2021, Vol. 9 Issue 1, Part A
Allelopathic activity of thymol on seeds germination and effect on seedling properties at the non-allelopathic dose
AUTHOR(S): Zohra Mohammedi
ABSTRACT:The work responds to an important problem, concerning the use of thymol in biocontrol against pathogens and weeds in agriculture as an alternative to artificial chemical pesticides and herbicides. Experimentally, the tests are carried out on three types of seeds from three large crops; Wheat, Corn, and Lentils. Tests, in vitro and in vivo, of allelopathic activity on germination were carried out. Measurements of certain growth parameters of thymol-treated seedlings were determined in vivo after 15 days of growth under non-allelopathic conditions (non-allelopathic dose). Germination results obtained in vitro showed phytotoxic effects of thymol on the seeds of the three species of plants selected at low doses. The values recorded, in vivo, on the germination of the seeds of the three species confirm the non-allelopathic action of the concentration 0.05% thymol determined in vitro, while at this concentration, thymol influences the growth parameters, causing a decrease in biomass and photosynthetic pigments. In addition, the growth in length was not influenced, good growth in seedlings was observed. The results obtained have just demonstrated and confirmed the existence of the phytotoxic effects of thymol on the seeds and seedlings of three important crops for humans. It is therefore important to control the use of biopesticides in fields even at non-allelopathic doses of germination.
Pages: 01-05 | 153 Views 33 Downloads
How to cite this article:
Zohra Mohammedi. Allelopathic activity of thymol on seeds germination and effect on seedling properties at the non-allelopathic dose. Am J Essent Oil Nat Prod 2021;9(1):01-05.