A quantitative and qualitative assessment of sugar beet genotype resistance to root-knot nematode, Meloidogyne incognita.

ABSTRACT: Sugar beet productivity is highly constrained by the root-knot nematode (RKN) Meloidogyne incognita. Eight sugar beet genotypes were screened under greenhouse conditions for their susceptibility to M. incognita according to an adapted quantitative scheme for assignment Canto-Saenz's host suitability (resistance) designations (AQSCS). Besides, the degree of susceptibility or tolerance of the examined genotypes was recorded by the modified host-parasite index (MHPI) scale based on yield performance. In addition, single nucleotide polymorphism (SNP) was also determined. Sugar beet genotypes have been classified into four categories for their susceptibility or tolerance according to the AQSCS scale. The first category, the moderately resistant (MR) group implies only one variety

SUBMITTER: Gohar IMA 

PROVIDER: S-EPMC9881751 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature