Effects of light quality on growth, nutritional characteristics, and antioxidant properties of winter wheat seedlings (Triticum aestivum L.)

Abstract

Wheat seedlings are becoming popular for its high nutritional value. Effects of White (W), White + Red (WR), and White + Blue (WB) light-emitting diodes (LEDs) treatments on growth, nutritional characteristics and antioxidant properties of wheat seedlings were studied in a plant factory. The results showed that height, leaf area, shoot fresh, and shoot dry weight per wheat seedling were the highest under WR at 13 and 22 days after planting. Soluble sugar content in leaves and stems were 22.3 and 65% respectively higher under WB than those under W. Soluble protein content in leaves and stems were 36.8 and 15.2% respectively lower under WR than those under W. Contents of total flavonoids, glutathione (GSH) and ascorbic acid (ASA) in leaves were the highest under WB, whereas malondialdehyde (MDA) content in leaves was the lowest under WB. The activities of antioxidant enzymes [superoxide dismutase (SOD), peroxidase (POD), and ascorbate peroxidase (APX)] in leaves and 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging ability were also the highest under WB. In conclusion, WR promoted the growth of wheat seedlings, and WB promoted antioxidant level and nutritional accumulation. This study provides guidance for wheat seedlings to carry out preferential production (biomass or quality).

Qualidade de luz na germinação de sementes de trigo mourisco e milho

“…Em experimento com trigo, Li et al (2022) constataram que o crescimento das plântulas foi significativamente influenciado pelos feixes luminosos, onde a luz vermelha promoveu o crescimento das plântulas, manifestado principalmente como aumento da altura da planta, massa fresca e seca da parte aérea. Por outro lado, Gallardo-Yobal et al ( 2022) averiguaram que a qualidade da luz influenciou a germinação das sementes de Magnolia alejandrae García-Mor.…”

Integrated Analysis of Morphological, Physiological, Anatomical and Molecular Responses of Cassava Seedlings to Different Light Qualities

“…In the present study, we observed that the SOD and POD activities in cassava leaves were significantly elevated by RL treatment but inhibited by BL. In contrast, SOD activity was increased following BL treatment in Rubus hongnoensis [ 40 ], pea [ 41 ] and wheat [ 42 ].…”

Identification and Expression Profiling of the bZIP Gene Family Throughout the Genome in Phoebe bournei under Abiotic Stress

“…Phoebe bournei have encounter many challenges to the environment which imposed by human activities but also natural environment (Li et al 2017), although establishment of most advanced and good seedling with agronomic characteristics but the survival and resistivity of of phoebia bournei remain challenge, under environmental factors like high temperature,salinity and drought (Da 2001). Different studies have shown that the phioebia bournei are more sensitive to biotic stress (Li et al 2022;Wei et al 2023). To ensure the survival and development of the Phoebea bournei population, studying the biochemical and molecular response of Phoebea bournei bZIP under different abiotic stress is very important.…”