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dc.contributor.authorGiné, Ariadna
dc.contributor.authorGonzalez, Cristina
dc.contributor.authorSerrano, Lydia
dc.contributor.authorSorribas Royo, Francisco Javier
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Agroalimentària i Biotecnologia
dc.identifier.citationGiné, A., Gonzalez, C., Serrano, L., Sorribas, F. Population dynamics of Meloidogyne incognita on cucumber grafted onto the Cucurbita hybrid RS841 or ungrafted and yield losses under protected cultivation. "European journal of plant pathology", 3 Gener 2017, p. 1-11.
dc.description.abstractThe influence of the squash hybrid RS841 rootstock (Cucurbita maxima x C. moschata) on population dynamics of Meloidogyne incognita and yield of cucumber cv. Dasher II was assessed during 2013 and 2014 in a plastic greenhouse. In addition, the relationship between ecophysiological parameters (plant water status, gas exchange, and leaf reflectance) and Pi and cucumber yield were also estimated in 2013. Nematode densities were determined at the beginning (Pi) and at the end (Pf) of each crop, and the relationship between these parameters was used to estimate the maximum multiplication rate (a), the maximum population density (M) and the equilibrium density (E) per grafted and ungrafted cucumber and cropping season. Moreover, the relationship between the multiplication rate (Pf/Pi) and Pi was compared between grafted and ungrafted cucumber per cropping season. Finally, the relative yield of grafted or ungrafted cucumber was plotted against Pi to determine the tolerance limit (T) and the minimum relative yield (m) by the Seinhorst damage function model. Values of a, M and E in grafted cucumber were higher than in ungrafted one irrespective of the cropping season. These results were supported by comparing the relationship between Pf/Pi and Pi between grafted and ungrafted cucumber. The relationship between Pi and yield fitted the Seinhorst damage function. The values of T and m did not differ between grafted and ungrafted each year. Predawn water potential, net photosynthetic rate, and leaf chlorophyll index decreased with increasing Pi. In addition, relative yield was related to variation in net photosynthetic rate and the leaf chlorophyll index. Under the conditions of this study, RS841 rootstock was neither resistant nor tolerant to M. incognita.
dc.format.extent11 p.
dc.subjectÀrees temàtiques de la UPC::Enginyeria agroalimentària::Agricultura
dc.subject.otherCucumis sativus
dc.subject.otherCucurbita maxima X Cucurbita moschata
dc.subject.otherEquilibrium density
dc.subject.otherMultiplication rate
dc.subject.otherRoot-knot nematode
dc.subject.otherTolerance limit
dc.titlePopulation dynamics of Meloidogyne incognita on cucumber grafted onto the Cucurbita hybrid RS841 or ungrafted and yield losses under protected cultivation
dc.subject.lemacCogombre -- Conreu i millora
dc.contributor.groupUniversitat Politècnica de Catalunya. PV - Patologia Vegetal
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
local.citation.authorGiné, A.; Gonzalez, C.; Serrano, L.; Sorribas, F.
local.citation.publicationNameEuropean journal of plant pathology

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