Background. Reports indicate the possibility of extending postharvest longevity of cut flowers using artificial light. Hyacinths are increasingly often used as cut flowers nowadays. There is no information concerning postharvest lightening of these flowers using artificial light. The aim of the study was to assess the effect of light colour and light source on postharvest longevity and quality features of cut hyacinths.
Material and methods. Inflorescence shoots of hyacinth cv. ‘Anna Marie’ and ‘Blue Star’ were obtained from plants forced in a greenhouse. They were excised from bulbs. Shoots were cooled at 2°C for 24 h and placed on stands with artificial light. Inflorescence shoots were put into glass vases filled with water. White light, red light and red-blue light were used in the experiment. Philips TLD fluorescent lamps and Leutech LED Tube lamps were used. Quantum irradiance was 20 mmol∙m-2∙s-1. Artificial lighting was applied for 9 h a day. Postharvest longevity and quality of inflorescence shoots were evaluated.
Results. Postharvest longevity of inflorescence shoots of hyacinth ‘Anna Marie’ at the stage of the first dry flower in inflorescence was by about 1.5 days longer after using red-blue and white light than red light. Inflorescence shoots of hyacinth ‘Blue Star’ at the stage of the first dry flower in inflorescence was approx. 1 day longer when red-blue light colour was used in comparison to white light.
Conclusions. The red-blue colour of light extended postharvest longevity of inflorescence shoots in hyacinth ‘Anna Marie’ and ‘Blue Star’. White colour of light prolonged vase life of hyacinth ‘Anna Marie’ and at the stage of ⅓ discoloured flowers in the inflorescence in hyacinth ‘Blue Star’. The red colour of light increased only shoot length of hyacinth ‘Blue Star’ at the stage of ⅓ discoloured flowers in the inflorescence. Weight change of inflorescence shoots did not depend on light colour. The source of light (fluorescent vs. LED) had no effect on postharvest longevity, increase in length or weight change of inflorescence shoots in hyacinth ‘Anna Marie’ and ‘Blue Star’.
|MLA||Krzymińska, Agnieszka, and Małgorzata Karasiewicz. "Postharvest longevity of cut hyacinths depending on light colour and types of lamps." Nauka Przyr. Technol. 11.1 (2017): 55-64. http://dx.doi.org/10.17306/J.NPT.00175|
|APA||Agnieszka Krzymińska, Małgorzata Karasiewicz (2017). Postharvest longevity of cut hyacinths depending on light colour and types of lamps. Nauka Przyr. Technol. 11 (1), 55-64 http://dx.doi.org/10.17306/J.NPT.00175|
|ISO 690||KRZYMIńSKA, Agnieszka, KARASIEWICZ, Małgorzata. Postharvest longevity of cut hyacinths depending on light colour and types of lamps. Nauka Przyr. Technol., 2017, 11.1: 55-64. http://dx.doi.org/10.17306/J.NPT.00175|
Katedra Roślin Ozdobnych
Uniwersytet Przyrodniczy w Poznaniu
ul. Dąbrowskiego 159