Four new grape hybrids resistant to Meloidogyne javanica
DOI:
https://doi.org/10.52945/rac.v35i3.1453Palabras clave:
Vitis labruscana, Vitis rotundifolia, root-knot nematodeResumen
Root-knotting nematodes are found in vineyards and are associated with grapevine decline. This study aimed to evaluate the resistance of four new hybrids, obtained by crossing Vits labruscana and Vits rotundifolia (IBRE 421, IBBT 481, IBRK 504 and IBMG 631), to Meloidogyne javanica. This study also evaluated three rootstocks (IAC 766, Paulsen 1103, VR 043- 43), widely used and showing resistance levels to M. javanica. The plants were obtained from cuttings, then grown in pots, and inoculated with a population of M. javanica. One year after inoculation, the plants presented no galls on their fine roots. The root nematodes were extracted and quantified. The reproduction factor of M. javanica in all genotypes was close to zero. The tested hybrids are not good hosts for the multiplication of M. javanica. Thus, these new hybrids can be used as a genetic
control strategy of M. javanica.
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Derechos de autor 2022 Marlon Henrique Hahn, Leonardo Packer de Quadros, Danielle Dutra Martinha, Luiz Antonio Biasi, Henrique da Silva Silveira Duarte
Esta obra está bajo una licencia internacional Creative Commons Atribución 4.0.
