Extension of the vase life of cut sunflower by different vase solutions

Tuğba Kılıç,Soner Kazaz,Merve Uran,Elçin Gözde Ergür Şahin

doi:10.1590/2447-536x.v26i1.2108

Tuğba Kılıç, Soner Kazaz + Show 2 more

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https://doi.org/10.1590/2447-536x.v26i1.2108

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Journal: Ornamental Horticulture	Publication Date: Mar 1, 2020
Citations: 6	License type: CC BY 4.0

Affiliation: Bozok Universitesi, Ankara University

Abstract

Sunflower ( Helianthus annuus L. ) as a cut flower has been an increasing demand in floral industry. However, its vase life is limited because of scape bending, abscission and early wilting of ray flowers. This study was conducted to evaluate the effects of different vase solutions on the vase life of cut sunflower ‘Sunrich Orange’. ‘Sunrich Orange’ was chosen because it is widely used in cut flower industry. Seven treatments were tested: with distilled water (control) as vase solution. The vase life, relative fresh weight, daily and total solution uptake were measured. The results showed that vase life of ‘Sunrich Orange’ sunflower was significantly affected by different vase solutions. The longest vase life was obtained from the STS (12.3 ± 0.3 days) which increased the vase life by 38.1% compared to the control (8.9 ± 0.5 days).

Highlights

Sunflower (Helianthus annuus L.) as a cut flower has been increasing in economic importance in the floral industry (Devecchi, 2005)
The longest vase life was recorded in silver thiosulfate (STS) (12.3 ± 0.3 days) which was improved the vase life by 3.4 days compared to control (8.9 ± 0.5 days)
Control showed the lowest vase life, there was no significant difference between control and the other vase solutions tested: glycolic acid (GIA) (9.1 ± 0.6 days), salicylic acid (SA) (9.3 ± 0.4 days), succinic acid (SUA) (9.5 ± 0.8 days), benzethonium chloride (BC) (9.7 ± 0.3 days), 8-hydroxyquinoline sulphate (8-HQS) (9.9 ± 0.8 days) (Figure 1)

Summary

Introduction

Sunflower (Helianthus annuus L.) as a cut flower has been increasing in economic importance in the floral industry (Devecchi, 2005). Vase life of sunflowers varies between 4-13 days depending on cultivar and is terminated by symptoms such as scape bending, abscission and wilting of ray flowers (Gast, 1995; Mensuali-Sodi and Ferrante, 2005). Scape bending is thought to be correlated with genetic backgrounds (Ferrante et al, 2007) abscission and wilting of ray flowers are known to be caused by senescence. Cut sunflowers can be said to be sensitive to water stress due to bacterial blocking the xylem in the stem (Carlson and Dole, 2013)

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