Inhibitory Effect of Some Weed Aqueous Extract on Germination and Seedling Growth of Bread Wheat Triticum aestivum L.
2016
Tharwat Ibrahim | Ghassan Ibrahim
The present investigation was carried out in the Weed Biological Control Section at the Biological Control Research and Studies Centre, Faculty of Agriculture, Damascus University (Syria) to evaluate the inhibitory effects of some weed species commonly found in wheat species on germination and seedling growth of wheat (Triticum aestivum L.) variety Cham10. Aqueous extracts of weeds (Avena sterilis L., Convolvulus arvensis L., Diplotaxis erucoides L. Lolium perenne L. and Sonchus oleraceus L.) were made from leaf, stem and roots separately at 5, 10, 15, 20, 25% concentrations and the trail was designed in (CRD) completely randomized design with three replicates.The results showed that the aqueous extracts of all tested weeds caused inhibitory effects on seed germination, seedling length and seedling dry weight of wheat, however this effect increased with increasing the concentration of weed extracts. Leaf extracts had the highest inhibitory effect on studied traits of wheat followed by the stem and root extracts, and this clearly indicated the negative effect of weed residues in the field which should be removed before sowing the next crop.
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