Sugar Beet Soaking Seeds to Combat Root-Knot Nematode, Meloidogyne javanica (Treub, 1885) Chitwood, 1949 (Under Field Condition)
Sugar Beet Soaking Seeds to Combat Root-Knot Nematode, Meloidogyne javanica (Treub, 1885) Chitwood, 1949 (Under Field Condition)
Mohamed El-Nasharty Abdel-Aal El-Nasharty1* and Hossam Mohamed El-Sharnoby2
ABSTRACT
Two field trials were carried out through the 2022/23 and 2023/24 seasons in a randomized complete block design with three replicates to assess the effect of sugar beet seed treatment with four nematicides: NemaKick, Tervigo, Smart-N, and Velum Prime , with three dilutions of 250, 500, and 1000 ppm for each one, against root-knot nematode, Meloidogyne javanica. The results demonstrated that, Tervigo and Velum Prime achieved the best germination percentages at a dilution of 1000 ppm after 20 days of sowing, with 97 and 95%, in sequence, while dilutions of 250 and 500 ppm yielded the topmost germination percentages overall with all tested nematicides compared to unsoaked seeds. Velum Prime at 1000 ppm was the most effective dilution on reducing nematode parameters like number of juveniles (J2), host efficiency (RF), and gall index (GI) with 950, 1.1, and 1.0 in sequence, followed by NemaKick without significance in the first season; likewise, in the second season, the results went in the same trend, and the reduction was slightly more in the second season. Velum Prime produced the best sugar beet productivity, including top yield (16.7 tons/feddan), root yield (23.8 tons/feddan), sugar yield (4.3 tons/feddan), and sucrose (18%) at 1000 ppm, with increases of 99.3, 46.9, 95.8, and 33.3% in the first season compared to the second one, followed by NemaKick at the same concentration we proposed utilizing Velum Prim and NemaKick as seed application to manage M. javanica in sugar beet crops to limit its environmental hazardous effects and expenses.
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