Reaction of grapevine rootstocks and cultivars to Meloidogyne incognita, M. arenaria and M. hapla

Abstract

This study aimed to evaluate the reaction of six grapevine rootstocks (MGT 101-14, Ritcher 110, Paulsen 1103, K 5BB, SO4, Salt creek) and two cultivars (Quebranta and Torontel) to three species of the root-knot nematode (Meloidogyne incognita, M. arenaria and M.hapla). The experiment was performed as a completely randomized design with an 8 × 3 factorial scheme and six replicates per treatment. The experimental unit in each replicate comprised a grapevine cutting planted in 3 kg bags with sterilized soil. Cuttings were inoculated with 5000 eggs + juveniles (J2) of M. incognita, M. arenaria and M. hapla. Six months after inoculation, plants were removed from the bags, and the reaction was determined by evaluating the number of galls (NG), number of nematodes per gram of root (NNGR), and reproduction factor (RF). The evaluated rootstocks, MGT 101-14, Ritcher 110, Paulsen 1103, K 5BB, SO4 and Salt Creek, were resistant to M. incognita, M. arenaria and M. hapla, except for Salt creek, which was susceptible to the latter. The Quebranta and Torontel cultivars were susceptible to the Meloidogyne species under study.

Nematode Diversity Associated with Grapevines in İzmir, Manisa, Çanakkale, Balıkesir, and Bilecik Provinces in Türkiye

“…Due to the galls formed on the vine root by these pests' damage, the vascular bundles are blocked, and the plant cannot uptake water and nutrients from the soil. Although many rootstocks such as Richter 110R, Salt Creek, and SO4 have been reported as resistant to Meloidogyne species, resistance can vary depending on climatic conditions, the abundance of nematode populations, and soil conditions (Vega-Callo et al, 2021).…”