Genetic analysis of phenotypic stability parameters in wheat (triticumaestivum l.)

E. Farshadfar, M. Farshadfar, J. Sutka

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The genetic properties of different types of stability parameters for individual genotypes were investigated using an eight-parent half-diallel cross in a randomized complete block design with three replications. Data pertaining to the parents and were subjected to Griffing and Hayman methods for the genetic analysis of eight types of stability statistics. The results of analysis of variance showed that genetic variation exists for almost all the stability parameters. Moderate heritability estimates were observed for coefficient of variation (CVi) and superiority measure (Pi). The estimates of variance components suggested that genes controlling environmental variance (S 2i), regression coefficient (bi), ecovalence (W2i) and Pi are predominantly additive, while non-additive gene action was predominant for CVi, stability variance (&sigm;2i) and coefficient of determination (R2i). The results of combining ability effects indicated that the best general combiners for the improvement of adaptation were Chinese Spring and Shakha, while the best stable specific combination was Shakha/Kobomugi.

Original languageEnglish
Pages (from-to)109-116
Number of pages8
JournalActa Agronomica Hungarica
Volume47
Issue number2
Publication statusPublished - Dec 1 1999

Keywords

  • Combining ability
  • Diallel crosses
  • Gene action
  • Heritability
  • Phenotypic stability

ASJC Scopus subject areas

  • Agronomy and Crop Science

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