Effects of a weak supply of light at night on the growth and quality components of tea plants

IF 2.2 4区 农林科学 Q2 HORTICULTURE Folia Horticulturae Pub Date : 2022-12-01 DOI:10.2478/fhort-2022-0020
Qinlin Liu, S. Dong, Xiao-li Hu, Yang Yang, Qian Tang, Lina Tan
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引用次数: 1

Abstract

Abstract Supplying artificial light is widely used in crop cultivation to improve yield and quality. In this study, we investigated the effects of a weak supply of light (WSL) on the growth and quality components of tea plants. Starting from mid-winter (20 January 2021), the purple tea (Camellia sinensis) cultivar ‘Ziyan’ was exposed to four different spectra at an intensity of 2 μmol · m−2 · s−1 or 5 μmol · m−2 · s−1 for 3 h or 5 h after sunset. The field observations showed that the sprouting index, which represents the time and speed of bud flush, was significantly higher in most of the WSL treatments than in the control (CK, p < 0.01). The total content of catechin in the harvested leaves of 3 WSL treatments was 11.51%–18.94% higher than that of the CK, but the content of anthocyanin of 4 WSL treatments unexpectedly decreased by 6.77%–11.69% (p < 0.05). The differences in yield, free amino acids and caffeine contents between the WSL treatments and CK were not significant. We concluded that the WSL treatments during the early spring night had positive impacts on the growth and some quality components of tea plants.
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夜间弱光对茶树生长和品质成分的影响
摘要为提高作物产量和品质,在作物栽培中广泛应用人工光源。在本研究中,我们研究了弱光照对茶树生长和品质成分的影响。从冬至(2021年1月20日)开始,将紫茶品种紫燕暴露在2 μmol·m−2·s−1或5 μmol·m−2·s−1的4种不同光谱下,在日落后分别照射3 h或5 h。田间观察结果表明,大部分WSL处理的发芽指数(即出芽时间和出芽速度)显著高于对照(CK, p < 0.01)。3个WSL处理收获叶片中儿茶素总含量比对照高11.51% ~ 18.94%,花青素含量意外下降6.77% ~ 11.69% (p < 0.05)。在产量、游离氨基酸和咖啡因含量方面,WSL处理与对照差异不显著。结果表明,早春夜的WSL处理对茶树的生长和部分品质成分有积极的影响。
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来源期刊
Folia Horticulturae
Folia Horticulturae Agricultural and Biological Sciences-Horticulture
CiteScore
3.40
自引率
0.00%
发文量
13
审稿时长
16 weeks
期刊介绍: Folia Horticulturae is an international, scientific journal published in English. It covers a broad research spectrum of aspects related to horticultural science that are of interest to a wide scientific community and have an impact on progress in both basic and applied research carried out with the use of horticultural crops and their products. The journal’s aim is to disseminate recent findings and serve as a forum for presenting views as well as for discussing important problems and prospects of modern horticulture, particularly in relation to sustainable production of high yield and quality of horticultural products, including their impact on human health.
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