Regulation of cluster compactness and resistance to Botrytis cinerea with β-aminobutyric acid treatment in field-grown grapevine

M. Kocsis, A. Csikász-Krizsics, B. Szata, S. Kovács, Nagy, A. Mátai, G. Jakab

Research output: Contribution to journalArticle

Abstract

Our paper offers unique information regarding the effects of DL-β-amino-n-butyric acid (BABA) on grape cluster compactness and Botrytis bunch rot development. The impact of treatment was investigated on a native Hungarian grapevine cultivar, 'Királyleányka' (Vitis vinifera L.) during three seasons. The highly sensitive cultivar with thin skinned berries provided excellent samples for Botrytis bunch rot studies. Our objective was to study if BABA treatment contributes to decrease Botrytis infection by promoting looser clusters. For this purpose, the female sterility effect of BABA in grapevine flowers was also examined, which may result in looser clusters. Cluster compactness was characterized with two different indexes; bunch rot incidence was assessed in percentages. Ovaries of flowers were examined under epifluorescent microscope. Significant differences were found in the compactness index (berry number/bunch length) between the control (2.87 ? 0.83 no./cm) and treated bunches in the case of 2.0 g?L-1 (2.18 ? 0.77 no./cm) and 3.0 g?L-1 (1.90 ? 0.72 no./cm) concentrations. Bunch rot incidence, however, was highly dependent on disease pressure influenced by the precipitation during ripening. In year 2013 all treatments gave significantly lower infection incidence, while the extremity of rain in 2012 and 2014, resulted in no epidemic or high infection, respectively. The treatment with 2.0 g?L-1 BABA concentration decreased cluster parameters and led to the lowest disease incidence. Microscopic studies proved that successful treatments on cluster structure can be traced back to the female sterility caused by BABA. Our results presented clear evidence for the effectiveness of BABA treatment on Botrytis bunch rot by promoting looser clusters.

Original languageEnglish
Pages (from-to)35-40
Number of pages6
JournalVitis - Journal of Grapevine Research
Volume57
Issue number1
DOIs
Publication statusPublished - Jan 1 2018

Fingerprint

Aminobutyrates
Botrytis
Botrytis cinerea
acid treatment
Female Infertility
female fertility
Incidence
Vitis
incidence
small fruits
Fruit
Infection
infection
flowers
Butyric Acid
Rain
butyric acid
cultivars
Vitis vinifera
microscopes

Keywords

  • BABA (DL-β-amino-n-butyric acid)
  • Botrytis bunch rot
  • Cluster compactness
  • Epifluorescent microscopy
  • Female sterility

ASJC Scopus subject areas

  • Genetics
  • Horticulture

Cite this

Regulation of cluster compactness and resistance to Botrytis cinerea with β-aminobutyric acid treatment in field-grown grapevine. / Kocsis, M.; Csikász-Krizsics, A.; Szata, B.; Kovács, S.; Nagy; Mátai, A.; Jakab, G.

In: Vitis - Journal of Grapevine Research, Vol. 57, No. 1, 01.01.2018, p. 35-40.

Research output: Contribution to journalArticle

Kocsis, M. ; Csikász-Krizsics, A. ; Szata, B. ; Kovács, S. ; Nagy ; Mátai, A. ; Jakab, G. / Regulation of cluster compactness and resistance to Botrytis cinerea with β-aminobutyric acid treatment in field-grown grapevine. In: Vitis - Journal of Grapevine Research. 2018 ; Vol. 57, No. 1. pp. 35-40.
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