[1]李涵,朱为民,吴珏,等.不同光质处理对芹菜幼苗生长及叶片荧光诱导动力学的影响[J].北方园艺,2023,(07):18-24.[doi:10.11937/bfyy.20223078]
　LI Han,ZHU Weimin,WU Yu,et al.Effects of Different Light Quality Treatments on Growth and Fluorescence Induction Kinetics of Celery Seedlings[J].Northern Horticulture,2023,(07):18-24.[doi:10.11937/bfyy.20223078]

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不同光质处理对芹菜幼苗生长及叶片荧光诱导动力学的影响

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 期数: 2023年07 页码: 18-24 栏目: 出版日期: 2023-04-15

Title:: Effects of Different Light Quality Treatments on Growth and Fluorescence Induction Kinetics of Celery Seedlings

作者:: 李涵1; 2; 朱为民1; 吴珏3; 王虹1; 何莉芳4; 阎君1; （1.上海市农业科学院设施园艺研究所，上海市设施园艺技术重点实验室，上海 201403；2.南京农业大学农学院，江苏南京 210095；3.奉贤区农业技术推广中心，上海 201400；4.上海市松江区泖港镇农业服务中心，上海 201607）

Author(s):: LI Han1; 2; ZHU Weimin1; WU Yu3; WANG Hong1; HE Lifang4; YAN Jun1; (1.Horticultural Research Institute,Shanghai Academy of Agricultural Sciences/Shanghai Key Laboratory of Protected Horticultural Technology,Shanghai 201403;2.College of Agriculture,Nanjing Agricultural University,Nanjing,Jiangsu 210095；3.Agro-Technology Extension Center of Fengxian District,Shanghai 201400;4.Maogang Agricultural Service Center,Songjiang District,Shanghai 201607)

关键词:: 芹菜幼苗; 红蓝光; 幼苗生长; OJIP曲线; 光合电子传递

Keywords:: celery seedlings; red and blue light; gowth and development; OJIP curve; photosynthetic electron transport

DOI:: 10.11937/bfyy.20223078

文献标志码:: A

摘要:: 以黄心芹为试材，采用人工补光的方法，设置光质分别为纯红光（R）、红光∶蓝光=3∶1(3R1B)、红光∶蓝光=1∶3(1R3B)、纯蓝光（B）以及对照组白光（W），探究了不同的红蓝光比例对芹菜幼苗的生长和光合系统电子传递的影响，以期筛选出适宜的壮苗处理并了解红蓝光对芹菜幼苗光系统的调控机制。结果表明：与对照相比，R处理显著促进芹菜幼苗株高、叶面积的增加但显著减小了茎粗和根长，B处理则相反，幼苗株高和叶面积最小，但根长和茎粗最大；B的壮苗指数最高，〖JP+1〗并且总鲜质量和总干质量的积累仅次于R处理；1R3B和3R1B的表型差异和生物量的差异并不明显。相比于R和3R1B，W、B、1R3B更有利于光合色素的积累。通过OJIP曲线及JIP-test分析发现，R处理的J点相对荧光强度显著大于其它处理并且I点同样为最大，这说明红光抑制了PSⅡ受体侧QA、QB和PQ库的还原，抑制了电子传递及PSⅡ活性。该研究中，单色蓝光处理的壮苗指数最高，并且拥有较高的生物量和光合色素积累，PSⅡ的电子传递系统未发现被抑制，是比较理想的育苗光质。

Abstract:: Taking yellow heart celery as the test materials,and artificial lighting as the research method，the light quality was set as red light (R),red light∶blue light=3∶1(3R1B),red light∶blue light=1∶3(1R3B),blue light (B),and white light of control group (W),the effects of different ratios of red and blue light on the growth of celery seedlings and the electron transfer of photosynthetic system were investigated,in order to screen out suitable treatment of strong seedlings and understand the regulation mechanism of red and blue light on the light system of celery seedlings.The results showed that,compared with the control,treatment R significantly promoted the increase of plant height and leaf area but significantly reduced the stem diameter and root length of celery seedlings,while treatment B,on the contrary,had the smallest plant height and leaf area but the largest root length and stem diameter of celery seedlings.The seedling index of B was the significantly higher than that of other combinations,and the accumulation of total fresh weight and total dry weight of B was the second only to that of R.Phenotypic and biomass differences between 1R3B and 3R1B were not significant.Compared with R and 3R1B,W,B,1R3B were more conducive to the accumulation of photosynthetic pigments.OJIP curve and JIP-test analysis showed that the relative fluorescence intensity of point J treated by R was significantly higher than that of other treatments,and point I was also the largest,indicated that red light inhibited the reduction of QA,QB and PQ libraries on the PSⅡ receptor side,and inhibited electron transport and PSⅡ activity.Monochromatic blue light treatment was the best treatment of strong seedlings,and had higher biomass,light and pigment accumulation PSⅡ electron transport system was not found to be inhibited.

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备注/Memo

第一作者简介：李涵（1997-），男，硕士，研究方向为设施光环境调控。E-mail:18264870726@163.com.责任作者：阎君（1983-），女，博士，副研究员，现主要从事芹菜栽培与遗传育种等研究工作。E-mail：ylgw_07@163.com.基金项目：上海市科委农业领域资助项目(19391900800,23N71900200)；上海市农业科学院卓越团队资助项目（农科卓2023（005））。收稿日期：2022-07-26

更新日期/Last Update: 2023-04-28