Association between field and laboratory predictors of drought tolerance in wheat disomic addition lines

E. Farshadfar, R. Mohammadi, J. Sutka

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In order to locate QTLs controlling field and laboratory indicators of drought tolerance, chromosome addition lines of Agropyron elongatum (donor) in the genetic background of Chinese Spring (recipient) were tested in the field and laboratory of the College of Agriculture, Razi University, Kermanshah, Iran. The plant genetic material was cultivated in the field and laboratory under two different water regimes (irrigated and nonirrigated). High significant differences were found for promptness index (PI), coleoptile length (CL) and root length (RL) under stress and non-stress conditions, indicating the presence of genetic variation and the possibility of selection for these traits. High correlation coefficients were found between PI, germination stress index (GSI) and stress tolerance index (STI), displaying a high association between the indices of field and laboratory predictors of drought tolerance. Field and laboratory predictors of drought tolerance showed that most of the QTLs controlling drought tolerance criteria in Agropyron are located on chromosomes 3E, 5E and 7E, which collectively constitute 84.3% of the additive genetic variance.

Original languageEnglish
Pages (from-to)377-381
Number of pages5
JournalActa Agronomica Hungarica
Volume50
Issue number3
DOIs
Publication statusPublished - 2002

Keywords

  • Alien chromosome addition
  • Drought tolerance
  • Germination stress index
  • Qtls
  • Stress tolerance index

ASJC Scopus subject areas

  • Agronomy and Crop Science

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