Acta Univ. Agric. Silvic. Mendelianae Brun. 2013, 61(3), 677-681 | DOI: 10.11118/actaun201361030677

The influence of water extracts of selected turfgrass species on germination and initial growth of Poa annua L.

Peter Kovár, Ľuboš Vozár, Ján Jančovič
Department of grassland ecosystems and forage crops, Faculty of agrobiology and food resources, Slovak university of agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovak Republic

The effect of Lolium perenne L., Festuca rubra L., Festuca arundinacea Schreb., Poa pratensis L. and Poa annua L. aqueous extracts on germination rate and total germinability of Poa annua L. seeds and length of Poa annua L. leaves and roots was studied in a laboratory experiment. Germination of seeds was conducted in the growth chamber at the light and temperature regime - day/night - 12/12 hours, 23/15˚C, rh 70 %, for 42 days. Extracts significantly affected the total germinability and germination rate of Poa annua L. seeds (p = 0.000). The lowest germinability (27.3 ± 7. 1 %) and germination rate (0.7 ± 0.2 seeds per day) had Poa annua L. seeds germinated in Poa pratensis L. aqueous extract. Used extracts (except for Festuca rubra L. extract) had significantly inhibitory effect on length of Poa annua L. roots in comparison with control variant. The positive effect of extract from Lolium perenne L. and Festuca rubra L. (not- significant) and the negative effect of extract from Poa pratensis L. and Poa annua l. (significant) were apparent on length of Poa annua L. leaves.

Keywords: allelopathy, germinability, plants height, roots length
Grants and funding:

This work has been supported by the Excellence Center for Agrobiodiversity Conservation and Benefit project implemented under the Operational Programme Research and Development financed by European Fund for Regional Development.

Received: February 4, 2013; Published: May 23, 2013  Show citation

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Kovár, P., Vozár, Ľ., & Jančovič, J. (2013). The influence of water extracts of selected turfgrass species on germination and initial growth of Poa annua L. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 61(3), 677-681. doi: 10.11118/actaun201361030677
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