Influence of various types of light on growth and physicochemical composition of blueberry (Vaccinium corymbosum L.) leaves
Influence of light on blueberry growth
Monika Figiel-Kroczyńska
Department of Horticulture, West Pomeranian University of Technology Szczecin, Słowackiego 17 Street, 71-434 Szczecin, Polandhttps://orcid.org/0000-0003-4378-4004
Ireneusz Ochmian
ZUT w SzczecinieMarcelina Krupa-Małkiewiecz
Department of Plant Genetics, Breeding and Biotechnology, West Pomeranian University of Technology Szczecin, Szczecin 71-434, Polandhttps://orcid.org/0000-0002-4333-9122
Sabina Lachowicz
Department of Fermentation and Cereals Technology, Wroclaw University of Environmental and Life Sciences, Chełmońskiego 37 Street, 51-630 Wrocław, Polandhttps://orcid.org/0000-0001-6182-0211
Abstract
It is important to use light that has a positive effect on plants. For plant growers, achieving the lowest possible cost of shrub production is crucial. We investigated the influence of light (white and violet LEDs as well as fluorescent white and red light) on the rooting and growth of blueberry cuttings (V. corymbosum L.) 'Aurora' and 'Huron'. Blueberry cuttings (4 cm tall) were planted into boxes with peat, which were placed in a phytotron at 22 °C and illuminated for 16 hours a day. The plants died under the red fluorescent light source and, therefore, we discontinued its use. The other three light sources had a positive effect on plant growth and development. The light source had little effect on the content of macroelements in the leaves. Plants grown under white fluorescent and white LED light did not significantly differ in the height (22.0-25.8 cm), proline (4.67-7.23 μmol g-1), and polyphenol content (4987-5212 mg 100 g-1). In both cultivars, the violet LED light reduced plant growth and increased the content of polyphenols (6,448 mg 100 g-1) and proline (8.11-9.06 μmol g-1) in the leaves, which may indicate abiotic stress.
During the rooting of highbush blueberry cuttings, it is advisable to use white LED light. It has a positive economic impact on crop production due to low electricity consumption and it benefits the environment by eliminating mercury. The plant quality is similar to that of fluorescent white light.
Keywords:
phytotron, LED light, polyphenols, proline, macro and microelementsReferences
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Department of Horticulture, West Pomeranian University of Technology Szczecin, Słowackiego 17 Street, 71-434 Szczecin, Poland https://orcid.org/0000-0003-4378-4004
ZUT w Szczecinie
Department of Plant Genetics, Breeding and Biotechnology, West Pomeranian University of Technology Szczecin, Szczecin 71-434, Poland https://orcid.org/0000-0002-4333-9122
Department of Fermentation and Cereals Technology, Wroclaw University of Environmental and Life Sciences, Chełmońskiego 37 Street, 51-630 Wrocław, Poland https://orcid.org/0000-0001-6182-0211
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