Document Type : Research Article
Abstract
In light of the global trend towards organic and sustainable agriculture, there has been an increasing interest in using microalgae as bio-stimulants and natural fertilizers as alternatives to chemical fertilizers. Algae such as Chlorella vulgaris and Spirulina platensis are considered rich sources of bioactive compounds that promote plant growth and stimulate the production of active substances. This study aims to evaluate the effect of adding microalgal extracts (Chlorella vulgaris and Spirulina platensis) on the growth of basil plants (Ocimum basilicum L.) and to improve their content of active compounds. Taking place in 2024 in Alhindia city, Kerbala, Iraq, The aforementioned experiment was set up using a Randomized Complete Block Design (RCBD) with three replications and a factorial arrangement. Two components were used in the study: Spirulina platensis algae (control, 100, 200, 250 mL.L-1) and Chlorella vulgaris (control, 100, 200, 250 mL.L-1). After the active chemical components were measured, the plants were harvested when they reached full maturity. The results show that the effects of the spray treatments with the extracts of Spirulina platensis and Chlorella vulgaris mL.L-1 resulted in notable variations in the active component content. Camphor, Linalool, Pinene, and Myercene mg g-1 at concentration (250 mL. L-1) had the greatest averages of 2.97, 3.31 mg g-1, 23.22, 24.97 mg g -1, 0.23, 0.27 mg g -1, 8.29, and 8.53 mg g -1, respectively.
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