Flower Quality in Roses (Rosa Hybrida) Sprayed with Ascorbic Acid

Colombia is a country recognized for its variety of fresh flowers for export, among which roses represent a significant quantity. However, cut flowers must meet some quality requirements imposed by the international market. Ascorbic acid in living organisms has an extensive function as a free radica...

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Bibliographic Details
Published in:Gesunde Pflanzen 2022-06, Vol.74 (2), p.347-355
Main Authors: Casierra-Posada, Fánor, Carreño-Patiño, Alexander, Castro-Gutiérrez, Camilo
Format: Article
Language:English
Subjects:
Acids
Agricultural products
Agriculture
Ascorbic acid
Biomedical and Life Sciences
Biosynthesis
Chlorophyll
Chloroplasts
Cultivars
Farm buildings
Flowers
Free radicals
Hormones
Life Sciences
Nutritive value
Original Article
Originalbeitrag
Oxidative stress
Photosynthesis
Photosynthetic apparatus
Plant Pathology
Spraying
Statistical analysis
Stems
Vitamin C
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Summary:Colombia is a country recognized for its variety of fresh flowers for export, among which roses represent a significant quantity. However, cut flowers must meet some quality requirements imposed by the international market. Ascorbic acid in living organisms has an extensive function as a free radical scavenger; therefore, it reduces the negative effects of oxidative stress. It is also involved in the biosynthesis of several hormones, has many functions in chloroplasts, and is a fundamental compound for the correct functioning of the photosynthetic apparatus. The exogenous application of ascorbic acid improves the quality and nutritional value of agricultural products and induces stress resistance in plants. A greenhouse study was carried out in Cota, Colombia, with the objective of improving the quality of rose flowers by spraying ascorbic acid in concentrations of 0.0 (control), 600, and 1200 mg L −1 in the Escimo, Latin Beauty, and Freedom cultivars. In response to the spraying, an increase in stem length and stem thickness was observed in all cultivars which was directly proportional to the concentration of ascorbic acid applied. There was no clear trend found in the response of cultivars to ascorbate regarding head size and chlorophyll content (SPAD) since in some cultivars, the values of these variables increased or decreased with statistically significant differences. As a result, spraying with ascorbic acid significantly improves some components of the quality of rose cut flowers, even though the response is highly dependent on the cultivar.
ISSN:0367-4223
1439-0345
DOI:10.1007/s10343-021-00613-y