Variability of maize genotypes in the expression of tolerance to European corn borer (Ostrinia nubilalis Hbn.)

The backbone of modern technologies is the creation tolerant genotypes at ECB with special emphasis on interaction between degree plant damage and metabolic processes as potential responses to stress. During vegetation period 2016 2018, variability response four maize effectiveness insecticides bioinsecticides interdependence dynamics population were examined. Out a total 11,023 attacked plants in both years survey, largest number (4,841) broken stalk above ear height belonged categories C3 C8. In there was no tassel ear, while 3,672 dominated by leaf perforation H2 type. addition fact that more infested observed genotypes, ZP 434 666 type C5, C6 C7 pronounced. foliar treatment chlorantraniliprole two-year research proved be most effective least high damage. contrast, bioinsecticide plants, large deviated from all other treatments well control. Within definition tolerance influence changes secondary metabolites (phytins) seeds observed. It noticed trend positive correlation amount phytin seed (mg g-1) attack moths first generation dissected larvae, negative percentage attacks second generation. Correlation coefficients are expressed: genotype ZP-600, ZP-666 lowest, ie. irrelev?nt. obtained results may great importance future work aimed selection resistant corn borer attack, connected role phytin, an antioxidant phosphorus deposited grain.