Improving strawberry plant resilience to salinity and alkalinity through the use of diverse spectra of supplemental lighting.
BMC Plant Biol
; 24(1): 252, 2024 Apr 08.
Article
in En
| MEDLINE
| ID: mdl-38589797
ABSTRACT
BACKGROUND:
This study explores the impact of various light spectra on the photosynthetic performance of strawberry plants subjected to salinity, alkalinity, and combined salinity/alkalinity stress. We employed supplemental lighting through Light-emitting Diodes (LEDs) with specific wavelengths monochromatic blue (460 nm), monochromatic red (660 nm), dichromatic blue/red (13 ratio), and white/yellow (400-700 nm), all at an intensity of 200 µmol m-2 S-1. Additionally, a control group (ambient light) without LED treatment was included in the study. The tested experimental variants were optimal growth conditions (control), alkalinity (40 mM NaHCO3), salinity (80 mM NaCl), and a combination of salinity/alkalinity.RESULTS:
The results revealed a notable decrease in photosynthetic efficiency under both salinity and alkalinity stresses, especially when these stresses were combined, in comparison to the no-stress condition. However, the application of supplemental lighting, particularly with the red and blue/red spectra, mitigated the adverse effects of stress. The imposed stress conditions had a detrimental impact on both gas exchange parameters and photosynthetic efficiency of the plants. In contrast, treatments involving blue, red, and blue/red light exhibited a beneficial effect on photosynthetic efficiency compared to other lighting conditions. Further analysis of JIP-test parameters confirmed that these specific light treatments significantly ameliorated the stress impacts.CONCLUSIONS:
In summary, the utilization of blue, red, and blue/red light spectra has the potential to enhance plant resilience in the face of salinity and alkalinity stresses. This discovery presents a promising strategy for cultivating plants in anticipation of future challenging environmental conditions.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Fragaria
/
Resilience, Psychological
Language:
En
Journal:
BMC Plant Biol
Journal subject:
BOTANICA
Year:
2024
Document type:
Article
Affiliation country:
Iran