ALLELOPATHIC EFFECTS OF OLIVE OIL MILL WASTEWATER (OMW) ON SAINFOIN (Onobrychis viciifolia Scop.) GERMINATION

Abstract

In this study, the olive mill wastewater at different concentrations (control, 1/1, 1/2, 1/3, 1/4 (OMW/distilled water) and undiluted OMW) was used to determine the impact to the sainfoin seed germination. In the study, the germination ratio and mean germination time showed statistically significant differences in terms of levels according to treatments, sainfoin populations and sainfoin populations x treatments interaction (p<0.01), germination ratio varied at 5-70 % and the highest value (70 %) was obtained from 1/2 (OMW/distilled water) application in true sainfoin seeds. In general, the OMW (added distilled water)  treatments were increased germination ratio. The lowest germination ratio (11.67 %) was determined in sainfoin seeds collected from Eğirdir location. According to application, the highest germination ratio was obtained from 1/1 and 1/2 (OMW/distilled water) applications. In experiment, mean germination time varied in 5.0-11.0 days. Generally, high OMW concentrations (except undiluted OMW) extended mean germination time in sainfoin seeds. In all OMW applications, it shortened in ES seeds, but not in TS seeds. Additionally, germination time weren’t effected as positive from OMW applications (except undiluted OMW) in TS seeds. The longest mean germination time (9.0 day) was in ES seeds. According to treatments, germination in the shortest time occurred in 1/4 (OWM/distilled water) treatment. As a result, olive oil wastewater (OMW) mixed to irrigation water in certain dozes may increase seed germination and can be used as fertilizer in agriculture.

Keywords

• Allelopathic,germination,olive mill wastewater

References

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