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Yield And Fruit Quality Of Tomato Grafted Onto Rootstocks Partially Resistant To Root-Knot Nematodes In A Naturally Infested Greenhouse

Mourão, Isabel; Gil Sá, Carlos; Moura, Luísa; Brito, L. Miguel; Vieira Santo, M. Clara and Costa, Sofia R. (2021) Yield And Fruit Quality Of Tomato Grafted Onto Rootstocks Partially Resistant To Root-Knot Nematodes In A Naturally Infested Greenhouse. Paper at: Organic World Congress 2021, Science Forum: 6th ISOFAR Conference co-organised with INRA, FiBL, Agroecology Europe, TP Organics and ITAB, Rennes, France, 8 - 10 September, 2021. [Completed]

[thumbnail of OWC2020-SCI-253.pdf] PDF - English
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Summary

Root-knot-nematodes (RKN), Meloidogyne spp., are major soilborne diseases in protected tomato production and grafting with resistant or partially resistant rootstocks has been showing promising results. The experiment was carried out in a sandy soil greenhouse in the Littoral NW Portugal. Tomato cv. Anairis was grafted onto rootstocks Embajador, Emperador, Multifort and Silex, with non-grafted and self-grafted plants used as controls, in an experimental design of 6 treatments in three randomized blocks, to evaluate the effects on yield and fruit quality. Soil samples were collected at planting and at the end of the trial to estimate soil populations of RKN. At the end of the trial, plants were uprooted to evaluate the numbers of galls, egg masses and female fecundity. The potential benefits of increased yield by plant grafting have not been revealed. However, plants grafted onto any of the tested rootstocks suffered significantly less nematode damage, which are in agreement with previous findings in organic and transitional fields when soil RKN pressure was low. As tomato production in organic greenhouses can be affected by RKN due to relatively short rotations, grafting with appropriate rootstocks may play an effective role in RKN management when high populations of nematodes are present.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:Root-knot-nematodes, tomato, vegetable grafting
Subjects:"Organics" in general
Research affiliation: International Conferences > 2021: Organic World Congress, Science Forum: 6th ISOFAR Conference co-organised with INRA, FiBL, Agroecology Europe, TP Organics and ITAB > Product and process quality in Organic Agriculture: methods and challenge
Portugal
Deposited By: rey, m. frederic
ID Code:42241
Deposited On:07 Sep 2021 13:12
Last Modified:07 Sep 2021 13:12
Document Language:English
Status:Unpublished
Refereed:Peer-reviewed and accepted
Additional Publishing Information:A book of abstracts of papers of the Science Forum at the Organic World Congress 2021, September 8-10, Online and on-site in Rennes, France '6th ISOFAR Conference co-organised with INRA, FiBL, Agroecology Europe, TP Organics and ITAB' has been published

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