浙江农业学报 ›› 2026, Vol. 38 ›› Issue (4): 655-668.DOI: 10.3969/j.issn.1004-1524.20250320

• 园艺科学 • 上一篇    下一篇

植物工厂光周期对青菜生长、品质与光合参数的影响

张东鹤1,2(), 崔佳维1, 苗辰1, 李晓锋1, 占绣萍2, 王齐旭2, 李建勇2,*(), 丁小涛1,*()   

  1. 1 上海市农业科学院 上海市设施园艺技术重点实验室, 上海 201403
    2 上海市农业技术推广服务中心, 上海 201103
  • 收稿日期:2025-04-22 出版日期:2026-04-25 发布日期:2026-05-08
  • 作者简介:李建勇,E-mail:48685988@qq.com;丁小涛,E-mail:dingxiaotao@saas.sh.cn
    张东鹤,主要从事蔬菜“四新”技术等研究。E-mail:18801283880@163.com
  • 通讯作者: 李建勇,丁小涛
  • 基金资助:
    上海市设施园艺技术重点实验室(KF202404)

Effects of different photoperiods on growth, quality, and photosynthetic parameters of pakchoi in plant factory

ZHANG Donghe1,2(), CUI Jiawei1, MIAO Chen1, LI Xiaofeng1, ZHAN Xiuping2, WANG Qixu2, LI Jianyong2,*(), DING Xiaotao1,*()   

  1. 1 Shanghai Key Laboratory of Protected Horticultural Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201605, China
    2 Shanghai Agricultural Technology Extension Service Center, Shanghai 201103, China
  • Received:2025-04-22 Published:2026-04-25 Online:2026-05-08
  • Contact: LI Jianyong,DING Xiaotao

摘要:

为探究人工光植物工厂光周期对青菜生长与品质的影响,本研究选取4个青菜品种为材料,设置4个光周期处理:T1,10 h光照/14 h黑暗(10 L∶14 D);T2,13 h光照/11 h黑暗(13 L∶11 D);T3,16 h光照/8 h黑暗(16 L∶8 D);T4,19 h光照/5 h黑暗(19 L∶5 D)。测定各处理条件下青菜的生物量、生长指标、品质指标与光合参数。结果表明:适度延长光照时间(16 L∶8 D)可提高青菜的光合效率并增加植株生物量。品种紫衣在19 L∶5 D处理下地上部鲜重最大,较13 L∶11 D处理提高15.48%;品种SH-2、新夏青9号和艳青在16 L∶8 D处理下地上部鲜重最大,较13 L∶11 D处理分别提高16.00%、16.96%和23.68%。适度延长光照时间同时提高了青菜的可溶性糖、可溶性蛋白和花青素含量,并降低了硝酸盐含量。然而,持续超长光周期(光照时间19 h·d-1)会导致生长后期产量下降和外观品质降低,从而丧失商品性,这可能与超长光照时间引起部分青菜品种PSⅡ整体活性下降,进而发生光抑制有关。建议在人工光植物工厂的青菜生产中适当延长光照时间,苗期光照时间以16~19 h·d-1为宜,生长后期应适当缩短至16 h·d-1左右,以保证青菜产量和品质。

关键词: 青菜, 人工光植物工厂, 无土栽培, 光周期, 生物量, 鲜重

Abstract:

To investigate the effects of photoperiod on the growth and quality of pakchoi (Brassica campestris ssp.chinensis Makino) in plant factories with artificial lighting, four varieties of pakchoi were selected as experimental materials. Four photoperiod treatments were applied: T1, 10 h light/14 h dark (10 L∶14 D); T2, 13 h light/11 h dark (13 L∶11 D); T3, 16 h light/8 h dark (16 L∶8 D); T4, 19 h light/5 h dark (19 L∶5 D). Biomass, growth indices, quality indices, and photosynthetic parameters were measured. The results showed that moderately extending the photoperiod (16 L∶8 D) could improve photosynthetic efficiency and increase plant biomass. The variety Ziyi exhibited the highest shoot fresh weight under the 19 L∶5 D treatment, which was 15.48% higher than that under 13 L∶11 D treatment. The varieties SH-2, Xinxiaqing No. 9, and Yanqing achieved the highest shoot fresh weight under the 16 L∶8 D treatment, with increases of 16.00%, 16.96%, and 23.68%, respectively, compared with 13 L∶11 D treatment. Moderately extended photoperiods also increased the contents of soluble sugars, soluble proteins, and anthocyanins while reducing nitrate content. However, excessively prolonged photoperiods (light duration 19 h·d-1) led to yield decline and reduced appearance quality during later growth stages, thereby diminishing marketability. This might be attributed to reduced overall PSII activity in some pakchoi varieties under such conditions, consequently inducing photoinhibition. It is recommended to appropriately increase the light duration (16-19 h·d-1) during the seedling stage and reduce it to approximately 16 h·d-1 in later growth stages to ensure both yield and quality in pakchoi production within artificial light plant factory.

Key words: pakchoi, artificial light plant factory, soilless cultivation, photoperiod, biomass, fresh weight

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