Mycorrhization and grafting improve growth in the tomato and reduce the population of Nacobbus aberrans
ABSTRACT Inoculation with mycorrhizal fungi and the use of rootstock that is tolerant or resistant to nematodes are two strategies that allow the nematode to be controlled, and plants to coexist with the pathogen. However, the two techniques have always been tested in isolation, when their positive effects are less compared to when they are able to act together. In the present work, two rootstocks combined with the mycorrhizal fungus Rhizophagus intraradices were compared, with the aim of evaluating their behaviour on the growth of tomato plants in soils infested with N. aberrans, the false root-knot nematode. The experiment was set up in a completely randomised design with ten replications, in a 3 x 2 x 2 factorial scheme. The treatments consisted of a combination of three factors: a) plant composition: two rootstocks (Solanum lycopersicum var. cerasiform 'Carolina' and S. lycopersicum 'Maxifort'), onto which the 'Santa Clara' tomato (S. lycopersicum) was grafted, and a non-grafted plant, considered the control, which was the same cultivar as the graft; b) mycorrhization: mycorrhizal or non-mycorrhizal roots; c) a substrate infested or not infested with N. aberrans. The plants grafted onto 'Maxifort' showed significantly greater growth for shoot dry weight, root fresh weight and stem diameter. The rootstock under test had a lower pathogen reproductive factor than did the ungrafted plant. Mycorrhization contributed to a reduction in the number of days until flowering, and a reduction in the final population of N. aberrans for the three plant compositions under test.
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Universidade Federal do Ceará
2019
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oai:scielo:S1806-669020190004006092019-10-30Mycorrhization and grafting improve growth in the tomato and reduce the population of Nacobbus aberransGarita,Sebastián AndrésBernardo,Valeria FernandaGuimarães,Marcelo De AlmeidaArango,María CeciliaRuscitti,Marcela Fabiana False root-knot nematode Rhizophagus intraradices Reproductive factor ABSTRACT Inoculation with mycorrhizal fungi and the use of rootstock that is tolerant or resistant to nematodes are two strategies that allow the nematode to be controlled, and plants to coexist with the pathogen. However, the two techniques have always been tested in isolation, when their positive effects are less compared to when they are able to act together. In the present work, two rootstocks combined with the mycorrhizal fungus Rhizophagus intraradices were compared, with the aim of evaluating their behaviour on the growth of tomato plants in soils infested with N. aberrans, the false root-knot nematode. The experiment was set up in a completely randomised design with ten replications, in a 3 x 2 x 2 factorial scheme. The treatments consisted of a combination of three factors: a) plant composition: two rootstocks (Solanum lycopersicum var. cerasiform 'Carolina' and S. lycopersicum 'Maxifort'), onto which the 'Santa Clara' tomato (S. lycopersicum) was grafted, and a non-grafted plant, considered the control, which was the same cultivar as the graft; b) mycorrhization: mycorrhizal or non-mycorrhizal roots; c) a substrate infested or not infested with N. aberrans. The plants grafted onto 'Maxifort' showed significantly greater growth for shoot dry weight, root fresh weight and stem diameter. The rootstock under test had a lower pathogen reproductive factor than did the ungrafted plant. Mycorrhization contributed to a reduction in the number of days until flowering, and a reduction in the final population of N. aberrans for the three plant compositions under test.info:eu-repo/semantics/openAccessUniversidade Federal do CearáRevista Ciência Agronômica v.50 n.4 20192019-12-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000400609en10.5935/1806-6690.20190072 |
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Garita,Sebastián Andrés Bernardo,Valeria Fernanda Guimarães,Marcelo De Almeida Arango,María Cecilia Ruscitti,Marcela Fabiana |
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Garita,Sebastián Andrés Bernardo,Valeria Fernanda Guimarães,Marcelo De Almeida Arango,María Cecilia Ruscitti,Marcela Fabiana Mycorrhization and grafting improve growth in the tomato and reduce the population of Nacobbus aberrans |
author_facet |
Garita,Sebastián Andrés Bernardo,Valeria Fernanda Guimarães,Marcelo De Almeida Arango,María Cecilia Ruscitti,Marcela Fabiana |
author_sort |
Garita,Sebastián Andrés |
title |
Mycorrhization and grafting improve growth in the tomato and reduce the population of Nacobbus aberrans |
title_short |
Mycorrhization and grafting improve growth in the tomato and reduce the population of Nacobbus aberrans |
title_full |
Mycorrhization and grafting improve growth in the tomato and reduce the population of Nacobbus aberrans |
title_fullStr |
Mycorrhization and grafting improve growth in the tomato and reduce the population of Nacobbus aberrans |
title_full_unstemmed |
Mycorrhization and grafting improve growth in the tomato and reduce the population of Nacobbus aberrans |
title_sort |
mycorrhization and grafting improve growth in the tomato and reduce the population of nacobbus aberrans |
description |
ABSTRACT Inoculation with mycorrhizal fungi and the use of rootstock that is tolerant or resistant to nematodes are two strategies that allow the nematode to be controlled, and plants to coexist with the pathogen. However, the two techniques have always been tested in isolation, when their positive effects are less compared to when they are able to act together. In the present work, two rootstocks combined with the mycorrhizal fungus Rhizophagus intraradices were compared, with the aim of evaluating their behaviour on the growth of tomato plants in soils infested with N. aberrans, the false root-knot nematode. The experiment was set up in a completely randomised design with ten replications, in a 3 x 2 x 2 factorial scheme. The treatments consisted of a combination of three factors: a) plant composition: two rootstocks (Solanum lycopersicum var. cerasiform 'Carolina' and S. lycopersicum 'Maxifort'), onto which the 'Santa Clara' tomato (S. lycopersicum) was grafted, and a non-grafted plant, considered the control, which was the same cultivar as the graft; b) mycorrhization: mycorrhizal or non-mycorrhizal roots; c) a substrate infested or not infested with N. aberrans. The plants grafted onto 'Maxifort' showed significantly greater growth for shoot dry weight, root fresh weight and stem diameter. The rootstock under test had a lower pathogen reproductive factor than did the ungrafted plant. Mycorrhization contributed to a reduction in the number of days until flowering, and a reduction in the final population of N. aberrans for the three plant compositions under test. |
publisher |
Universidade Federal do Ceará |
publishDate |
2019 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000400609 |
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