A Study on the Growth of Red Oak Lettuce (Lactuca sativa L.) Using Photosynthetic Bacteria in the Mae Klong River Basin, Samut Songkhram Province

Abstract

Abstract

          The objective of this study was to investigate the growth factors of red oak lettuce and the effect of water source locations on plant growth using photosynthetic bacteria in the Mae Klong River Basin, Samut Songkhram Province. The experiment was conducted using a Completely Randomized Design (CRD) with three replications, each consisting of three pots. Water samples were collected from three locations: Wat Bang Nok Khwaek Cathedral area, Amphawa Floating Market area, and Wat Sattatham area, Samut Songkhram Province. Red oak lettuce plants were sprayed with three types of water: tap water, Mae Klong River water, and photosynthetic bacteria for a period of 60 days. The growth parameters measured included plant height, number of leaves, leaf greenness value, and canopy width. Data were analyzed using mean, standard deviation, and One-way ANOVA.

            The results revealed that the application of photosynthetic bacteria significantly affected plant height, number of leaves, and leaf greenness at the 0.05 level of significance, whereas canopy width showed no significant difference. In addition, water source locations in the Mae Klong River Basin had no significant effect on the growth of red oak lettuce. The findings indicate that photosynthetic bacteria can be effectively applied as an alternative approach to enhance the growth performance of red oak lettuce cultivation.