Endogenous plant metabolites influence on shelf-life extension of tuberose flowers

V Allwin; K Rama Krishna

doi:10.24154/jhs.v19i1.1851

Authors

V Allwin Department of Horticulture, School of Life Sciences, Central University of Tamil Nadu, Thiruvarur - 610005, Tamil Nadu, India Author
K Rama Krishna Department of Horticulture, School of Life Sciences, Central University of Tamil Nadu, Thiruvarur - 610005, Tamil Nadu, India Author

DOI:

https://doi.org/10.24154/jhs.v19i1.1851

Keywords:

Flower opening, putrescine, room temperature, spermidine, spoilage

Abstract

Tuberose is highly valuable for making floral ornaments, bouquets, artistic garlands, button holes and essential oil. The present study aimed to increase the shelf life of loose flowers by the exogenous application of endogenous plant metabolites i.e. polyamines-putrescine and spermidine at 15 and 20 mg each and with two controls (with/ without packaging). The polyamine-dipped tuberose florets were packed in polyethylene zip covers (56 microns thickness & 1% ventilation), and stored at room temperature (32±1oC and 65 ± 3% RH). Results revealed that putrescine (20 mg) and spermidine (20 mg) treated florets had reduced physiological loss in weight and spoilage percentage with delayed flower opening, and higher sensory acceptance when compared to other treatments and also extended vase life (4 days). The shelf life of untreated flowers without a package was just on the harvested day. Thus, the exogenous application of polyamines had a synergic effect on the shelf life of tuberose loose flowers and can be effectively utilized in the supply chain of tuberose.

Author Biographies

V Allwin , Department of Horticulture, School of Life Sciences, Central University of Tamil Nadu, Thiruvarur - 610005, Tamil Nadu, India

PG Scholar, Department of Horticulture, School of Life Sciences, Central University of Tamil Nadu, Thiruvarur - 610005, Tamil Nadu, India
K Rama Krishna, Department of Horticulture, School of Life Sciences, Central University of Tamil Nadu, Thiruvarur - 610005, Tamil Nadu, India

Assistant Professor, Department of Horticulture, School of Life Sciences, Central University of Tamil Nadu, Thiruvarur - 610005, Tamil Nadu, India

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