Growth Responses of Red-Leaf Lettuce to Temporal Spectral Changes

Frontiers in Plant Science
Qingwu Meng, Erik S Runkle

Abstract

Lighting is typically static for indoor production of leafy greens. However, temporal spectrum differentiation for distinct growth phases can potentially control age-specific desirable traits. Spectral effects can be persistent yet dynamic as plants mature, necessitating characterization of time-dependent responses. We grew red-leaf lettuce (Lactuca sativa L.) "Rouxai" in a growth room at 23°C and under a 20-h photoperiod created by warm-white (WW), blue (B; peak = 449 nm), green (G; peak = 526 nm), red (R; peak = 664 nm), and/or far-red (FR; peak = 733 nm) light-emitting diodes. From day 0 to 11, plants received six static lighting treatments with the same total photon flux density (400-800 nm): WW180, R180, B20R160, B20G60R100, B20R100FR60, or B180 (subscripts denote photon flux densities in μmol⋅m-2⋅s-1). On day 11, plants grown under each of the six treatments were transferred to all treatments, which created 36 temporal spectrum alternations. Plant growth, morphology, and coloration were measured on days 11 and 25. Increasing B radiation from 0 to 100% in static treatments decreased shoot fresh and dry weights and increased foliage redness of seedlings and mature plants. Compared to B20R160, B20R100FR60 increased shoot fre...Continue Reading

References

Jun 20, 2003·Nature·Pablo D Cerdán, Joanne Chory
May 1, 1993·Current Biology : CB·A P Bird
Jan 24, 2007·The Journal of Biological Chemistry·Jean-Pierre BoulyMargaret Ahmad
Jul 17, 2007·Journal of Experimental Botany·Kevin M Folta, Stefanie A Maruhnich
Aug 20, 2011·Plant Physiology·Tingting ZhangKevin M Folta
Feb 4, 2012·Plant Signaling & Behavior·Tingting Zhang, Kevin M Folta
Jul 14, 2012·Photosynthesis Research·Barbara Demmig-AdamsWilliam W Adams
Jan 3, 2013·American Journal of Botany·Yihai Wang, Kevin M Folta
Dec 3, 2014·Nature Communications·Ute ArmbrusterMartin C Jonikas
Aug 11, 2015·Plant Science : an International Journal of Experimental Plant Biology·Zhongjuan LiuYurong Bi
Dec 21, 2016·Current Biology : CB·Keara A Franklin

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