INITIAL STUDY ON EFFECT OF SEAWEED EXTRACT FROM Porphyra vietamensis ON Brassica juncea (L.) Czern. et Coss. AND Amaranthus tricolor

Tóm tắt

Seaweed extracts have been increasingly studied for their potential in foliar fertilizer production due to their ability to promote plant growth. This study initially investigated the effect of extracts from Porphyra vietamensis, obtained using potassium hydroxide solution, on the growth of Brassica juncea (L.) Czern. et Coss. and Amaranthus tricolor. The experiment for each plant species included four treatments: water spray (control), and foliar application of seaweed extract at doses of 6 ml (SE06), 9 ml (SE09), and 12 ml (SE12). The results showed that seaweed extract positively impacted plant height, leaf color (SPAD value), and biomass, particularly at appropriate doses. Plant height, SPAD value, and biomass of Brassica juncea (L.) Czern. et Coss. were significantly higher in the 12 ml seaweed extract treatment compared to the control (water spray). Similarly, plant height, SPAD value, and biomass of Amaranthus tricolor were also higher in the 6 ml and 9 ml seaweed extract treatments compared to the water spray control. This study provides a foundation for developing foliar fertilizers from seaweed extract using potassium hydroxide as the solvent and suggests further research into the active compounds in the extract for specialized applications for different plant species.