Physiological and nutritional responses of two pakchoi (Brassica chinensis) cultivars to different red-blue light ratios in controlled environment

Frontiers in Sustainable Food Systems, Journal Year: 2025, Volume and Issue: 9

Published: April 16, 2025

There is a growing interest in cultivating pakchoi under controlled environment agriculture. However, research on establishing the ideal environmental conditions for plant factories remains insufficient. Therefore, this study, we investigated optimal red-to-blue light ratio enhancing plants’ nutritional quality and growth. Five treatments (B, R 2 B 1 , 4 8 R) were employed our while white (W) provided by fluorescent lamps was served as control. The cultivars used ‘Jingguan No. 1′, green pakchoi, ‘Ziguan red pakchoi. After 20 days of treatment application, observed significant improvements dry weight leaf area plants R. Specifically, increased 14.8% 26.7% 41.8% 81.1% compared to control treatment. Additionally, promoted net photosynthetic rate (P n ) enhanced stomatal conductance (G s ), intercellular CO concentration (C i transpiration (T r both varieties. Treatment facilitated accumulation pigments cultivars. On other hand, found be more conducive glucosinolate (GSc) Notably, concentrations vitamin C (V c soluble sugar 78.5 31.4%, respectively, with those Similarly, Vc, sugar, anthocyanin 31.6, 177.8, 114.4%, These findings indicate that different varieties exhibit distinct responses light-quality combinations.

Language: Английский

Shaping Kale Morphology and Physiology Using Different LED Light Recipes

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 14, 2024

Abstract Light emitting diodes (LEDs) present an innovative opportunity for manipulating plant growth and development. serves as a fundamental energy source environmental cue, providing ability to control traits through the precise manipulation of light intensity quality. Here, we assess effects spectral composition on physiology important model plant: Kale ( Brassica oleracea ), known its phenotypic plasticity nutritional composition, kale is crop well-suited indoor cultivation. employ combination advanced phenotyping, computer vision, gas chromatography-mass spectrometry (GC-MS) metabolomics, liquid (LC-MS)-based quantitative proteomics characterize molecular changes that underpin light-dictated differences in metabolism two different cultivars under scenarios. We identify time-of-day cultivar-specific composition-induced related growth, shade avoidance, photosynthesis several components including amino acids, glucosinolates carotenoids. Our results offer key resource community demonstrate translational potential tailoring content enhanced productivity and/or health benefits, while simultaneously offering more cost-effective solution contemporary agricultural challenges.

Language: Английский