Compatibility and initial development of grapevines ‘BRS Magna’ grafted on different rootstocks

Chaiane Renata Grigolo,Rafael Henrique Pertille,Nelson Pires Feldberg,Idemir Citadin,Kelvin Cristhian Campos Takeshita,Ester Provensi Santos,Silvia Scariotto

doi:10.1590/0103-8478cr20190939

Chaiane Renata Grigolo, Rafael Henrique Pertille + Show 5 more

Open Access

https://doi.org/10.1590/0103-8478cr20190939

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Abstract

ABSTRACT: Rootstocks are widely used in viticulture due to their resistance to biotic and abiotic stress. Additionally, rootstocks can affect vine growth and fruit quality. This study evaluated the compatibility and initial developmental of the ‘BRS Magna’ grafted on different rootstocks The wedge graft technique on woody cuttings was utilized. The percentage of survival ranged from 0% (‘VR043-43’) to 98.33% (‘101-14 MGT’), and the rootstock were grouped into three distinct groups. ‘IAC 313 Tropical’ and ‘SO4’ rootstocks were those ones with the highest vigor in relation to initial shoot growth. However, ‘IAC 572 Jales’, ‘Harmony’, ‘3309 Couderc’ and ‘Gravesac’ had the best balance between initial shoot growth and root development. The ‘BRS Magna’ when grafted on rootstocks ‘IAC 313 Tropical’, ‘SO4’ and ‘101-14 MGT’ showed the highest initial development rates, while when grafted on ‘R99’, ‘R110’ and ‘420A’, it showed the lowest initial development.

Highlights

RESUMO: Os porta-enxertos são amplamente utilizados na viticultura devido à sua resistência aos estresses biótico e abiótico
Rio Grande do Sul is the largest producer of the fruit, with an estimated production in 2019 of 666,423 tons, followed by Pernambuco and São Paulo (ANUÁRIO BRASILEIRO DE HORTI & FRUTI, 2020)
Among the vine cultivars intended for juice production in Brazil, ‘BRS Magna’ was released as an alternative to improve the color, sweetness and flavor of the produced grape juice (RITSCHEL et al, 2012), these characteristics may be favored by using the appropriate rootstock

Summary

Introduction

RESUMO: Os porta-enxertos são amplamente utilizados na viticultura devido à sua resistência aos estresses biótico e abiótico. In search of the ideal combination between rootstock and scion for juice production, This study evaluated the compatibility of the rootstock and the initial development of ‘BRS Magna’ grafted in different rootstocks. One-year-old shoots of seventeen grapevine rootstocks were harvested in stage of dormancy and adequate sanitary condition, which were as it follows: ‘Paulsen 1103’, ‘R99’, ‘R110’, ‘Gravesac’, ‘101-14 MGT’, ‘3309 Couderc’, ‘420A’, ‘Solferino’, ‘SO4’, ‘Kober 5BB’, ‘IAC 766 Campinas’, ‘Freedom’, ‘Harmony’, ‘VR043-43’, ‘Salt Creek’, ‘IAC 572 Jales’ and ‘IAC 313 Tropical’.

Results

Conclusion