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Type of publication: Straipsnis nerecenzuojamoje Lietuvos konferencijos medžiagoje / Article in non-peer-reviewed Lithuanian conference proceedings (P2c)
Field of Science: Agronomija / Agronomy (A001)
Author(s): Kukcinavičiūtė, Milda;Brazaitytė, Aušra
Contributor(s): Žilėnaitė, Liuda
Title: UA-V spinduliuotės poveikis įvairių mikrožalumynų augimo biometriniams rodikliams
Other Title: UA-V radiation influence to growth biometric parameters of different microgreens
Is part of: Jaunasis mokslininkas 2014: studentų mokslinės konferencijos pranešimų rinkinys / Aleksandro Stulginskio universitetas. Agronomijos fakultetas. Akademija,, 2014
Extent: p. 173–176
Date: 2014
Keywords: Microgreens;Hypocotyl height;Plant height;Leaf assimilation area;UV-A radiation
Abstract: The objective of this study was to evaluate the impact of UV-A irradiation on the biometric parameters of Brassica rapa var. chinensis L., ‘Rubi’, Ocimum basilicum L., ‘Sweet Genovese’ and Beta vulgaris L., ‘Bulls Blood’ microgreens. This investigation was performed in the Lithuanian Research Centre for Agriculture and Forestry, Institute of Horticulture. A system of five high-power solid-state lighting modules with the basal 447, 638, 665 and 731 nm light-emitting diodes (LEDs) supplemented with one of three 366, 390 or 402 nm UV-A LEDs were used in the experiments. Photosynthetic photon flux density (PPFD) of UV-A LEDs was 12.4 μmol m-2 s-1 (25 cm from the light source). Total PPFD was 300 μmol m-2 s-1. Biometric parameters of plant growth which were measured include leaf assimilation area, fresh weight, hypocotyl lenght and plant height. The results show that the effect of UV-A irradiation on plants is different and depends on plant species. The most positive effect of supplemental UV-A irradiation in basal illumination was determined on leaf area and fresh weight of red pak choi microgreens, especially under supplemental 366 and 390 nm illumination. No significant effect of UV-A on hypocotyl lenght was observed
Affiliation(s): Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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