The effect of radiation on growth and abscisic acid in wheat seedlings

N. Degani, C. Itai

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Irradiation of dry wheat grains with various doses (10, 30, 70 krads) of gamma rays, increased abscisic acid (ABA) concentrations in roots and leaves of 5 day old seedlings. The ABA concentration was higher in leaves than in roots. Growth inhibition was proportional to irradiation dose and ABA concentration, and roots were more inhibited than leaves. When irradiation (1 and 2 krads) was applied 24 hr after initiation of germination, ABA concentration was higher in roots than in leaves. It is suggested that radiation-induced ABA may upset the hormonal balance during germination, which may affect growth.

Original languageEnglish
Pages (from-to)113-115
Number of pages3
JournalEnvironmental and Experimental Botany
Volume18
Issue number2
DOIs
StatePublished - 1 Jan 1978
Externally publishedYes

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Agronomy and Crop Science
  • Plant Science

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