Seed germination in Amaranthus retroflexus L. as affected by the photoperiod and age during flower induction of the parent plants

J. Kigel*, Ariella Gibly, M. Negbi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

Seed germination in Amaranthtis retroflexus, a facultative short day plant, was affected by the parental photoperiodic conditions. Seeds from parents grown continuously in short days (SD, 8 h) had a higher dark germination and a greater response (at 30 °C) to a short irradiation or low temperature pretreatment than seeds from plants grown continuously in long days (LD, 16 h). Daily night breaks of 1 h in the middle of the long-night inhibited the SD induction of flowering as well as the SD promotion of germinability. Germinability of seeds produced by plants induced to flower in LD by 1, 2, or 3 SD was lower than that of seeds produced by plants grown continuously in SD, and decreased with the age of the parent plants at the time of flower induction.

Original languageEnglish
Pages (from-to)997-1002
Number of pages6
JournalJournal of Experimental Botany
Volume30
Issue number5
DOIs
StatePublished - Oct 1979

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