Effect of soil and location on field performance of maize hybrids with doubled haploid pedigree

Tamás Spitkó, László Sági, János Pintér, L. Csaba Marton, Beáta Barnabás

Research output: Contribution to journalArticle

Abstract

The response of maize hybrids of doubled haploid (DH) origin to different locations and soils was examined over two years. The performance of twenty-two hybrid combinations was compared to that of two standard hybrids with commercial value in order to investigate how hybrids of DH origin responded to changes in various environmental factors (soil status, water and rainfall supplies, heat stress). The results indicated that the individual genotypes exhibited diverse responses in different years and at different locations. In general, the majority of hybrids performed below the level of the standard mean, though it was possible to find a DH line that resulted in a hybrid capable of producing yields equivalent to that of the standards. The significance of these results is that the DH lines were developed via an in vitro plant regeneration system and were tested in multilocation performance trials after long years of selection. Up till now only DH lines developed in vivo have been introduced into cultivation.

Original languageEnglish
Pages (from-to)987-990
Number of pages4
JournalCereal Research Communications
Volume36
Issue numberSUPPL. 5
DOIs
Publication statusPublished - Dec 1 2008

Keywords

  • Doubled haploid maize
  • Field performance
  • Soil

ASJC Scopus subject areas

  • Physiology
  • Agronomy and Crop Science
  • Genetics

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