Abstract                 Volume:5  Issue-12  Year-2018          Original Research Articles

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Interaction of Sucrose, a Morphactin and 8-Hydroxyquinoline in the Regulation of Petal Senescence of Calendula officinalis L. Cut Flowers
S. Singh1, S. Mukherjee2, S. Jakhar1 and D. Mukherjee1*
1Department of Botany, Kurukshetra University, Kurukshetra - 136119, India
2University College, Kurukshetra University, Kurukshetra - 136119, India
*Corresponding author
Abstract:

Cut flowers of Calendula officinalis L. as scapes were maintained in holding solutions of 0.1M sucrose, 20 M methyl chlorflurenol (a morphactin, MOR), 1.5 mM 8-hydroxyquinoline (8-HQ), sucrose + MOR, sucrose + 8-HQ and sucrose + MOR + 8-HQ in the laboratory under continuous light. Untreated sets were also present where scapes getting the supply of double distilled water (DDW). Combined applications of sucrose + 8-HQ and sucrose + MOR + 8-HQ were very effective in minimizing the loss of fresh weight of scapes and moisture content. These combinations and also individual sucrose treatment as well as sucrose + MOR were very useful to reduce the loss in flower diameter by maintaining hydration and turgidity. Sucrose + MOR + 8-HQ combination was also unique in exhibiting maximum rise in protein amount on fresh weight basis between 0 and 3 and 3 and 6-day and on dry weight basis between 0 and 3-day. Lesser GPOX activity in petals of flower scapes subjected to 8-HQ, MOR and sucrose treatments may suggest lesser production of H2O2. Further, used chemicals such as sucrose, MOR and 8-HQ could reduce the lipid peroxidation process in petals and the best treatment was sucrose + MOR + 8-HQ followed by sucrose + 8-HQ > sucrose + MOR > MOR> 8-HQ > sucrose > DDW.

Keywords: Calendula officinalis Chemical substances Guaiacol peroxidase Lipid peroxidation Protein content Senescence regulation
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How to cite this article:

Singh, S., Mukherjee, S., Jakhar1, S., Mukherjee, D., 2018. Interaction of sucrose, a morphactin and 8-hydroxyquinoline in the regulation of petal senescence of Calendula officinalis L. cut flowers.Int.J.Curr.Res.Biosci.Plantbiol. 5(12): 28-38. doi: https://doi.org/10.20546/ijcrbp.2018.512.004