Response of some grapevine cultivars to the infestation by Meloidogyne javanica under greenhouse conditions in Minia Governorate, Egypt | ||
| Damanhour Journal of Pure and Applied Sciences | ||
| Articles in Press, Accepted Manuscript, Available Online from 25 September 2025 PDF (509.69 K) | ||
| Document Type: Research Article | ||
| DOI: 10.21608/djpas.2025.420472.1000 | ||
| Authors | ||
| Mohamed Omar Sayed1; Hassan Mohamed Hassan1; Ahmed SMH El Roby* 2; Arwa Abd EL Hady Abdel-Hakeem2 | ||
| 1Plant protection Dept., Faculty of Agriculture, Minia University, Minia, Egypt | ||
| 2plant protection Dept., Faculty of Agriculture, Minia University, Minia, Egypt | ||
| Abstract | ||
| A controlled greenhouse experiment was conducted in the Plant Protection Department, Faculty of Agriculture, Minia University, Egypt, to evaluate the susceptibility of ten grapevine cultivars to infection by the root-knot nematode (RKN) Meloidogyne javanica. The materials tested included three rootstocks (Harmony, Richter, and Freedom) grafted with the cultivar Superior, as well as seven own-rooted seedlings (Thompson Seedless, Ruby, Superior, Flame Seedless, H4, Crimson, and Balady). The results indicated significant differences among grapevine cultivars in response to infection by Meloidogyne javanica. Consistent with the scale by Hadisoganda and Sasser and response ratings by Southy (1970), rootstocks Harmony, Freedom, and Richter expressed strong resistance, which could be attributed to a strong genetic background as well as pre-existing documented tolerance against root-knot nematodes. Likewise, cultivars Thompson Seedless, Superior, Ruby, and Balady expressed very strong resistance, which indicates that such cultivars could serve as valuable sources of resistance in breeding programs or safe choices in viticultural settings infested with nematodes. On the contrary, cultivars Flame Seedless, H4, and Crimson expressed slight resistance, which indicates a degree of susceptibility that might suppress vine vigor and productivity under heavy nematode pressure. The diversities noticed highlight deliberate cultivar and rootstock selection as critical in integrated nematode management strategies. Resistance genotypes not only reduce nematode population numbers but also suppress damage, hence establishing sustainable vineyard production. | ||
| Keywords | ||
| Grapevine cultivars; root-knot nematodes; Root gall index; Resistance | ||
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