植物多酚-叶绿素测量计——Dualex Scientific+
日期:2017-04-20 13:09:35

主要功能

实时非破坏测量植物叶片多酚和叶绿素含量、叶片表层类黄酮和花青素含量;

可通过多酚的测定评估植物氮的状态。


测量参数

Chl:叶绿素指数

Flav:类黄酮指数

NBI:氮平衡指数 Chl/Flav 比值

Anth:花青素指数


应用领域

植物生理生态

观赏园艺

果树学

食品科学

植物病理

逆境生理

药用植物

植物营养

遥感

茶学


主要技术参数

测量光源:5 个 LED : 1 个紫外光,1 个绿光,1 个红光和 2 个近红外光(NIR)

检测器:硅光二极管

用户界面:LCD 液晶屏,蜂鸣器

位置精度:<2.5 m


选购指南

仪器配置:

主机一整套,已包含 GPS。


主机.jpg


仪器组成部件



应用案例

植物氮肥监测 全新氮肥指标-氮平衡指数NBI

氮平衡指数(NBI: Nitrogen Balance Index)是叶绿素(SFR)和类黄酮(FLAV)的比值:当未发生氮肥胁迫时,植物生长健康,合成叶绿素较多,产生的多酚(类黄酮)较少;当发生氮肥胁迫时,植物营养不平衡,产生的多酚(类黄酮)较多,生成叶绿素较少。传统方法通过叶绿素判断氮肥状况,当叶片叶绿素含量下降时(叶片变黄),说明植物缺失氮肥,在实际应用中,该方法有一定的延迟效应,叶绿素下降时几天甚至十几天前氮肥缺失的表现,即使此刻施肥,也会影响作物的最终产量。而通过测量NBI值来评估氮肥状况时,避免传统方法中的延迟效应,叶绿素和多酚(类黄酮)稍有变化,即可检测出植物的氮肥状况,及时快速进行氮肥管理。


应用案例1.jpg应用案例2.jpg




产地:法国 Force-A



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