Research matters ... Prolonging Lisianthus vase life

Lisianthus (Eustoma grandiflorum) is grown as a cut-flower in the UK. Although the vase life of the flowers can be increased by standing the cut stems in a sugar solution, this treatment also causes damage to the leaves.

In the research described here, stems of 'Mahoroba Pink Flash' with three to four fully open flowers and three to five flower buds were cut and stood in tap water for one-and-a-half hours. The stems were then standardised by reducing their length to 60cm, stripping the leaves from the bottom 15cm of each stem and removing flowers and flower buds to leave just three flowers and three buds per stem.

The prepared stems were next stood for 24 hours in solutions either of four per cent sucrose or of four per cent sucrose plus 10 micromolar abscisic acid (ABA). Some of the sucrose in each solution was labelled with carbon-13.

All stems treated with sucrose alone had at least one damaged leaf, while none were damaged when ABA was added to the sucrose. The distribution of carbon-13 showed that transport of the added sugar to the leaves was blocked by ABA while transport to the flowers was encouraged, as was the transport of sugars already present in the stems.

Effect of Abscisic Acid on the Distribution of Exogenous Carbon Derived from Sucrose Applied to cut Eustoma Flowers by Shimizu-Yumoto, Kondo, Sanoh, Ohsumi and Ichimura (2010). Journal of Horticultural Science & Biotechnology 85 (1): 83-87. The authors' abstract of their manuscript can be seen in full at www.jhortscib.com

Dr Ken Cockshull is Emeritus Fellow at Warwick HRI


Have you registered with us yet?

Register now to enjoy more articles and free email bulletins

Sign up now
Already registered?
Sign in

Before commenting please read our rules for commenting on articles.

If you see a comment you find offensive, you can flag it as inappropriate. In the top right-hand corner of an individual comment, you will see 'flag as inappropriate'. Clicking this prompts us to review the comment. For further information see our rules for commenting on articles.

comments powered by Disqus

Read These Next

Business Planning - Staff are your greatest asset

Business Planning - Staff are your greatest asset

An effective strategy to retain staff is the best way for any business to avoid a potential recruitment crisis, Neville Stein advises.

GroSouth 2017 update

GroSouth 2017 update

First-time and established exhibitors are preparing to showcase products and services at this year's show in West Sussex, Gavin McEwan reports.

Pest & Disease Factsheet - Vine weevil

Pest & Disease Factsheet - Vine weevil

Avoid costly damage by this serious plant pest.


Opinion... Pepper breeders' wealth of knowledge

Opinion... Pepper breeders' wealth of knowledge

Peter Seabrook looks forward to garden centre pepper-tasting weekends.

Opinion... Shining a light on trading with Europe

Opinion... Shining a light on trading with Europe

Accurate figures are notoriously difficult to get at, but without doubt the UK imports a great deal of its ornamental plant requirement.

Opinion... Unbeatable delight of quality plants

Opinion... Unbeatable delight of quality plants

Viewing top-quality plants, both growing and on sale, always gives me pleasure.


Follow us on:
  • Facebook
  • LinkedIn
  • Twitter
  • Google +
Horticulture Jobs
More Horticulture Jobs

Tim Edwards

Boningales Nursery chairman Tim Edwards on the business of ornamentals production
 

Read Tim Edwards

Ornamentals ranking

Top 30 Ornamentals Nurseries by Turnover 2017

Top 30 Ornamentals Nurseries by Turnover 2017

Tough retail pricing policies and Brexit opportunities drive the top 30 growth strategies.

Pest & Disease Tracker bulletin 

The latest pest and disease alerts, how to treat them, plus EAMU updates, sent direct to your inbox.

Sign up here

Are you a landscape supplier?

Horticulture Week Landscape Project Leads

If so, you should be receiving our new service for Horticulture Week subscribers delivering landscape project leads from live, approved, planning applications across the UK.

Peter Seabrook

Inspiration and insight from travels around the horticultural world
 

Read more Peter Seabrook articles