EFFECT OF SUPPLEMENTAL LED LIGHTING ON GROWTH AND QUALITY OF Valerianella locusta L. AND ECONOMIC ASPECTS OF CULTIVATION IN AUTUMN CYCLE

Renata Wojciechowska

University of Agriculture in Krakow

Sławomir Kurpaska

University of Agriculture in Krakow

Mateusz Malinowski

University of Agriculture in Krakow

Jakub Sikora

University of Agriculture in Krakow

Anna Krakowiak-Bal

University of Agriculture in Krakow

Olga Długosz-Grochowska

University of Agriculture in Krakow



Abstrakt

New lighting technologies that significantly reduce the energy consumption are in the centre of interest of greenhouse crop producers. In this study, the effect of several LED lights with various spectral composition and high pressure sodium lamp (HPS), as supplemental to solar radiation, on growth and yielding of lamb’s lettuce ‘Nordhollandse’ was tested (in two autumn cultivations). At harvest time, the highest leaf length and area, fresh weight of rosettes and soluble sugars content were obtained under LED lamps that emitted 90% red and 10% blue light. The spectral composition of each kind of LED lamp increased the ascorbic acid content compared to HPS (70% red + 30% blue LED light to the highest extent). Using of LEDs with red and blue diodes reduced the consumption of electricity for V. locusta lighting about 36% to 55% in comparison to HPS. The highest total costs of lamb’s lettuce cultivation was shown under white LEDs.

Słowa kluczowe:

LED light, lamb’s lettuce, growth, yield, energy consumption

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Opublikowane
2016-12-31



Renata Wojciechowska 
University of Agriculture in Krakow
Sławomir Kurpaska 
University of Agriculture in Krakow
Mateusz Malinowski 
University of Agriculture in Krakow
Jakub Sikora 
University of Agriculture in Krakow
Anna Krakowiak-Bal 
University of Agriculture in Krakow
Olga Długosz-Grochowska 
University of Agriculture in Krakow



Licencja

Artykuły są udostępniane na zasadach CC BY 4.0 (do 2021 r. na zasadach CC BY-NC-ND 4.0 międzynarodowe).
Przysłanie artykułu do redakcji oznacza, że nie był on opublikowany wcześniej i nie jest rozpatrywany do publikacji gdzie indziej.

Autor podpisuje oświadczenie o oryginalności dzieła, wkładzie poszczególnych osób i źródle finansowania.


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