Percent leaf necrosis can be used to assess severity of early leafspot caused by Cercospora arachidicola Hori on peanut (Arachis hypogaea L.). Measurements of leaf necrosis (%), as determined by area, and the corresponding loss (%) in total chlorophyll content were made. Correlations were calculated using linear regression, and logarithmic curve fit analyses. High positive correlation values were obtained between leaf necrosis and loss in total chlorophyll. Therefore, this method is suggested for a reasonably accurate and fast assessment of leaf necrosis of peanut caused by C. arachidicola.
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Keywords: Leafspot, disease assessment, insoluble polyvinylpyrrolidone, polyphenols
How to Cite:
(1978) “Determination of Leaf Necrosis Caused by Cercospora arachidicola Hori in Peanut as Measured by Loss in Total Chlorophyll¹”,
Peanut Science 5(1),
01 Jan 1978