Allelopathic effects on the germination of soybean seeds (Glycine max L.Merrill)
DOI:
https://doi.org/10.5433/1679-0359.2005v26n1p5Keywords:
Soybean, Allelopathy, Germination.Abstract
This work had as objective to study the effect of natural substances found in root exsudates of other crops on the gemination of soybean seeds. Two experiments were accomplished. For the first experiment wheat seeds (Triticum aestivum), cale (Triticum sp.), corn (Zea mays), ervilhaca (Vicia sativa), and black oat (Avena strigosa), that were placed to germinate, in paper rolls, in BOD at 25°C. These seeds were discarded and the papers were reused for germination of soybean seeds, using as solution-test root exsudates, and as control distilled water to humidify the paper. For the second experiment, aqueous extract of above-ground part of black oat (Avena strigosa) was used to humidify the paper where the soy seeds were placed to germinate, in BOD at 25oC. Allelopatic effects alelopáticos of the root exsudates were verified on the percentage of germination of the soybean seeds, but it was not verified effect on the time and medium speed of germination. It was observed negative interference of black oat extract on the time and medium speed of soybean seeds germination.
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