TITLE:
The Exogenous Application of Abscisic Acid Induce Accumulation of Anthocyanins and Phenolic Compounds of the ‘Rubi’ Grape
AUTHORS:
Francisco José Domingues Neto, Adilson Pimentel Junior, Cristine Vanz Borges, Silvia Regina Cunha, Daniel Callili, Giuseppina Pace Pereira Lima, Sergio Ruffo Roberto, Sarita Leonel, Marco Antonio Tecchio
KEYWORDS:
Vitis vinifera, S-ABA, Table Grape, Bioactives Compounds
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.8 No.10,
September
15,
2017
ABSTRACT: The abscisic acid (ABA) is related to the formation of certain
polyphenols, such as anthocyanin, improving the nutritional and commercial
quality of the red grapes. In this study, we verified whether the exogenous
application ofS-ABA favors the accumulation
of anthocyanin, the total phenolic compounds and the antioxidant activity of
the‘Rubi’grape. The experiment was performed during the cycle 2014/2015 with
the‘Rubi’vine (Vitis viniferaL.) grafted in
the rootstock 420-A. The experimental design was composed of randomized blocks,
with four treatments and six blocks, in a total of 24 experimental parcels,
constituted of one plant each. We used theS-ABA isomer in
different concentrations and times of application, 400 mg·L-1S-ABA in the beginning of the ripening (BR); 400 mg·L-1at BR + 200 mg·L-1at 25 days after first application (DAFA); 400 mg·L-1at BR + 400 mg·L-1at 25 DAFA; besides the control (0 mg·L-1). After 40 days of the first
application, the samples were harvested and we verified that theS-ABA
induced the accumulation of anthocyanins and total phenolic compounds in the‘Rubi’grape. From these results we can recommend two applications ofS-ABA,
400 mg·L-1at BR + 200 mg·L-1at 25 DAFA.