Articles
Sustainable postharvest temperature and disease management of roses
Article number
1461_18
Pages
163 – 170
Language
English
Abstract
The most important postharvest factor in longevity of rose (Rosa hybrida L.) cut flowers is temperature.
The respiration of rose flowers increases exponentially with increasing temperature.
Q10 value between 0 and 10°C is 3 for rose flowers.
As the storage temperature increases from 0 to 15°C, the vase life of rose flowers falls.
For many cut flowers, storage for 5 days at 0°C did not shorten the vase life.
In roses, even storage at 0°C may result in some loss of vase life, together with an increase in the incidence of Botrytis. At low temperature, not only senescence is greatly slowed, but also fungal development is reduced.
Besides, there is no need to storage or transport rose flowers in water at low temperatures.
However, wet storage or transport is necessary at temperatures higher than 10°C to keep flower longevity.
Therefore, the living rose flowers and plants which are not sensitive to chilling injury should be stored and transported at temperature close to 0°C to keep them fresh from grower to consumer.
However, lower temperatures mean more energy to use.
Thus, sustainable cooling systems and transport by sea and rail are needed for sustainability of rose industry to reduce energy consumption.
Disease life cycle and triangle (pathogen, host, environment) which turns now into pyramid with beneficial microbiomes on roses should be considered in postharvest control strategies to avoid using harmful chemicals against pathogens. Botrytis cinerea infection is a common problem for both pot miniature and cut rose growers especially after packaging during storage and transport in humid conditions to consumers.
Growers need sustainable solutions to this significant matter which causes both quality and quantity losses.
NaOCl spray treatments eliminate the infections on rose plants and flower buds.
UV-C light, irradiation and anti-microbial packaging are other ecofriendly solutions against disease development for cut roses.
As conclusion sustainable postharvest temperature and disease management contribute to sustainability of the rose sector not only by reducing energy consumption and harmful chemicals but also by preventing postharvest losses.
The respiration of rose flowers increases exponentially with increasing temperature.
Q10 value between 0 and 10°C is 3 for rose flowers.
As the storage temperature increases from 0 to 15°C, the vase life of rose flowers falls.
For many cut flowers, storage for 5 days at 0°C did not shorten the vase life.
In roses, even storage at 0°C may result in some loss of vase life, together with an increase in the incidence of Botrytis. At low temperature, not only senescence is greatly slowed, but also fungal development is reduced.
Besides, there is no need to storage or transport rose flowers in water at low temperatures.
However, wet storage or transport is necessary at temperatures higher than 10°C to keep flower longevity.
Therefore, the living rose flowers and plants which are not sensitive to chilling injury should be stored and transported at temperature close to 0°C to keep them fresh from grower to consumer.
However, lower temperatures mean more energy to use.
Thus, sustainable cooling systems and transport by sea and rail are needed for sustainability of rose industry to reduce energy consumption.
Disease life cycle and triangle (pathogen, host, environment) which turns now into pyramid with beneficial microbiomes on roses should be considered in postharvest control strategies to avoid using harmful chemicals against pathogens. Botrytis cinerea infection is a common problem for both pot miniature and cut rose growers especially after packaging during storage and transport in humid conditions to consumers.
Growers need sustainable solutions to this significant matter which causes both quality and quantity losses.
NaOCl spray treatments eliminate the infections on rose plants and flower buds.
UV-C light, irradiation and anti-microbial packaging are other ecofriendly solutions against disease development for cut roses.
As conclusion sustainable postharvest temperature and disease management contribute to sustainability of the rose sector not only by reducing energy consumption and harmful chemicals but also by preventing postharvest losses.
Authors
F.G. Çelikel
Keywords
cut flowers, potted miniature roses, Botrytis, temperature, cooling, transport, NaOCl
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