Invasive Species Compendium

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Abstract

Deterioration in juice quality of sugarcane due to pathotypes of red rot pathogen.

Abstract

Sugarcane varieties (BO 74 and BO 91) infected with pathotypes of the red rot pathogen (Colletotrichum falcatum [Glomerella tucumanensis]) showed an increase in moisture content, invertase activity, titratable acidity, total soluble salts, gum content and reducing sugars, and a decrease in juice content, sucrose content, brix, purity, C.C.S., pH and ash content. Red rot infected cane juice contained less phosphorus, potassium, magnesium, zinc, manganese and copper and more nitrogen, sodium, calcium, boron and iron compared to uninfected cane juice. The accumulation/depletion of these parameters was directly proportional to the virulence of the pathotypes and the degree of resistance of cane varieties.