Search Results

You are looking at 21 - 30 of 3,685 items for :

  • light quality x
Clear All

≈300 to 400 µmol·m −2 ·s −1 and a photoperiod of ≈16 h appears to be the optimal light environment for indoor production of microgreens based on crop yield and appearance quality ( Jones-Baumgardt et al., 2019 ; Ying et al., 2020 ). Also, plants grown

Open Access

challenge for growers due to the decreased yield and quality of horticultural crops, including microgreens. Supplemental lighting (SL) is a common practice for greenhouse production because it is a way to deal with low natural light issues. Hofstra et al

Open Access

). Therefore, the light conditions in a PFAL can be controlled precisely to meet the needs of plants. Compared with light quantity and light period, light quality has much more complex effects on plant morphology and physiology ( Folta and Carvalho, 2015 ; Xu

Open Access

lighting, such as adding small amount of FR or green light (G) to RB-LED lighting did not change plant elongation, and even had a negative effect on the appearance quality of four microgreen species ( Ying et al., 2020b ). Substituting G or FR for B in RB

Open Access

), there is a clear and present need for more efficient sources of supplemental lighting if high-quality produce is to be grown affordably in northern climates during the off-season. Light-emitting diodes are becoming a viable alternative to OH

Free access

wavelengths of diodes that may have impacts on strawberry growth, fruit quality, and yield. The objective of our study was to evaluate the efficacy of three commercially available LED SL top light bars with different blue, red, and far-red wavelengths at

Open Access

al., 2016 ). Light quality has more complex impacts on plant morphology and metabolism than light intensity or photoperiod ( Chen et al., 2017 ). In addition, light quality induces a series of physiological and biochemical reactions that are mainly

Open Access

across the three experimental replications. Fig. 1. Spectral quality delivered from sole-source light-emitting diode (LED) arrays with radiation qualities (%) of red:blue 87:13 (R 87 :B 13 ), red:far-red:blue 84:7:9 (R 84 :FR 7 :B 9 ), or red

Free access

). Tomato fruit yield and quality are affected by a large number of environment factors, including the levels of CO 2 and light ( Mamatha et al., 2014 ; Tewolde et al., 2016 ). How these two factors can be regulated to maximize fruit yield and quality has

Free access

objective was to determine the effect of covering the orchard floor with different types of reflective film on orchard temperature, skin-color development, fruit quality, light canopy distribution, and crop profitability. Materials and methods Plant material

Free access