Studies on the effect of chilling on the photosynthesis of grapevine

Authors

  • B. Bálo
  • L. A. Mustárdy
  • É. Hideg
  • Á. Faludi-Dániel

DOI:

https://doi.org/10.5073/vitis.1986.25.1-7

Keywords:

cold, resistance, photosynthesis, stoma, hydration, chlorophyll, potassium

Abstract

The effect of chilling stress (6 ± 2 °C) on the photosynthetic capacity of grapevine in cultivars of different chilling sensitivity was studied under laboratory conditions.
  1. Chilling stress (4 h under 80 W m-2 illumination) reduced the capacity of 14CO2 incorporation by 10 % (Leányka) and 2.0-70 % (Zöld veltelini), respectively. The onset of injury was influenced by the level of nutrients available. This decrease of the photosynthetic capacity was reversible. Longer exposure resulted in a cold adaptation in both cultivars.
  2. The more tolerant Leänyka responded to chilling by closing stomata while in the more sensitive Zöld veltelini stomatal response was impaired.
  3. Chilling acted as a water stress as shown by a decrease of the water potential and by influencing the kinetic properties of fluorescence induction which indicates an inhibition of Photosystem II.

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Published

2015-12-16

Issue

Vol. 25 No. 1 (1986): VITIS

Section

Article

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