Our group measured the heliotropic response rate of the Malva parviflora under various light environments in order to see the effect that light color and intensity had on daily leaf movement. In our experiment we measured the leaf angle of plants under white, blue, red and green light, as well as plants under shade, over a specific duration of time in order to determine the rate of change. We ran a One-Way Analysis of Variance on leaf angle for light color as well as coverage at a 0.05 level using SPSS 17.0. The ANOVA test showed no significance for light color as p= .656 while the test for coverage was significant as p= .013. Following the ANOVA for the coverage, a Tukey post hoc was applied and a significant difference between no coverage and 4 canopied plants was concluded.
Lawrence, Amy; Young, Ben; and Yarborough, Matthew, "The Effects of Light Intensity and Color Absorption of Diurnal Leaf Movements of Malva parviflora" (2009). Pepperdine University, All Undergraduate Student Research. Paper 9.