Use of image analysis to assess radial growth of and on solid media.

Despite significant research on early and late leaf spot diseases of peanut, in vitro study of the respective causal agents, and , has been limited due to cultural challenges that make growth of these fungi difficult to quantify with traditional methods. Studies were conducted to evaluate the practicality of image analysis to assess radial growth and tissue volume by correlating these assessments to dry mass. Image analysis was also used to estimate radial growth rates for these fungi over time.