Woody plants seedlings irradiation lighting parameters by using LED transmitters in small-sized irradiation installations

• Published in: IOP conference series. Earth and environmental science Vol. 786; no. 1; pp. 12017 - 12021
• Main Authors: Ivushkin, D S, Petrukhin, V A, Volobuev, S V, Feklistov, A S, Prokofiev, P V
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.06.2021
• Subjects: Agricultural production; Artificial environments; Crop production; Crops; Cultivation; Irradiation; Parameters; Photosynthetically active radiation; Phytotrons; Planting; Productivity; Radiation; Seedlings; Technology; Transmitters; Woody plants
• ISSN: 1755-1307; 1755-1315
• DOI: 10.1088/1755-1315/786/1/012017

Abstract The use of planting material with a root-balled tree system is one of the promising directions for creating artificial plantations. It is associated with radical changes in the cultivation of planting material and significant changes in the forest crops production technology [1]. The technology of widespread, woody plants year-round cultivation in the artificial environment can be implemented by using small-sized forms of cultivation structures - irradiation chambers and cabinet units, grow boxes, phytotrons, etc. In this case, the main technological operation is the light regime necessary for plants: with the radiation spectrum necessary for their development and growth, with the required intensity and irradiation regime. The results of photobiological studies on the qualitative indicators of woody plants grown in phytotron conditions under irradiation by radiation with different proportions in the blue-red and blue-green-red ranges of the photosynthetically active radiation zones are presented. The photosynthetically active radiation spectral variants, providing the highest or extremely close to it productivity of the indicated crops, were established. The complex and ambiguous nature of the photosynthetically active radiation main spectral ranges influence on the photoenergy and photoregulatory processes in plants, which ensure their productivity, is indicated, which makes it impossible to determine the general unified requirements for the artificial irradiation optimal parameters for growing plants.