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Effects of heat shock and light on the prevention of secondary dormancy induction in Rumex crispus seeds

Zeng Guangwen

Teaching Res. Sect. Plant Physiol., Zhejiang Agri. Univ.

Abstract

Induction of secondary dormancy of Rumex seeds at 25-DEGREES-C in the dark was completely prevented by heat shock at 40-DEGREES-C for 1 hour. However, the effect of heat shock was totally eliminated by the presence of cycloheximide, but not by cordycepin. Heat shock greatly released the repression from the pericarp, thus promoted seed germination. Additive effects of heat shock and red light lillumination were observed. Farred light illumination reversed the effect of red light.

Key words: Heat shock;Secondary dormancy;Rumix Crispus ;

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Citing This Article：

Zeng Guangwen. Effects of heat shock and light on the prevention of secondary dormancy induction in Rumex crispus seeds. Acta Physiol Sin 1991; 43 (2): (in Chinese with English abstract).