WANG Wei,LIU Danxia,HE Xinyang,et al.Effects of Supplemental Blue Light at Different Stages on Tomato Plant Growth,Fruit Quality and Nutrient Uptake[J].Northern Horticulture,2021,(11):1-9.[doi:10.11937/bfyy.20204042]
不同时期增补LED蓝光对番茄植株生长、果实品质和养分吸收的影响
- Title:
- Effects of Supplemental Blue Light at Different Stages on Tomato Plant Growth,Fruit Quality and Nutrient Uptake
- Keywords:
- supplemental blue light; tomato growth; fruit quality; nutrient uptake
- 文献标志码:
- A
- 摘要:
- 以Micro-Tom番茄为试材，在营养液水培条件下，对果实发育成熟期补光（B）、果实发育期补光（B1）、果实成熟期补光（B2）下番茄植株生长、叶片光合参数、果实质量、果实品质、根系形态、矿物质离子平均吸收速率及其相互关系进行了研究，以期明确增补蓝光对番茄生长、果实品质、养分吸收的调控效果。结果表明：B1处理能显著促进番茄的生长与果实膨大，增加果数、提高果实质量，与B处理的效果一致；B处理显著提高了番茄根系生长各项指标，B1处理显著促进主根的伸长，而B2处理对番茄根系生长无显著影响；B1处理或者B2处理显著提高了番茄果实中的有机酸含量，可溶性糖、维生素C含量、糖酸比与不补光处理差异不显著；B1与B补光处理显著提高了NO3-N、PO4-P、K+、Ca2+、Mg2+平均吸收速率；B1与B补光处理通过促进PO4-P与K+吸收，间接促进坐果，加快番茄果实发育，促进成熟与果实着色。因此，B1补光处理能达到与B补光处理相同的效果，优于B2处理。在低耗能补光策略上可以考虑采用果实发育期补光。
- Abstract:
- Taking Micro-Tom tomato as experimental material,the parameters of plant growth,photosynthetic parameters,fruit weight and quality,root morphology,average uptake rate of nutrient elements as well as correlation among them of tomato grown under different supplemental blue light treatments (B:anthesis-fruit mature,B1:anthesis-fruit green mature,B2:fruit green mature-mature) were investigated,in order to clarify the effects of supplemental blue light on tomato growth,fruit quality and uptake characteristics of nutrient elements.The results showed that,B1 treatment effectively promoted growth,fruit expansion,fruit number and fruit weight of tomato,which was consistent with B treatment.B treatment significantly enhanced tomato root growth,but B1 treatment significantly promoted the elongation of taproot,B2 treatment had no effect on tomato root growth.The contents of organic acids in tomato fruits were significantly increased under B1 or B2 treatment,but the content of soluble sugar and vitamin C,and sugar-acid ratio were not affected by supplemental light.The average uptake rate of NO3-N,PO4-P,K+,Ca2+ and Mg2+ were significantly increased under B1 and B treatment.B1 and B supplemental indirectly promoted fruit setting,accelerated fruit development and promoted the ripening as well as fruit coloring through promoting the uptake of PO4-P and K+.Therefore,B1 supplemental light treatment could achieve the same effect as B supplementary light treatment,which was better than B2 treatment.Therefore,the light supplementation strategy at can be considered in fruit development stage.Supplemental light at fruit development stage can be considered as a low energy consumption supplemental strategy.
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备注/Memo
第一作者简介：王维（1996-），男，硕士研究生，研究方向为设施蔬菜品质调控技术。E-mail：weiwang@stu.scau.edu.cn.责任作者：张轶婷（1985-），女，博士，讲师，现主要从事设施蔬菜品质调控技术等研究工作。E-mail：yitingzhang@scau.edu.cn.基金项目：国家重点研发计划资助项目（2017YFE0131000）；广东省自然科学基金资助项目（2018A030313623）。收稿日期：2020-09-18