Effects of putrescine on vase life of cut dendrobium inflorescences

Name: Dissanayaka Mudiyanselage, Upali Senarath Bandara

LCSH: Kasetsart University -- Theses. M.S. (Tropical Agriculture) 2019

Classification :.LCCS: SB409.8.D45

LCSH: Kasetsart University. -- Faculty of Agriculture -- Theses

LCSH: Dendrobium -- Postharvest technology

LCSH: Dendrobium -- Postharvest losses

LCSH: Inflorescences

LCSH: Putrescine

LCSH: Polyamines

Abstract: The effects of different concentrations and methods of application of putrescine with 8-hydroxyquinoline sulfate (8-HQS) and sucrose on the flower quality and vase life of cut Dendrobium inflorescences were evaluated. Two consecutive experiments were conducted. Inflorescences of cut Dendrobium cv. Khao Sanan were treated with three different concentrations of putrescine (10 ppm, 20 ppm and 40 ppm), 200 ppm 8-HQS and sucrose (4% and 1%) as pulsing solutions, spraying solutions and vase solutions. Thereafter, best performed treatment was tested with three commercial cut Dendrobium cultivars such as Khao Sanan, Sonia Bom and Queen Pink. The treated inflorescences were placed under 4 µmol m-2 s -1 fluorescent light intensity at 25°C temperature and 80% relative humidity. Physiological changes were examined in every two days interval. The highest bud opening was exhibited from vase solution of 20 ppm putrescine with 200 ppm 8-HQS and 1% sucrose solution (63.25%) and lowest bud yellowing was reported from 10 ppm putrescine with 200 ppm 8-HQS and 1% sucrose solution (9.71%). The maximum vase life was recorded from the vase solution of 10 ppm putrescine with 200 ppm 8-HQS and 1% sucrose (25.6 days) and it was subjected to efficiency test with other two cultivars. The selected vase solution; a mixture of 10 ppm putrescine, 200 ppm 8-HQS and 1% sucrose was significantly prolonged the vase life of cut Dendrobium cvs. Khao Sanan, Sonia Bom and Queen Pink inflorescence. Meanwhile, it increased the quality of flowers, reduced the bud yellowing and ethylene production as well as promoted the bud opening. Therefore, putrescine could be used as the vase treatment for prolonging vase life of cut Dendrobium inflorescences.

Kasetsart University. Office of the University Library

Address: Bangkok

Email: tdckulib@ku.ac.th

Name: Anchaya Mongkolchaiyaphruek

Role: Thesis Advisor

Name: Patchareeya Boonkorkaew

Role: Thesis CO-Advisor

Name: Saichol Ketsa

Role: Thesis CO-Advisor

Created: 2019

Modified: 2025-07-07

Issued: 2025-07-07

วิทยานิพนธ์/Thesis

application/pdf

URL: https://www.lib.ku.ac.th/KUthesis/2562/upali-sen-all.pdf

CallNumber: SB409.8.D45 .D57

eng

DegreeName: Master of Science

Level: Master's Degree

Descipline: Tropical Agriculture

Grantor: Kasetsart University

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