THE ALLELOPATHIC EFFECT OF ALLIUM AKAKA S. G. GMELIN EXTRACTS ON GERMINATION OF PORTULACA OLERACEA L. WEED


Bingöl Ö.

II. International Agricultural, Biological & Life Science Conference, Edirne, Türkiye, 1 - 03 Eylül 2020, ss.227

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: Edirne
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.227

Özet

Weeds compete with crop plants resulting with a considerable loss in their productivity. Pulling by hand or physically cutting of weeds were among the traditional methods of weed control. In recent years, herbicides, modern and alternative strategies for weed control have been used. These weed control methods have served to control the weed development and improve the crop productivity. Allelopathy is a biological phenomenon by which an organism produces biochemical that influence the germination, growth, survival, and reproduction of other organisms. Allelopathic interactions are important factors in determining species distribution and abundance within plant communities by releasing of biochemical that called allelochemicals. This study focused on the evaluation of the weed control potential of the Allium akaka S. G. GMELIN water extract on Portulaca oleracea germination. For this purpose, different concentrations of the Allium water extract were tested as 2 mg/mL, 4 mg/mL, 8 mg/mL and 16 mg/mL. Distilled water was used as control. Twenty purslane seeds were placed in small jars (6 cm diameter) containing a double layer of filter paper moistened with 5 mL of A. Akaka extracts or distilled water. Each application was conducted at least three replications. Seeds having an emerged 2 mm radicle were considered as germinated. The germinated seeds were counted at the end of the seventh day. Also, the effects of Allium water extract were evaluated on root and shoot development. The extracts did not cause any changes in the germination percentage of the purslane seeds at any of the concentrations. However, the root and shoot lengths were significantly affected, especially at the concentration of 16 mg/mL. Increase in extract concentration was gradually inhibited the root growth. While the average root length in the control was measured as 3.91 cm, it was measured as 0.71 cm in 16 mg/mL extract application. The shoot length was also suppressed by the application of 16 mg/mL extract concentration. Suppressing weeds by allelopathic phenomenon is included among the important innovative weed control methods. So, this preliminary experiment can be improved for the weed control management.