Effect of Citrullus amarus accessions on the population dynamics of Meloidogyne incognita and M. javanica and watermelon yield

García-Mendívil, Helio A.; Sorribas, Francisco Javier

doi:10.1016/j.scienta.2020.109680

Cited by 9 publications

(6 citation statements)

References 28 publications

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“…In fact, the thermal requirements of the M. incognita isolate used in the current study to complete its life cycle on P. vulgaris ( Tb = 11.1 °C; S = 476 DD) were similar to those obtained for the same nematode species in zucchini squash ( Tb = 12 °C; S = 455 DD) [ 17 ] and cucumber ( Tb = 11.4 °C; S = 500 DD) [ 4 ] but differed from the one on watermelon ( Tb = 14 °C; S = 500 DD) [ 5 ] ( Figure 3 ). It is accepted that watermelon is a poor host of Meloidogyne [ 5 , 23 ]. That is, this plant species is less suitable for increasing nematode densities than others for a given period of time, as the phenology model shows.…”

Section: Discussionmentioning

confidence: 99%

Creation and Validation of a Temperature-Based Phenology Model for Meloidogyne incognita on Common Bean

Giné

Monfort

Sorribas

2021

Plants

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The thermal requirements of Meloidogyne incognita on Phaseolus vulgaris in a set of constant soil temperatures were determined and the phenology model was validated at fluctuating soil temperatures. The base temperature (Tb) and the thermal constant (S) from nematode inoculation to females starting to lay eggs were 11.3 °C and 323 accumulated degree days (DD), respectively; Tb = 10.5 °C and S = 147 DD from egg production to emergence of juveniles; and Tb = 11.1 °C and S = 476 DD for life cycle completion. At fluctuating soil temperatures in pots with the minimum lower than Tb and the maximum higher than To (optimal temperature), the DD calculation was carried out by the average daily temperature–Tb (ADTb) and the single sine method over Tb (SSTb) with horizontal, intermediate, and vertical cutoffs. The most accurate were the ADTb and the SSTb with horizontal and intermediate cutoffs (93–106% of the predicted value) but the vertical underestimated the accumulated DD (75–82% of the predicted value). When fluctuating soil temperatures were between Tb and To in a plastic greenhouse, only the ADTb method was used. Life cycle completion was observed around 465 DD (accuracy between 0.95 and 0.99) at four different transplanting dates.

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Section: Discussionmentioning

confidence: 99%

Creation and Validation of a Temperature-Based Phenology Model for Meloidogyne incognita on Common Bean

Giné

Monfort

Sorribas

2021

Plants

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“…A C. amarus accession resistant to M. incognita was identified as a potential rootstock for managing root‐knot nematodes in watermelon 32 . Watermelon scions grafted on two root‐knot nematode resistant C. amarus accessions produced yields that were greater than nongrafted watermelon grown in M. incognita infested soil under greenhouse cultivation 33 …”

Section: Nematode and Disease Resistant Rootstocks For Cucurbitaceous Vegetable Cropsmentioning

confidence: 99%

“…32 Watermelon scions grafted on two root-knot nematode resistant C. amarus accessions produced yields that were greater than nongrafted watermelon grown in M. incognita infested soil under greenhouse cultivation. 33 Carolina Strongback wild watermelon rootstock is reported to have moderate resistance to root-knot nematode. 34 However, in 2-year field tests inoculated with M. incognita, non-grafted Fascination watermelon and Fascination watermelon grafted on Carolina Strongback rootstock did not differ significantly (P ≤ 0.05) for percentages of root galling.…”

Section: Rootstocks For Tomato Resistant To Both Root-knot Nematode and Southern Blightmentioning

confidence: 99%

Grafting for managing vegetable crop pests

Thies

2021

Pest Management Science

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Nematode and disease resistant rootstocks have been developed for many vegetable crops including tomato, eggplant, melon, watermelon, and cucumber and are being utilized by an increasing number of growers. Grafting commercially desirable vegetable scions on nematode and disease resistant rootstocks has been significantly stimulated by the need for an alternative to banned soil fumigation with methyl bromide, which had been the primary method for managing soil‐borne nematodes, diseases, and weeds. Rootstocks resistant to root‐knot nematodes (Meloidogyne spp.) and diseases including Fusarium wilt, Fusarium crown and root rot, Verticillium wilt, bacterial wilt, Southern blight, and sudden wilt have been developed and many are available commercially. New technologies such as transcriptomics, identification of differentially expressed genes, transgene rootstocks, and RNAi silencing are being used in the development of vegetable rootstocks which are resistant to pests, salt tolerant, and heat and cold tolerant. Overall, grafting has proven to be a successful and environmentally safe method for managing root‐knot nematodes and soil‐borne diseases by reducing infection, disease development, and inoculum build‐up in the soil, which is especially important for growth of healthy subsequent crops. © 2021 Society of Chemical Industry.

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“…Genetic resistance for nematode control can be used through cultivars or rootstocks carrying resistance (R) gene(s). Unfortunately, resistant cultivars or rootstocks are only available for tomato (conferred by the Mi1.2 gene), pepper ( N, Me1, Me3/Me7 genes), aubergine ( Solanum torvum ), and watermelon ( Citrullus amarus ) ( Thies et al., 2010 ; Thies et al., 2015a ; Thies et al., 2015b ; Thies et al., 2016 ; García-Mendívil et al., 2019 ; García-Mendívil and Sorribas, 2021 ). Regarding melon and cucumber crops, despite some experimental rootstocks, such as Cucumis metuliferus , have been characterized as resistant to the most widely distributed RKN ( Sigüenza et al., 2005 ; Kokalis-Burelle and Rosskopf, 2011 ; Guan et al., 2014 ; Gisbert et al., 2017 ; Ling et al., 2017 ; Expósito et al., 2019 ) there are not any available commercially at this time.…”

Section: Introductionmentioning

confidence: 99%

Crop rotation with Meloidogyne-resistant germplasm is useful to manage and revert the (a)virulent populations of Mi1.2 gene and reduce yield losses

et al. 2023

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A rotation sequence of ungrafted and grafted tomato-melon-pepper-watermelon on resistant rootstocks ‘Brigeor’, Cucumis metuliferus, ‘Oscos’ and Citrullus amarus, respectively, was carried out in a plastic greenhouse, ending with a susceptible or resistant tomato crop. The rotation was conducted in plots infested by an avirulent (Avi) or a partially virulent (Vi) Meloidogyne incognita population to the Mi1.2 gene. At the beginning of the study, the reproduction index (RI, relative reproduction in the resistant respect susceptible tomato) of Avi and Vi populations was 1.3% and 21.6%, respectively. Soil nematode density at transplanting (Pi) and at the end (Pf) of each crop, disease severity and crop yield were determined. Moreover, the putative virulence selection and fitness cost were determined at the end of each crop in pot tests. In addition, a histopathological study was carried out 15 days after nematode inoculation in pot test. The volume and number of nuclei per giant cell (GC) and the number of GC, their volume and the number of nuclei per feeding site in susceptible watermelon and pepper were compared with C. amarus and resistant pepper. At the beginning of the study, the Pi of Avi and Vi plots did not differ between susceptible and resistant germplasm. At the end of the rotation, the Pf of Avi was 1.2 the Pi in susceptible and 0.06 in resistant, the cumulative yield of grafted crops was 1.82 times higher than that of the ungrafted susceptible ones, and the RI in resistant tomato less than 10% irrespective of the rotation sequence. Concerning the Vi, Pf was below the detection level at the end of the rotation in resistant and 3 times Pi in the susceptible. The cumulative yield of grafted crops was 2.83 times higher than that of the ungrafted and the RI in resistant tomato was 7.6%, losing the population’s virulence. In the histopathological study, no differences in number of GC per feeding site were observed in watermelon compared to C. amarus, but they were more voluminous and contained higher number of nuclei per GC and per feeding site. Regarding pepper, Avi population did not penetrate resistant rootstock.

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Effect of Citrullus amarus accessions on the population dynamics of Meloidogyne incognita and M. javanica and watermelon yield

Cited by 9 publications

References 28 publications

Creation and Validation of a Temperature-Based Phenology Model for Meloidogyne incognita on Common Bean

Creation and Validation of a Temperature-Based Phenology Model for Meloidogyne incognita on Common Bean

Grafting for managing vegetable crop pests

Crop rotation with Meloidogyne-resistant germplasm is useful to manage and revert the (a)virulent populations of Mi1.2 gene and reduce yield losses

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