01 - 01 january 1970
Apothecary Garden recommends Lighting Technologies’ equipment for growing plants
01 - 01 january 1970
Apothecary Garden, the Botanical garden of Moscow state University named after M.V. Lomonosov, provided feedback after it had tested experimental water-cooled LED lamps of the FLORA LED 150W series on protected ground plants for five years.
“From 2017 to 2019, the equipment was used for growing vegetables. In 2020, Flora LED 150W was placed in a small greenhouse with a climate that simulates seasonal rain forests (deciduous and semi-deciduous trees); year-round high light intensity, but with alternating dry and wet periods. The experiment was carried out on decorative deciduous and flowering plants. The lamps were hung at a height of 1.5–1.8 m above the plants at a distance of around 50 cm from each other.
In the autumn-winter season, Flora LED 150W was used both as an element of supplementary lighting for plants (from 4pm until 8pm). In the shortest daylight hours and with constant snow cover, it was used on the polycarbonate roof of the greenhouse and as the main lighting (from 9am until 8pm).
Two years of observations of plants showed the high efficiency of Flora LED 150W: the vast majority (95%) of light-loving plants did not show signs of etiolation of vegetative organs (leaves, stems, branches), retaining a compact (natural) form of growth and bright color of leaves, many bloomed. Prolonged exposure to bright lighting (up to 10–11 hours of continuous operation) has a depressing effect on the growth and development of shade-loving and shade-tolerant tropical plants such as begonia, calathea, anthurium, spathiphyllum and others: the internodes were greatly shortened, the leaves became smaller and twisted, as if becoming curly, in some cases the pigmentation of the leaves changed from green to pink and reddish.
Conclusion: we recommend using Flora LED 150W in the autumn-winter season as the main source of lighting and as supplementary lighting for growing light-loving tropical plants, placing the device at a height of 1.5-2 m, at a 50 cm distance between the lamps. Also, this equipment can be used for the cultivation of tropical plants that are less demanding in terms of illumination (shade-tolerant and shade-loving). However, in this case, the lamps should be placed at a height of 3 m and above from the tops of plants. When increasing the height of the fixtures, the distance between them can be increased.
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“From 2017 to 2019, the equipment was used for growing vegetables. In 2020, Flora LED 150W was placed in a small greenhouse with a climate that simulates seasonal rain forests (deciduous and semi-deciduous trees); year-round high light intensity, but with alternating dry and wet periods. The experiment was carried out on decorative deciduous and flowering plants. The lamps were hung at a height of 1.5–1.8 m above the plants at a distance of around 50 cm from each other.
In the autumn-winter season, Flora LED 150W was used both as an element of supplementary lighting for plants (from 4pm until 8pm). In the shortest daylight hours and with constant snow cover, it was used on the polycarbonate roof of the greenhouse and as the main lighting (from 9am until 8pm).
Two years of observations of plants showed the high efficiency of Flora LED 150W: the vast majority (95%) of light-loving plants did not show signs of etiolation of vegetative organs (leaves, stems, branches), retaining a compact (natural) form of growth and bright color of leaves, many bloomed. Prolonged exposure to bright lighting (up to 10–11 hours of continuous operation) has a depressing effect on the growth and development of shade-loving and shade-tolerant tropical plants such as begonia, calathea, anthurium, spathiphyllum and others: the internodes were greatly shortened, the leaves became smaller and twisted, as if becoming curly, in some cases the pigmentation of the leaves changed from green to pink and reddish.
Conclusion: we recommend using Flora LED 150W in the autumn-winter season as the main source of lighting and as supplementary lighting for growing light-loving tropical plants, placing the device at a height of 1.5-2 m, at a 50 cm distance between the lamps. Also, this equipment can be used for the cultivation of tropical plants that are less demanding in terms of illumination (shade-tolerant and shade-loving). However, in this case, the lamps should be placed at a height of 3 m and above from the tops of plants. When increasing the height of the fixtures, the distance between them can be increased.
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