Plant Protect. Sci., 2013, 49(4):193-197 | DOI: 10.17221/18/2013-PPS

Fatal germination in barnyardgrass (Echinochloa crus-galli)Original Paper

Zdenka MARTINKOVÁ1, Alois HONĚK2
1 Department of Plant Ecology and Weed Science, Division of Agroecology and
2 Department of Entomology, Division of Plant Health, Crop Research Institute, Prague, Czech Republic

Seeds of weeds buried by tillage may germinate at depths from which seedlings cannot establish. In barnyardgrass (Echinochloa crus-galli) we investigated how fatal germination was influenced by the depth and time of seed burial. The proportion of germinated seeds decreased with burial depth to 0-20% at ≥ 0.1 m depth which is fatal for seedling establishment. The percentage of fatal germination was greater for the seeds buried during the spring season than during autumn. Germination was influenced by seed pre-treatment, after ripening or stratification. Spring ploughing of non-dormant seeds below 0.1 m depth induces fatal germination, decreasing in this way seed bank of barnyardgrass.

Keywords: seedling emergence; soil; temperature; tillage

Published: December 31, 2013  Show citation

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MARTINKOVÁ Z, HONĚK A. Fatal germination in barnyardgrass (Echinochloa crus-galli). Plant Protect. Sci. 2013;49(4):193-197. doi: 10.17221/18/2013-PPS.
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