Preharvest application of methyl jasmonate for improving postharvest quality of ‘Pusa Navrang’ grapes

Published

2019-12-31

DOI:

https://doi.org/10.5958/0974-0112.2019.00114.2

Keywords:

Vitis vinifera, TSS, phenolics, flavonoids, mineral nutrients.
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Authors

  • Tanushree Sahoo Division of Fruits and Horticultural Technology, ICAR-Indian Agricultural Research Institute, New Delhi 110012
  • U.M. Grace Division of Fruits and Horticultural Technology, ICAR-Indian Agricultural Research Institute, New Delhi 110012
  • Khalil Fitrat Division of Fruits and Horticultural Technology, ICAR-Indian Agricultural Research Institute, New Delhi 110012
  • Chavlesh Kumar Division of Fruits and Horticultural Technology, ICAR-Indian Agricultural Research Institute, New Delhi 110012
  • V.B. Patel Division of Fruits and Horticultural Technology, ICAR-Indian Agricultural Research Institute, New Delhi 110012
  • S.K. Singh Division of Fruits and Horticultural Technology, ICAR-Indian Agricultural Research Institute, New Delhi 110012
  • C. Bharadwaj Division of Fruits and Horticultural Technology, ICAR-Indian Agricultural Research Institute, New Delhi 110012
  • V.K. Sharma Division of Fruits and Horticultural Technology, ICAR-Indian Agricultural Research Institute, New Delhi 110012
  • Madhubala Thakre Division of Fruits and Horticultural Technology, ICAR-Indian Agricultural Research Institute, New Delhi 110012
  • A.K. Dubey Division of Fruits and Horticultural Technology, ICAR-Indian Agricultural Research Institute, New Delhi 110012
  • M.K. Verma Division of Fruits and Horticultural Technology, ICAR-Indian Agricultural Research Institute, New Delhi 110012
  • A.I. Mir Division of Fruits and Horticultural Technology, ICAR-Indian Agricultural Research Institute, New Delhi 110012

Abstract

Exogenous application of elicitors is a good strategy to induce physiological changes in grapevines. Methyl jasmonate is one of the potential elicitor trigger the synthesis of phytochemical compounds in grapes. Therefore, an experiment was conducted to study the influence of preharvest application of methyl jasmonate (MeJA) on nutritional quality of grapes cv. Pusa Navrang (Vitis vinifera L.). The experiment was laid out in factorial RBD with 3 replications the treatments were designated with four levels of MeJA (0, 5, 10, 15 mM) and three time of application. The results clearly showed a negligible effect of MeJA on TSS, titratable acidity, juice pH and TSS/ TA ratio. Whereas, significant effect was observed for total phenolics (504.58 GAE, mg /100g), total flavonoids (418.33 QE, mg /100g). and total monomeric anthocyanins (1434 C3GE mg/kg fresh weight). with the application of methyl jasmonate (10 mM) at veraison stage. This resulted in the accumulation of higher antioxidant activity in terms of FRAP assay (19.44 TE, μmol /g) with the same treatment combination.

How to Cite

Sahoo, T. ., Grace, U. ., Fitrat, K. ., Kumar, C. ., Patel, V. ., Singh, S. ., … Mir, A. . (2019). Preharvest application of methyl jasmonate for improving postharvest quality of ‘Pusa Navrang’ grapes. Indian Journal of Horticulture, 76(04), 721–727. https://doi.org/10.5958/0974-0112.2019.00114.2

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