An assignment completed with my group for a statistics class.
This study investigates the effects of watering frequency and light exposure on the germination of Diplacus aurantiacus (Sticky Monkey Flower), a drought-resistant chaparral species critical to post-fire ecological restoration. A total of 350 seedlings were randomly assigned to five watering treatments across five light exposure conditions in a randomized complete block design. Germination time in days served as the primary response variable. Results from a two-way ANOVA revealed significant effects for both watering frequency (p = 0.003) and light exposure (p < 0.001). Tukey’s HSD tests indicated that daily watering significantly accelerated germination compared to every-other-day watering (p = 0.0015). Plots receiving shade in the morning and sun in the afternoon showed the shortest germination times overall. The study also demonstrated the efficiency of blocking by location, with a 60% gain in precision over a completely randomized design. Findings support the use of moderate, consistent watering and strategic light exposure to promote germination and soil stabilization in restoration contexts. Limitations included environmental variability and mechanical interference, highlighting the need for future controlled-environment studies.