Research matters ... extend the life of carnations

Pot-grown carnations are very popular in Japan but are not yet as popular in the UK. One reason may be that their display life in the home is not especially long.

In the experiments reported here, "Annemarie" plants with at least three open flowers were transferred to growth rooms at 20 degsC. In one experiment, the rooms were lit for 12 hours a day. For one set of plants, the lighting was at low intensity every day but another set received low-intensity light for two days and high-intensity light every third day. Flower buds were removed to leave 20, 50 or 80 buds on each plant.

The high-intensity light treatment extended display life to more than 18 days and the largest number of open flowers under these conditions was found on plants that had 80 flower buds. By contrast, in the "low-light" treatment, the longest display life and the most open flowers were on plants with only 20 flower buds.

This suggests that growers could lengthen the display life of potted carnations marketed in winter by limiting the number of buds each plant carries and encouraging customers to move their plants to high-light areas whenever possible.

Effects of Light Intensity, Number of Florets, and Water Stress on Quality and Soluble Carbohydrate Contents of Potted Carnation by Yamane, Inotsume, Nakajima, Wada, Yamaki and Shimizu (2010). Journal of the Japanese Society for Horticultural Science 79 (3): 301-307. The authors' abstract is available online at www.jstage.jst.go.jp/browse/jjshs1 from where the article can be downloaded as a PDF.


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

Tree planting guide - three basic rules

Tree planting guide - three basic rules

Choosing the right plant, correct planting procedure and best aftercare are the three basic rules for sucessful tree planting, Sally Drury explains.

Tree planting - what are the benefits of planting trees?

Tree planting - what are the benefits of planting trees?

Mitigating climate change, providing windbreaks and reducing the risk of soil erosion are some of the best reasons for planting trees, says Sally Drury.

Tree and shrubs - nursery market

Tree and shrubs - nursery market

Growers are more optimistic now that garden designers and landscape architects are seeking more mature trees and shrubs, writes Sally Drury.


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.

Editorial ... More analysis and insight from bumper HW issue

Editorial ... More analysis and insight from bumper HW issue

Welcome to this bumper 72-page July edition of Horticulture Week magazine, packed with exclusive analysis, insight and expert advice on the biggest issues impacting all sectors of the UK horticulture industry right now.

Edwards: Will a weak pound and tariffs on imported stock be good for UK nursery production?

Edwards: Will a weak pound and tariffs on imported stock be good for UK nursery production?

At the time of writing - a few days after the general election - sterling has weakened and we still have no idea of what Brexit means.


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