Effect of nitrogen and potassium fertilizer on induced resveratrol synthesis in two grapevine genotypes

Authors

  • E. Bavaresco
  • M. Fregoni
  • D. Petegolli

DOI:

https://doi.org/10.5073/vitis.1994.33.175-176

Keywords:

grapevine, nitrogen, potassium, resveratrol

Abstract

Research Note

One-year-old grapevine cuttings of the interspecific hybrid Castor and V. vinifera L. cv. Bacchus were grown in pots with 4 combined doses of nitrogen and potassium, in order to test their effect on the resveratrol synthesis of the leaves, after elicitation with mucic acid (0.01 %). The tests were performed on leaf discs, inside bio-assay dishes. The most significant findings were:

  1.  the fertilizer treatments had a higher effect on the resveratrol synthesis of Castor than in Bacchus;
  2. high potassium supply together with low nitrogen rate promoted the resveratrol synthesis of Castor;
  3. high potasium rates did not balance the negative effect of high nitrogen supply on resveratrol synthesis.

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Published

2015-08-20

Issue

Vol. 33 No. 3 (1994): Vitis

Section

Article

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