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植物多酚-葉綠素測量計——Dualex Scientific+

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主要功能

實時非破壞測量植物葉片多酚和葉綠素含量、葉片表層類黃酮和花青素含量;

可通過多酚的測定評估植物氮的狀態。


測量參數

Chl:葉綠素指數

Flav:類黃酮指數

NBI:氮平衡指數 Chl/Flav 比值

Anth:花青素指數


應用領域

植物生理生態

觀賞園藝

果樹學

食品科學

植物病理

逆境生理

藥用植物

植物營養

遙感

茶學


主要技術參數

測量光源:5 個 LED : 1 個紫外光,1 個綠光,1 個紅光和 2 個近紅外光(NIR)

檢測器:硅光二極管

用戶界面:LCD 液晶屏,蜂鳴器

位置精度:<2.5 m


選購指南

儀器配置:

主機一整套,已包含 GPS。


主機.jpg


儀器組成部件



應用案例

植物氮肥監測 全新氮肥指標-氮平衡指數NBI

氮平衡指數(NBI: Nitrogen Balance Index)是葉綠素(SFR)和類黃酮(FLAV)的比值:當未發生氮肥脅迫時,植物生長健康,合成葉綠素較多,產生的多酚(類黃酮)較少;當發生氮肥脅迫時,植物營養不平衡,產生的多酚(類黃酮)較多,生成葉綠素較少。傳統方法通過葉綠素判斷氮肥狀況,當葉片葉綠素含量下降時(葉片變黃),說明植物缺失氮肥,在實際應用中,該方法有一定的延遲效應,葉綠素下降時幾天甚至十幾天前氮肥缺失的表現,即使此刻施肥,也會影響作物的終產量。而通過測量NBI值來評估氮肥狀況時,避免傳統方法中的延遲效應,葉綠素和多酚(類黃酮)稍有變化,即可檢測出植物的氮肥狀況,及時快速進行氮肥管理。


應用案例1.jpg應用案例2.jpg




產地:法國 Force-A



參考文獻

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