Effectiveness of grafting and biostimulants application as a strategy for enhancing tomato nematode resistance

Cukrov, Marin; Podrug, Ivna; Urlić, Branimir; Mandušić, Marija; Žanić, Katja; Radpudić, Emilija; Slatnar, Ana; Dumičić, Gvozden

doi:10.17660/actahortic.2021.1320.37

Cited by 2 publications

(3 citation statements)

References 11 publications

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“…In our study, grafting was an effective management strategy because RKN population densities were significantly lower in three of the four rootstocks evaluated in comparison with the nongrafted, susceptible control. However, we still observed RKN feeding and reproduction on these rootstocks, which was also observed in previous studies (Cukrov et al 2021;Lopez-Perez et al 2006;Rivard et al 2010). Complete eradication of RKN is not possible, but using grafting with other management strategies, such as soil solarization and rotation with nonhost crops may be a viable and sustainable option for high tunnel growers.…”

Section: Discussionsupporting

confidence: 85%

“…Treatments included four rootstocks: Arnold (Seedway, Hall, NY), Estamino (Johnny's Selected Seeds, Winslow, ME), Shin Cheong Gang (Johnny's Selected Seeds), and Maxifort (Seedway) with a nongrafted cultivar as the control. 'Arnold', 'Estamino', and 'Maxifort' are reported to have moderate resistance to M. incognita (Cukrov et al 2021;Rivard et al 2010;Testen et al 2021) Similar to the other rootstocks, 'Shin Cheong Gang' is also an F1 hybrid and has been reported to have resistance to Meloidogyne spp. (Cornell University 2023).…”

Section: Methodsmentioning

confidence: 95%

“…Yet, 'Maxifort' was the most affected rootstock in a study observing transplants inoculated with M. incognita of 'Matissimo' tomato (self-grafted or grafted on rootstock 'Arnold' and 'Maxifort'). 'Maxifort' was observed to have four times the amount of galling in comparison with 'Arnold' (Cukrov et al 2021). However, even when soil temperatures exceed 28 C, grafted treatments have shown to have significantly higher tomato fruit yield in comparison with nongrafted controls (Lopez-Perez et al 2006).…”

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confidence: 92%

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Managing Southern Root-knot Nematode in Kentucky High Tunnels Using Grafted Tomato

Bajek,

Rudolph

2023

horts

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Infection by root-knot nematode (Meloidogyne spp.; RKN) leads to root galling and reduces the host plant’s ability to take up water and nutrients. Protected cropping systems, such as high tunnels, create conducive environments for RKN through increased soil temperatures and more intensive crop production. In Kentucky, high tunnel production has increased in the past 10 years, with tomato being the most cultivated high tunnel crop. This has contributed to a lack of rotation and increased pressure from RKN. Tomato grafting with RKN-resistant rootstock is a nonchemical management strategy that has shown promise in other regions of the United States. The primary objective of this 2-year, two-site study (Knox and Boyle Counties) was to determine whether using grafted resistant rootstock could be a viable management strategy in high tunnels naturally infested with Meloidogyne incognita. The rootstocks included ‘Arnold’, ‘Maxifort’, ‘Shin Cheong Gang’, and ‘Estamino’. ‘Primo Red’ and ‘Cherokee Purple’ were the scions and nongrafted controls in Knox and Boyle Counties, respectively. In 2020 and 2021 in Knox County, three of the four grafted treatments produced at least 38% higher yield than the nongrafted control. Grafted treatments had at least 44% fewer RKN eggs/g of dry root compared with the nongrafted control in both years. In 2021 and 2022 in Boyle County, tomato yield was at least five times greater in all four of the grafted treatments compared with the nongrafted control. In 2021, the nongrafted control had three times more RKN eggs/g dried root compared with three of the four grafted treatments. In 2022 in Boyle County, the nongrafted control had four times more RKN eggs/g of dried root than all grafted treatments. In both years and locations, ‘Arnold’ and ‘Estamino’ treatments had higher yield and lower RKN population densities in soil and roots compared with the nongrafted controls. Utilization of resistant rootstock will help Kentucky growers maintain crop productivity in soils infested with RKN, but should be combined with other management methods for long-term resiliency of the high tunnel system.