Sugarcane Breeding Institute, Coimbatore - 641 007, Tamil Nadu.
*Corresponding author.
In sugarcane, moisture stress imposed at the formative phase increased the activity of peroxidase, polyphenol oxidase and IAA oxidase. The peroxidase and IAA oxidase activity doubled during moisture stress condition, while the increase in polyphenol oxidase activity was four fold. The activity of these enzymes reverted to normal level with the relief of stress. There was a concomitant decline in the rate of expansion of young internode with decreasing relative water content and increase in the activity of oxidative enzymes, irrespective of varieties.
IAA oxidase, internodal elongation, moisture stress, oxidative enzymes
