Studies on the tolerance of maize hybrids to western corn rootworm (Diabrotica virgifera virgifera leconte)

L. Márton, C. Szoke, J. Pintér, E. Bodnár

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The corn rootworm, which has been introduced from North America, is becoming an increasingly serious problem for maize producers in Hungary. In several regions the damage it causes has reached the threshold of economic loss, making it the most problematic of all the biotic and abiotic stress factors faced by maize growers. The aim of the research was to determine the level of corn rootworm tolerance in various maize genotypes and to use selection methods to breed maize hybrids whose tolerance level provided satisfactory protection against this biotic stress factor. The present paper describes studies on the tolerance level of 41 Martonvásár hybrids at three locations in two years and that of the parental lines at two locations in one year. Significant differences were found in the tolerance levels of the hybrids, and a close positive correlation was revealed in 2007 between root-pull resistance and yield. Root regeneration is also an important factor, good values of which were found for three hybrids. Inbred lines had smaller root diameter and lower root pull resistance than hybrids. The heterosis on root diameter was 140%, while in case of root pull resistance the heterosis is 123%.

Original languageEnglish
Pages (from-to)217-220
Number of pages4
JournalMaydica
Volume54
Issue number2-3
Publication statusPublished - 2009

Fingerprint

Diabrotica virgifera virgifera
Zea mays
corn
Hybrid Vigor
rootworms
biotic stress
heterosis
economic threshold
Hungary
selection methods
North America
inbred lines
abiotic stress
Regeneration
growers
Genotype
Economics
breeds
genotype
Research

Keywords

  • Resistance breeding
  • Tolerance level
  • Western corn rootworm

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Genetics
  • Plant Science

Cite this

Studies on the tolerance of maize hybrids to western corn rootworm (Diabrotica virgifera virgifera leconte). / Márton, L.; Szoke, C.; Pintér, J.; Bodnár, E.

In: Maydica, Vol. 54, No. 2-3, 2009, p. 217-220.

Research output: Contribution to journalArticle

Márton, L. ; Szoke, C. ; Pintér, J. ; Bodnár, E. / Studies on the tolerance of maize hybrids to western corn rootworm (Diabrotica virgifera virgifera leconte). In: Maydica. 2009 ; Vol. 54, No. 2-3. pp. 217-220.
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