Analysis of the quality of wheat varieties at extremely high temperatures

Krisztina Balla, Ildikó Karsai, Ottó Veisz

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Nowadays the abiotic stress factor that causes the greatest problems for crop production is extremely high temperature. The aim of the research was to determine the heat tolerance of various wheat varieties and to measure changes in their quality in two phases of development (shooting and grain filling) under controlled phytotronic conditions. Changes in the yield quantity, the grain diameter, the protein content and the ratio of protein components were examined in plants exposed to extremely high temperatures. It could be seen from the results that in the earlier developmental phase the varieties were much more sensitive to heat stress than in the adult stage. Heat stress during grain filling led to a significant reduction in yield parameters. Decreasing values of UPP% (unextractable polymeric protein) and the Glu/Gli (glutenin to gliadin) ratio generally indicate a deterioration in quality despite the increase in the protein content. The plants suffered heat shock when treated at 41°C.

Original languageEnglish
Pages (from-to)13-16
Number of pages4
JournalCereal Research Communications
Volume37
Issue numberSUPPL.1
DOIs
Publication statusPublished - 2009

Keywords

  • Glutenin/gliadin ratio
  • Grain yield
  • Heat stress
  • Protein content
  • Winter wheat

ASJC Scopus subject areas

  • Physiology
  • Agronomy and Crop Science
  • Genetics

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