Evaluation of two potential<i>Cucumis</i>spp. resources for grafting melons

Gisbert, Carmina; Gammoudi, Najet; Munera, Maria; Giné, Ariadna; Pocurull, Miriam; Sorribas, Francisco Javier; Picó, Maria Belén

doi:10.17660/actahortic.2017.1151.25

Cited by 9 publications

(29 citation statements)

References 12 publications

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“…This accession was collected in Ademuz (Valencia, eastern Spain). It was tested against nematodes under natural conditions, and responded as highly resistant, with a significantly lower number of eggs and nematodes on roots compared to the watermelon scions …”

Section: Methodsmentioning

confidence: 99%

“…The aim of this study was to validate the use of a selected citron melon accession collected in Spain as rootstock for watermelon. This accession had been reported previously as highly resistant to nematodes . The effect of this citron melon accession on fruit quality was studied and compared with non‐grafted plants, self‐grafted plants and plants grafted onto two Cucurbita hybrid rootstocks.…”

Section: Introductionmentioning

confidence: 99%

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Fruit quality assessment of watermelons grafted onto citron melon rootstock

et al. 2016

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BACKGROUNDThe grafting of watermelons (Citrullus lanatus) is a common technique that increases yields under stressful soil conditions. The most common rootstocks for watermelons are Cucurbita hybrids. However, they often have a negative impact on fruit quality.Exploiting novel Citrullus germplasm, such as citron melon (Citrullus lanatus var. citroides), is an alternative to avoid these quality problems. RESULTSCitron melon has been validated as watermelon rootstock, comparing its effects on watermelon quality to those of Cucurbita hybrids. Larger fruits with thicker rinds were observed in fruits from plants grafted onto both citron and Cucurbita rootstocks. The citron melon had no significant effect on flesh sugars or acid profiles compared to nongrafted watermelons, except for an increase in glucose and malic acid content, which also occurred in the Cucurbita rootstocks. The aroma profile of fruits produced onto citron melon was similar to that of the non-grafted and self-grafted controls. The citron rootstock didn't display the increased levels of (Z)-6-nonen-1-ol (a compound associated with pumpkin-like odors) found in fruits produced with Cucurbita hybrids. CONCLUSIONThe low impact of citron melon rootstock on fruit quality along with the enhanced resistance against nematodes, make the citron a promising alternative to Cucurbita rootstocks. KeywordsCitrullus lanatus; fruit quality; grafting; aroma profile This article is protected by copyright. All rights reserved. The most common commercial rootstocks for watermelons are Cucurbita interspecific hybrids (C. moschata Duchesne x C. maxima Duchesne) and bottle gourd accessions (Lagenaria siceraria Standl). These rootstocks confer resistance to most of the soilborne fungi affecting watermelon. However, they are susceptible to root-knot nematodes (RKN, Meloidogyne spp.). 4 These pathogens cause extensive damage to watermelon roots and increase the severity of Fusarium wilt in watermelon fields. RKNs used to be controlled in watermelon by fumigation with methyl bromide. However, the removal of methyl bromide from the markets has resulted in an increase of the impact of RKNs on watermelon and other cucurbit crops, as the alternative treatments are less effective than this fumigant. 5This situation has caused a spike in the search for resistances in other Cucurbitaceae genera that could lead to the development of alternative rootstock suitable for managing root-knot nematodes in watermelon crops. Some species belonging to the Cucumis A 5-cm cross section was obtained from the equatorial plane of each of four fruits per replication (sixteen fruits per treatment). Pericarp and approximately 2 mm of flesh and seeds were discarded. The remaining flesh was homogenized (KRUPS KB720, Groupe Seb Iberica, Barcelona, Spain) and kept frozen at -80ºC until metabolite analysis. Reagents for metabolite analysisOrganic acid standards were prepared from their sodium salts or free acids. The chemicals used were of analytical grade and were purchased from Sigma (St. Louis, MO, USA)....

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fruit quality assessment of watermelons grafted onto citron melon rootstock

et al. 2016

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“…These results are in agreement with those reported by Gisbert et al . () who did not find differences among fruit quality from ungrafted, self‐grafted or grafted cv. Vedrantais onto C. metuliferus .…”

Section: Discussionmentioning

confidence: 91%

Cucumis metuliferus is resistant to root‐knot nematode Mi1.2 gene (a)virulent isolates and a promising melon rootstock

et al. 2018

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Pot experiments were carried out to characterize the response of two Cucumis metuliferus accessions (BGV11135 and BGV10762) against Mi1.2 gene (a)virulent Meloidogyne arenaria, M. incognita and M. javanica isolates and to determine the compatibility and the effect on physicochemical properties of fruit melons. In addition, histopathological studies were conducted. One week after transplanting, plants were inoculated with one J2 cm−3 of sterilized sand (200 cm3 pots) and maintained in a growth chamber at 25 °C for 40 days. The susceptible cucumber cv. Dasher II or melon cv. Paloma were included for comparison. The number of egg masses and number of eggs per plant were assessed, and the reproduction index (RI) was calculated as the percentage of eggs produced on the C. metuliferus accessions compared to those produced on the susceptible cultivars. The compatibility and fruit quality were assessed by grafting three scions, two of Charentais type and one of type piel de sapo, under commercial greenhouse conditions. The resistance level of both C. metuliferus accessions ranged from highly resistant (RI < 1%) to resistant (1% ≤ RI ≤ 10%) irrespective of Meloidogyne isolates. Melon plants grafted onto C. metuliferus accession BGV11135 grew as self‐grafted plants without negatively impacting fruit quality traits. Giant cells induced by Meloidogyne spp. on C. metuliferus were in general poorly developed compared to those on cucumber. Furthermore, necrotic areas surrounding the nematode were observed. Cucumis metuliferus accession BGV11135 could be a promising melon rootstock to manage Meloidogyne spp., irrespective of their Mi1.2 (a)virulence, without melon fruit quality reduction.

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“…The aim of this study was to validate the use of a selected citron melon accession collected in Spain as rootstock for watermelon. This accession had been reported previously as highly resistant to nematodes (Gisbert et al, 2017). The effect of this citron melon accession on fruit quality was studied and compared with non-grafted plants, self-grafted plants and plants grafted onto two Cucurbita hybrid rootstocks.…”

Section: Capítulomentioning

confidence: 99%

Section: Plant Materialsmentioning

confidence: 99%