“The Shockwave Petunia Series has found its niche as the only small-flowered series that propagates from seed. They are among the first to bloom in the spreading petunia class, and they produce a proliferation of 1 1/2 to 2" flowers that cover the mounded plants." (Harris, 2014). Plant Physiology Pigments are compounds chemicals that reflect and absorb only certain wavelengths of visible light Because pigments interact with light to absorb only certain wavelengths, pigments are useful to plants and other autotrophs, which make their own food through them. the process of photosynthesis. (Author unknown, 1997). Chlorophylls (see appendix) contain a porphyrin ring. It is a stable ring-shaped molecule and electrons are free to migrate. move freely within the ring, it is possible to gain or lose them easily. This is the fundamental process by which chlorophyll “a” (see appendix) captures energy from sunlight (. Author unknown, 1997). the rate of transpiration is controlled by the stomatal opening, and these small pores open especially for photosynthesis. (Wikipedia, 2014). Although there are exceptions, such as CAM photosynthesis, a source of light generally encourages the opening of the stomata. Xylem and phloem Two transport systems called xylem and phloem move substances around a plant in a particular tissue called vascular tissue. , transports water and soluble minerals upward, while phloem transports sugars up and down. Phloem and xylem tissues are found together in vascular bundles (ASBiology101, 2013). Vascular bundles are arranged differently in different parts of a plant. are found near the outer edge of the stem. The xylem is found towards......the middle of the paper......appearance as they absorb all the color they receive, although they still have the same taste and texture as plants grown under natural light (Julian, 2010)Agricultural Applications and PracticesLight control is an important technology in horticulture. Growers can control plant growth and flowering by regulating the intensity and duration of light in greenhouses . The majority of plants grow best in the high light intensities of full sun; therefore, growth is reduced at low light intensities. In summer, under naturally long and sunny days, the intensity of natural light is sufficient for optimal plant growth. However, during the winter season it may be necessary to provide artificial light sources with those that most closely reproduce the wavelengths of solar radiation reaching the Earth. (New Mexico State University, 2013).