机构地区:[1]北京市农林科学院智能装备技术研究中心,北京100097 [2]宁夏大学葡萄酒与园艺学院,银川750021 [3]农业农村部都市农业(北方)重点实验室,北京100097
出 处:《中国农业气象》2024年第5期506-516,共11页Chinese Journal of Agrometeorology
基 金:北京市智能温室蔬菜创新团队项目(BAIC12-2024);北京市农林科学院青年科研基金项目(QNJJ202119;QNJJ202307);宁夏重点研发计划项目(2022BBF02023)。
摘 要:在全人工光型植物工厂中以番茄品种′MicroTom′为试材,采用供光模式可调的LED灯为光源,以LED纯白光为对照,分别采取纯红光、纯蓝光、红蓝混合光、红蓝交替光的不同供光模式的红、蓝光作为补充光,探究不同补光模式对设施番茄生长发育及荧光特性的影响。结果表明:(1)所有处理下番茄植株生长指标和果实重量均有一定程度提高,补光对叶绿素荧光的动态变化影响显著,纯红光补光对番茄植株的株高、茎粗、叶面积和产量的增加影响最大,红蓝光1h或6h间隔交替补光显著促进了叶绿素含量的增加和PSII光合性能的提高。(2)在番茄营养生长期,纯红光补光处理下番茄株高的相对生长率和绝对生长率分别较对照增加106.8%和60%,茎粗相对生长率和绝对生长率分别较对照增加50%和80%。播种后44d,纯红光补光处理下番茄植株叶面积较对照增加92.1%。(3)在番茄生殖生长期,与对照相比,播种后83d纯红光补光处理下番茄植株坐果数增加73.6%,番茄果实的横、纵径和体积分别增加34.4%、35.3%和129.6%。(4)与对照相比,播种后44d红蓝光以1h或6h间隔交替补光处理下番茄叶片叶绿素含量分别增加30.3%和31.8%。播种后83d红蓝光以1h或6h间隔交替补光处理后番茄植株的性能指数(PIABS)分别较对照提高100%和30%,红蓝光以1h或6h间隔交替补光处理后PSII的电子传递效率(ETo/CS)分别较对照增加16%、23%。综上,纯红光补光可有效促进设施番茄的生长发育,以1h或6h间隔交替红蓝补光显著影响番茄荧光特性。未来可根据不同生产目标,选择最适合的补光模式。The tomato variety'Micro Tom'is used as an experimental material in a fully artificial light-type plant factory.An LED light with adjustable illumination modes was used as the light source and a pure white LED light was used as the control.Different illumination mode,such as pure red light,pure blue light,mixed red and blue light,and alternating red and blue light were used as supplementary light.The influence of different red and blue supplemental lighting modes on the growth,development,and fluorescence characteristics of greenhouse tomatoes was explored.The results showed that:(1)in all treatments,the growth indicators and fruit weight of the tomato plants increased to a certain extent.The dynamic change of chlorophyll fluorescence was significantly affected by supplementary light.Pure red light supplementation had the greatest effect on the increase in plant height,stem thickness,leaf area,and yield of the tomato plants.Alternating red and blue light supplementation at intervals of 1h or 6h significantly promoted the increase in chlorophyll content and the improvement of PSII photosynthetic performance.(2)During the vegetative growth stage of tomatoes,under pure red light supplementation,the relative growth rate and absolute growth rate of plant height increased by 106.8%and 60%respectively compared to the control.The relative growth rate and absolute growth rate of stem thickness increased by 50%and 80%respectively.44 days after sowing,the leaf area of the tomato plants under pure red light supplementation increased by 92.1%compared to the control.(3)During the reproductive growth period of tomatoes,compared with the control,83 days after sowing,the number of fruits set under pure red light supplementation increased by 73.6%.The horizontal and vertical diameters and volume of tomato fruit increased by 34.4%,35.3%,and 129.6%respectively.(4)Compared with the control,44 days after sowing,the chlorophyll content in tomato leaves under alternating red and blue light supplementation at intervals of 1h or 6h increa
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