Effects of Pretreatment of NaOCl, Sucrose, and Benzyladenine on Vase Life and Quality of Cut Flower in Standard Chrysanthemum ‘Jinba’

Abstract

This study was carried out to examine the effects of NaOCl, sucrose, and BA concentration as pretreatment solution on quality and vase life of cut flowers in Dendranthema grandiflorum 'Jinba'. Flower diameter, fresh weight, and vase life in control and 0 mg･L -1 NaOCl treatments decreased, and the treatment with 100~200 mg･L -1 NaOCl was more effective in the quality and vase life. In pretreatment with 2.5% sucrose solution, flower diameter and fresh weight decreased and vase life was shortest due to the rapid leaf wilting. However, pretreatment with 0.1% sucrose solution increased the flower diameter and fresh weight, and showed the longest vase life. When more than 80 mg･L -1 BA was treated with pretreatment solution, flower diameter and fresh weight decreased, and vase life was shortened. With pretreatment of 20 mg･L -1 BA, the flower diameter was bigger than in the other treatments, but it was no effect on fresh weight and vase life. Therefore, it was suggested that pretreatment solution mixed with 200 mg･L -1 NaOCl, 0.1% sucrose, and 20 mg･L -1 BA was the most effective for the quality and vase life of cut flowers in standard chrysanthemum 'Jinba'.

Vase Life and Quality of Cut Flower by NaOCl and Sucrose Treatment as Wet Harvesting Solution in Standard Chrysanthemum ‘Baekma’

“…Vase life of cut flower in holding solution after simulated shipping for 4 days at 5°C by sucrose treatment mixed with 100 mg･L -1 NaOCl as wet harvesting solution in standard chrysanthemum 'Baekma'. early stage when the cut flowers were pretreated in the sucrose solution of at least 2.5% (Yoo et al, 2016). This study also showed that flower diameter and fresh weight decreased in NaOCl mixed with 2.5% sucrose as a wet harvesting solution compared to other treatments.…”

“…NaOCl is a germicide that suppresses propagation of microorganisms, prevents closing of stem vessels, and promotes absorption of moisture. Using 100~200 mg･L -1 NaOCl as pretreatment solution for cut chrysanthemum 'Shinma' increased the quality and vase life of cut flowers (Yoo et al, 2016). Moreover, for cut chrysanthemum 'Baekma', using 50 mg･L -1 NaOCl as a preservative solution was effective for maintaining the freshness of cut flowers (Yoo and Roh, 2015b).…”

“…At the producer level, cut flowers are harvested in the right time and shipped after pretreatment (Seo et al, 2005). Vase life of cut flowers was extended and there was effect on fresh weight, absorbed amount and moisture balance when the following pretreatment solutions were used: 0.002 mL･L -1 Vital oxide or 0.5 mM STS(silver thiosulfate) + 700 mg･L -1 aluminum sulfate + 1% glucose (Yoo et al, 2003) for roses, 3% sucrose + 200 mg･L -1 HQC + 50 mg･L -1 AgNO 3 + 50 mg･L -1 GA 3 (Hwang et al, 2007) for lilies, 500 nL 1-MCP (1-methylcyclopropene) or 1mL STS (Kim et al, 2009;Kim et al, 2010) for irises, and 200 mg･L -1 NaOCl + 0.1% sucrose + 20 mg･L -1 BA (Yoo et al, 2016) for cut chrysanthemums. As such, using pretreatment solutions at the level of producers is effective for extending the life and maintaining the quality of cut flowers, but it also cause deterioration of quality as farms leave the cut flowers for hours in the greenhouse or shed from right after harvest to pretreatment.…”

Improved Quality and Vase Life of Cut Flowers of the Standard Chrysanthemum Cultivar ‘Baekma’ Using Wet Shipping Solutions with NaOCl and ClO2

“…NaOCl and ClO 2 are used as pretreatment agents to maintain the freshness of cut flowers and extend vase life after harvest. It has been reported that when the standard chrysanthemum cultivar 'Jinba' is immersed in a mixed solution of 200 mg‧L -1 NaOCl and 0.1% sucrose for 6 h (Yoo et al, 2016) or immersed in 5 mL‧L -1 NaOCl solution for 4 h (Lee and Lee, 2015), the quality of cut flowers can be improved significantly. In addition, when the chrysanthemum cultivar 'Albatron' and gypsophila cultivar 'Perfecta' were placed in a holding solution of 10 µL‧L -1 ClO 2 , their vase lives were extended (Macnish et al, 2008).…”

“…Many studies have reported post-harvest quality management and extension of vase life of cut chrysanthemums, specifically when cut flowers are treated with NaOCl (Lee and Lee, 2015;Yoo et al, 2016), ClO 2 (Kim et al, 2014;Macnish et al, 2008), methanol (Petridou et al, 2001), or silver thiosulfate (STS) solution (Lee et al, 1996), benzyladenine (BA) (Lee and Lee, 2013;Suh and Kwack, 1994), gibberellic acid (GA 3 ) (Suh et al, 2011), and sucrose (Yoo et al, 2016).…”