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