Brunswick FFA Floriculture Practice Exam 2026 – Complete Test Preparation

The color of flower petals is predominantly influenced by the genetic makeup of the plant and environmental conditions. The genetic makeup determines the specific pigments that will be produced in the petals, such as anthocyanins (which can give red, purple, or blue hues) and carotenoids (which can produce yellow or orange colors). These pigments are a direct result of the plant's genetic instructions, dictating not only color but also the concentration and expression of these pigments.

Environmental conditions also play a crucial role in the manifestation of colors. Factors such as soil pH, light exposure, and temperature can affect pigment production and stability, leading to variations in flower color even within the same species. For example, in some flowers, changes in soil pH can shift colors from blue to pink, particularly in hydrangeas.

Other choices, such as water availability, soil texture, or seasonal changes, do have effects on plant health and growth, but they do not directly influence the inherent color of the petals as significantly as the interplay between genetics and environmental factors. Water can affect flower quality and vitality, while soil texture may impact overall plant growth; however, the primary determinants of petal color remain tied to the genetic and environmental factors at play.