“The Shockwave Petunia Series has found its niche as the only small-flowered series that spreads from seed. They are among the first to bloom in the expanding petunia class and produce a proliferation of 1 1/2 - 2 inch flowers that cover the crowded plants. (Harris, 2014).Plant PhysiologyPigments are chemical compounds 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 produce their own food through light. photosynthesis process. (Author unknown, 1997).Chlorophylls (refer to the appendix) contain a porphyrin ring. This is a stable ring-shaped molecule and the electrons are free to migrate. Since the electrons move freely within the ring it is possible to gain or lose electrons easily. This is the fundamental process by which chlorophyll “a” (see appendix) captures the energy of sunlight (Author unknown, 1997). the rate of transpiration is controlled by the stomatal opening, and these small pores open specifically for photosynthesis. (Wikipedia, 2014). While exceptions exist, such as CAM photosynthesis, generally a light supply source will encourage the stomata to open. Xylem and phloem Two transport systems called xylem and phloem move substances around a plant in a particular tissue called vascular tissue, it transports water and soluble minerals upwards, while the phloem transports sugars up and down the bass. Phloem and xylem tissues are found together in vascular bundles (ASBiology101, 2013). The vascular bundles are arranged differently in different parts of a plant and are located near the outer edge of the stem. The xylem is located towards... the center of the paper... appearance because they absorb all the color they receive, while maintaining the same flavor and texture. plants grown under natural light.(Julian, 2010)Agricultural Applications and PracticesLight control is an important horticultural technology can control the growth and flowering of plants by regulating the intensity and duration of light in greenhouse environments. Most plants grow best under the high light intensity of full sun; therefore, growth is reduced at low light intensities. In summer, on naturally long and sunny days, the intensity of natural light is sufficient for optimal plant growth. However, in the winter season it may become necessary to provide artificial light sources to those that most faithfully reproduce the wavelengths of solar radiation reaching the Earth. (New Mexico State University, 2013).