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Grant support

This research was funded by Fundacao para a Ciencia e Tecnologia (FCT) for the Ph.D. grant with the reference PD/BD/128399/2017. The authors acknowledge the research unit GREEN-it Bioresources for Sustainability (UID/Multi/04551/2013).

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Pina, Ana - Autor o Coautor
Publicaciones > Artículo

A Phenotypic Search on Graft Compatibility in Grapevine

Publicado en:Agronomy-Basel. 10 (5): - 2020-05-01 10(5), doi: 10.3390/agronomy10050706

Pina, Ana;


Centro de Investigación y Tecnología Agroalimentaria de Aragón - Entidad de origen
CITA Univ Zaragoz, Ctr Invest & Tecnol Agroalimentaria Aragon CITA, Inst Agroalimentario Aragon IA2, Unidad Hortofruticultura, Av Montanana 930, Zaragoza 50059, Spain - Autor o Coautor
InnovPlantProtect CoLab, Estr Gil Vaz Apartado 72, P-7351901 Elvas, Portugal - Autor o Coautor
Inst Tecnol Quim & Biol Antonio Xavier, Plant Cell Biotechnol Lab, Green It Unit, Ave Republ, P-2780157 Oeiras, Portugal - Autor o Coautor
Max Planck Inst Mol Pflanzenphysiol, Wissenschaftspk Golm,Muhlenberg 1, D-14476 Potsdam, Germany - Autor o Coautor
Portuguese Foundation for Science and Technology Appeared in article as Fundacao para a Ciencia e Tecnologia (FCT) - Financiador
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Resúmen: Grafting is the most used propagation method in viticulture and is the unique control strategy against Phylloxera. Nevertheless, its practice remains limited mainly due to inconsistent graft success and difficulties in predicting graft compatibility responses of proposed scion-rootstock combinations, slowing down the selection of elite rootstocks. Aiming to identify optimal phenotypic parameters related to graft (in)compatibility, we used four clones of two grapevine cultivars that show different compatibility behavior when grafted onto the same rootstock. Several physiological parameters, internal anatomy of the graft union, chlorophyll fluorescence, and pigment contents of homo- and heterografts were monitored in a nursery-grafting context. The measurements highlighted enhanced performance of the heterografts due to rooting difficulties of Vitis vinifera homografts. This suggests that in viticulture, homografts should only be used as compatibility controls regarding qualitative attributes. By observing the internal anatomy of the union, we found that grapevines might require longer times for graft healing than anticipated. While Affinity Coefficients were not informative to assess incompatibility, leaf chlorophyll concentration analysis proved to be a more sensitive indicator of stress than the analysis of chlorophyll fluorescence. Overall, we conclude that graft take correlated best with callus formation at the graft junction three weeks after grafting.

Palabras clave: Chlorophyll fluorescence; Diversity; Graft incompatibility; Graft success prediction; Grafting; Grapevine; Incompatibility; Markers; Peach cultivars; Richter 110; Rootstock; Rootstock breeding; Syrah; Touriga nacional; Union; Vitis

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