Effect of Wave Length Bands of Filtered Light on Germination of Seeds of Kentucky Bluegrass (Poa Pratensis)

Botanists have long known that light, supplied during the germination period, may increase germination percentages. Most studies concerning the effects of light on the germination of seeds have utilized the entire visible spectrum. Only a few workers have studied the effects of various portions of the spectrum. However, results of these studies, dealing with a number of species, have not been consistent. The effect of color of light on germination of Kentucky bluegrass seed has not been previously investigated. Since it is a light sensitive species it was felt that such a study would provide additional basic information on the problem of wave length effect. Because of the limited amount of work which has been done on the effects of wave length of light on the germination of seeds, the literature review includes most of the previous work as a matter of information rather than because it has a direct bearing on the work with Kentucky bluegrass