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Physiological and biochemical mechanism of corky tissue formation in sapota fruit cv. Cricket Ball

Objectives : To identify the mechanism of corky tissue formation in sapota cv. Cricket Ball and develop measures for its management in the field.


Date of start of this programme :  1st August 2010


PI :


S. Shivashankar


Co-PI  : 


V.V. Sulladmath


Funding Agency :


Council of Scientific and Industrial Research (CSIR), New Delhi


Salient achievements:


  • Corky tissue of sapota is a physiological disorder in which cork-like tissue, dry and slightly acidic in nature, appear on the pulp in ripe fruits. 
  • Studies undertaken under the project have indicated that the disorder occurs primarily due to a lack of seed viability in the initial stages of fruit growth on the tree.
  • Results with shoot bud manipulation techniques showed the occurrence of the phenomenon of “Reverse flow” under water deficient conditions. 
  • This has been confirmed using radiotracer studies which established the flow of water and nutrients from fruits to developing shoot buds on the same panicle.