时间:2018-11-14
作者:球速体育
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简介:
前言
LCi-T 便携式光合仪是最小巧、轻便的便携式光相助用测定仪,用以丈量植物叶片的光合速率、蒸腾速率、气孔导度等与植物光相助用相关的参数。仪器应用IRGA(红外气体剖析)原理,精密丈量叶片外貌CO2浓度及水分的变革情况来考察叶片与植物光相助用相关的参数。特殊的设计可在高湿度、高尘�G榭鍪褂�。既可在研究中使用,又是很好的教学仪器。
上图左为全套光合仪主机配件及便携箱等,上图中为光合仪主机和手柄,上图右为操作人员进行野外实验
应用领域
l 植物光合生理研究
l 植物抗胁迫研究
l 碳源碳汇研究
l 植物对全球气候变革的相应及其机理
l 作物新品种筛选
l 配备手持式叶绿素荧光仪,内置了所有通用叶绿素荧光剖析实验程序,包括两套荧光淬灭剖析程序、3套光响应曲线程序、OJIP-test等
l 彩色触摸屏,凭据情况光线自动调解亮度,既便当野外检察数据,又延长续航时间
l 任选RGB(Red Green Blue)或白色光源之一作为标配
l 便携式设计,体积轻巧,仅重2.4 Kg
l 微型IRGA置于丈量手柄中,大大缩短CO2丈量的反应时间
l 可在卑劣情况下使用
l 可便当交换差别种类的叶室
l 叶室质料经精心选择,以确保CO2及水分的丈量精度
l 数据存储量大,接纳即插即拔SD卡
l 操作简单,维护便当,叶室所有区域都很容易清洁
l 接纳低能耗技术,野外单电池连续事情时间可达10小时
l 内置GPS
上图为英国剑桥大学植物科学系M. Davey博士在南极洲对藻类光相助用研究时的事情图片,因LC系列光合仪轻便小巧,坚固耐用,续航长期等特点被列为首选。
l 丈量参数:光合速率、蒸腾速率、胞间CO2浓度、气孔导度、叶片温度、叶室温度、光合有效辐射、气压、光响应曲线等
l 手持叶绿素荧光仪(选配)
1. 丈量参数包括F0、Ft、Fm、Fm’、QY_Ln、QY_Dn、NPQ、Qp、Rfd、RAR、Area、M0、Sm、PI、ABS/RC等50多个叶绿素荧光参数,及3种给光程序的光响应曲线、2种荧光淬灭曲线、OJIP曲线等
2. 高时间区分率,可达10万次每秒,自动绘出OJIP曲线并给出26个OJIP-test丈量参数包括F0、Fj、Fi、Fm、Fv、Vj、Vi、Fm/F0、Fv/F0、Fv/Fm、M0、Area、Fix Area、Sm、Ss、N、Phi_P0、Psi_0、Phi_E0、Phi-D0、Phi_Pav、PI_Abs、ABS/RC、TR0/RC、ET0/RC、DI0/RC等
l CO2丈量规模:0-2000ppm
l CO2丈量区分率:1ppm
l CO2接纳红外剖析系统,差离开路丈量系统,自动置零,自动气压和温度赔偿
lH2O丈量规模:0-75 mbar
l H2O丈量区分率:0.1mbar
l H2O丈量接纳双激光调谐快速响应水蒸气传感器
l PAR丈量规模:0-3000 μmol m-2 s-1
l 叶室温度:-5 - 50℃ 精度:±0.2℃
l 叶片温度:-5 - 50℃
l 叶室中空气流量:68 – 340 ml / min
l 空气流量精度:全量程的±2%
l 预热时间:20℃时5分钟
l 数据存储:SD卡,最大支持32GB扩展,可存储16,000,000组典范数据
l 数据接口:mini-USB接口,RS232标准接口
l 图形显示:彩色WQVGA LCD触摸屏,480 x 272像素,尺寸95 x 53.9 mm,对角线长109mm,可实时图形显示各丈量参数
l 可选配便携式光源:具有PLU控制单位,控光规模0-2400 μmol m-2 s-1
l 可选配叶室
1. 宽叶叶室:长×宽为2.5×2.5cm,适用于阔叶及大大都叶片类型
2. 窄叶叶室:长×宽为5.8×1cm,适用宽度小于1cm的条形叶
3. 针叶叶室:长约69mm,直径47mm,适用于簇状针叶(白光光源)
4. 小型叶叶室:叶室直径为16.5mm,丈量面积2.16cm2
5. 土壤呼吸/小型植物室:丈量丈量土壤呼吸,或者高度低于55mm的整株草本植物光相助用,底面直径为11cm
6. 多功效丈量室:长×宽×高为15×15×7cm,分为上下两部分,上部丈量小型植物光相助用,下部分丈量土壤呼吸
7. 果实丈量室:上下两部分组成,上部透明,下部为金属,可丈量果实最大直径为11cm,最大高度为11.5cm
8. 冠层丈量室:底面直径12.7cm,高12.2cm,适用于地表冠层
9. 荧光仪联用适配器:适用于连接多种叶绿素荧光仪
上图从左到右依次为宽叶室、窄叶室、LED光源、荧光仪联用叶室、小型叶室
上图从左到右依次为针叶室、果实丈量室、土壤呼吸室、多功效丈量室、冠层室
l 供电系统:内置12V 2.8AH铅酸电池,可连续事情10小时左右
l 操作情况:5到45℃
l 主机尺寸:240×125×140mm,2.4Kg
l 主机显示参数:情况CO2和水蒸汽;CO2和水蒸汽变革;叶室和叶片的温度;气流速率;大气压;光合有效辐射;光合速率;胞间CO2浓度;蒸腾速率;气孔导度;电池状态等
Leaf life span optimizes annual biomass production rather than plant photosynthetic capacity in an evergreen shrub, Marty C. et al. 2010, New Phytologist, 187(2): 407-416
本文研究了Rhododendron ferrugineum(高山玫瑰杜鹃,杜鹃属模式种)净光合能力与叶片寿命的关系,发明有更多较老叶片的种群其光合能力更强(图中深色区域为一年叶片和二年叶片)。
英国
1) 与叶绿素荧光仪组成光相助用与叶绿素荧光丈量系统
2) 与FluorCam联用组成光相助用与叶绿素荧光成像丈量系统
3) 可选配高光谱成像实现从单叶片到复合冠层的光相助用时空变革研究
4) 可选配O2丈量单位
5) 可选配红外热成像单位以剖析气孔导度动态
6) 可选配PSI智能LED光源
7) 可选配FluorPen、SpectraPen、PlantPen等手持式植物(叶片)丈量仪器,全面剖析植物叶片生理生态
8) 可选配ECODRONE?无人机平台搭载高光谱和红外热成像传感器进行时空花样视察研究
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