太空温室“VITACYCLE-T”中植物最佳光照制度的论证

SUBSTANTIATION OF OPTIMAL LIGHTING REGIMES FOR PLANTS IN SPACE GREENHOUSE <<VITACYCLE-T>>.

作者信息

Konovalova I O, Berkovich Yu A, Erokhin A N, Smolyanina S O, Yakovleva O S, Znamensky A I, Tarakanov I G, Radchenko S G, Lapach S N

出版信息

Aviakosm Ekolog Med. 2016;50(4):35-41. doi: 10.21687/0233-528x-2016-50-4-35-41.

DOI:10.21687/0233-528x-2016-50-4-35-41

PMID:29873979

Abstract

A 3-factor experiment with 24-d vegetation of Brassica chinensis L. crops demonstrated the dependence of dry mass yield on lighting regimes provided by a lamp composed of white (color temperature 4000 K) and red (660 nm) LEDs (light-emitting diodes). Experimental data were used to build regressive dependences of plant dry mass and optimal light criterion (product of dry mass and photosynthesis efficiency) on 3 LEDs lamp parameters: photosynthetic photon flux density (PPFD), red and white PPFD ratio, and pulse period. The following LEDs light parameters were found to be optimal for the Chinese cabbage: time-averaged PFD - 500.μmol/(m².s), red and white PPFD ratio - 1.5 and pulse period - 501 ps. Considering the wattage rating for projectible vitamin greenhouse Vitacycle-To, continuous light should have PPFD = 430 pmol/(m²-s), rPPFD/wPPFD ratio - 1.5 and continuous light.

摘要

一项针对小白菜作物进行的为期24天的三因素实验表明，干物质产量取决于由白色（色温4000K）和红色（660nm）发光二极管（LED）组成的灯具所提供的光照条件。实验数据用于建立植物干物质和最佳光照标准（干物质与光合作用效率的乘积）对3个LED灯参数的回归依赖性：光合光子通量密度（PPFD）、红蓝光PPFD比值和脉冲周期。结果发现，以下LED光照参数对大白菜最为适宜：时间平均光通量密度（PFD）为500μmol/（m²·s），红蓝光PPFD比值为1.5，脉冲周期为501ps。考虑到可投射式维生素温室Vitacycle-To的瓦数额定值，连续光照时PPFD应为430pmol/（m²·s），红蓝光PPFD比值为1.5且为连续光照。