., Pacholicki P. 2004. Wpływ wybranych kwasów fenolowych na wzrost i aktywność plazmolemowej H+ATPazy w siewkach ogórków. Zeszyty Problemowe Postępów Nauk Rolniczych 496: 325–330. (in Polish)
Kopcewicz J., Lewak S. 2002. Allelopatia. W ks.: Kopcewicz J., Lewak S. (red.), Fizjologia roślin. PWN, Warszawa: 150–153. (in Polish)
Oleszek W. 2001. Techniki badań allelopatii. Wiadomości Botaniczne 36 (3-4): 17–25. (in Polish)
Rice E.L. 1984. Allelopathy. 2nd ed. Academic Press, New York.
Widera M. 1994. Możliwość wykorzystania zjawisk allelopatii w ochronie roślin. Ochrona Roślin 9: 15–16. (in Polish)
Wójcik-Wojtkowiak D., Politycka B., Weyman-Kaczmarkowa W. 1998. Allelopatia. Wyd. AR, Poznań. (in Polish)
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
The journal is licensed by Creative Commons under BY-NC-ND license. You are welcome and free to share (copy and redistribute the material in any medium or format) all the published materials. You may not use the material for commercial purposes. You must give appropriate credit to all published materials.
The journal allow the author(s) to hold the copyrights and to retain publishing rights without any restrictions. This is also indicated at the bottom of each article.