LED 光改变三个大麻品种的植物结构、生理参数和大麻素含量

IF 2.7 3区 生物学 Q2 PLANT SCIENCES
Julián Eduardo Carranza-Ramírez , Ana María Borda , Liz Patricia Moreno-Fonseca
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引用次数: 0

摘要

光谱的变化会引起发育、次生代谢物生物合成和储存方面的反应。本研究旨在确定两种光源对温室条件下栽培的三个荠菜品种的生理和产量参数的影响。在无性繁殖阶段,用两种光源[LED1(100% 白光)和 LED2(90% 红光、8% 蓝光、1% 远红光)]处理非精神活性品种 Calotoweed、Higthcol 和 Souce Cauca。在 LED2 光源下,观察到植株高度(4%-26.7%)、叶面积(21%-55%)和嫩枝干重(1.9%-30.3%)均有所下降;但花序的生物量分布更高(40.1%-51.6%)。光照类型对叶绿素相对含量没有影响。与 LED1 下的植物相比,在 LED2 下生长的所有三个品种的气孔导度(4.7%-27.4%)、PSII 的量子效率(1%-11.7%)和电子传输速率(9.2%-15.8%)都有所降低。不同光照类型和品种的干花产量没有明显差异。与 LED2 相比,在 LED1 下观察到更高的 CBD 含量(11.9%-13.4%)和每克花序 CBD 含量(12.9 CBD 克/花序 - 13.8 CBD 克/花序)。与 LED1 下的植物相比,LED2 下的 Calotoweed(0.5%)和 Soucecauca(0.6%)品种显示出更高的四氢大麻酚浓度。这些结果表明,LED2 改变了冠层结构,使植株更紧凑,花序中的生物量积累更多;但是,这些植株的光合作用性能受到限制,从而降低了 CBD 产量,增加了 THC 产量。总之,光的类型不仅改变了植物的结构,还影响了光合作用的性能以及 CBD 和 THC 的产量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
LED light modifies plant architecture, physiological parameters and cannabinoid content in three varieties of Cannabis sativa L.
Changes in the light spectrum elicit responses in development and secondary metabolite biosynthesis and storage. The aim of this study was to determine the effect of two light sources on the physiological and yield parameters of three varieties of C. sativa cultivated under greenhouse conditions. The non-psychoactive varieties Calotoweed, Higthcol, and Souce Cauca were treated with two light sources [LED1(100% white) and LED2 (90% red, 8% blue, <1% far red)] during the vegetative phase. Under LED2, reductions in plant height (4%-26.7%), leaf area (21%-55%), and shoot dry mass (1.9%-30.3%) were observed; however, there was a higher distribution of biomass towards the inflorescences (40.1%-51.6%). No effect of the light type on the relative chlorophyll content was observed. In all three varieties grown under LED2, reductions in stomatal conductance (4.7%-27.4%), quantum efficiency of PSII (1%-11.7%), and electron transport rate (9.2%-15.8%) were observed compared to plants under LED1. There were no significant differences in dry flower yield between light types used or varieties. Under LED1, higher CBD contents (11.9%-13.4%) and CBD per gram of inflorescence (12.9 CBD g/inflorescence – 13.8 CBD g/inflorescence) were observed compared to LED2. Under LED2, the Calotoweed (0.5%) and Soucecauca (0.6%) varieties showed higher THC concentrations compared to plants under LED1. These results demonstrate that LED2 modified canopy architecture, resulting in more compact plants with greater biomass accumulation in the inflorescence; however, these plants exhibited limitations in photosynthetic performance, which decreased CBD production and increased THC production. In conclusion, the type of light not only modified plant architecture but also affected photosynthetic performance and the production of CBD and THC.
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来源期刊
South African Journal of Botany
South African Journal of Botany 生物-植物科学
CiteScore
5.20
自引率
9.70%
发文量
709
审稿时长
61 days
期刊介绍: The South African Journal of Botany publishes original papers that deal with the classification, biodiversity, morphology, physiology, molecular biology, ecology, biotechnology, ethnobotany and other botanically related aspects of species that are of importance to southern Africa. Manuscripts dealing with significant new findings on other species of the world and general botanical principles will also be considered and are encouraged.
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