Effects of Different Light Quality on Endogenous Hormones of Dwarf Cucumber Seedlings

doi:10.11924/j.issn.1000-6850.2013-2977

Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (16): 96-101.doi: 10.11924/j.issn.1000-6850.2013-2977

Special Issue: 生物技术；园艺

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Effects of Different Light Quality on Endogenous Hormones of Dwarf Cucumber Seedlings

Received:2013-11-13 Revised:2013-11-30 Online:2014-06-05 Published:2014-06-05

Abstract

Abstract: In order to study the effects of different light qualities on endogenous hormones of dwarf cucumber seedlings, then a preliminary discussion was made on the dwarf mechanism of dwarf cucumber. By covering sprawl cucumber(Cucumis sativus L.) 129 and dwarf cucumber D0462 with white, blue and Red films to obtain different light qualities.The content of gibberellic acid (GA3), indole acetic acid (IAA) and Abscisic acid (ABA)of different light qualities on leaves and hypocotyls were determined by high performance liquid chromatography. The results showed that it was significantly or very significantly lower than white and red light for the content of endogenous hormones GA3, IAA of leaves and hypocotyls of D0462, after the treatment of blue light. The content of ABA was significantly higher than that of white and red light. Meanwhile, it was significantly lower than 129 for the content of GA3 and IAA of D0462, the content of ABA was significantly higher than 129. After the treatment of blue light, it was significantly lower than white for the ratio GA3/ABA, IAA/ABA, (GA3+IAA)/ABA of hypocotyls of D0462, but also significantly lower than 129. Based on the results, blue light may be the cause of dwarf cucumber D0462 dwarf.

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Effects of Different Light Quality on Endogenous Hormones of Dwarf Cucumber Seedlings

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