Abstract
TwoChenopodium species (C. album L.,C. suecicum J. Murr) were grown under field conditions with sugar beet to assess the weed-caused crop loss, and with spring wheat in a replacement series experiment. The weeds strongly reduced the growth of sugar beet. Dew's competition indexes for the regressions of sugar beet yield on weed density were 6.81 and 3.78 forC. suecicum andC. album respectively. On the other hand, the yield of spring wheat was not affected by the twoChenopodium species owing to early shading of the weeds by the faster growing crop stand.
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Frantík, T., Kovář, P., Dostálek, J. et al. Interactions of two species of the genusChenopodium with two production plants—Sugar beet and spring wheat. Folia geobot. phytotax. 25, 137–144 (1990). https://doi.org/10.1007/BF02912737
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DOI: https://doi.org/10.1007/BF02912737