主要功能
實(shí)時(shí)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(tài)。
測量參數(shù)
Chl：葉綠素指數(shù)
Flav：類黃酮指數(shù)
NBI：氮平衡指數(shù) Chl/Flav 比值
Anth：花青素指數(shù)
應(yīng)用領(lǐng)域
植物生理生態(tài)
觀賞園藝
果樹學(xué)
食品科學(xué)
植物病理
逆境生理
藥用植物
植物營養(yǎng)
遙感
茶學(xué)
主要技術(shù)參數(shù)
測量光源：5 個(gè) LED : 1 個(gè)紫外光，1 個(gè)綠光，1 個(gè)紅光和 2 個(gè)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(jī)一整套，已包含 GPS。
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儀器組成部件 |
應(yīng)用案例
植物氮肥監(jiān)測 全新氮肥指標(biāo)-氮平衡指數(shù)NBI
氮平衡指數(shù)（NBI: Nitrogen Balance Index）是葉綠素（SFR）和類黃酮（FLAV）的比值：當(dāng)未發(fā)生氮肥脅迫時(shí)，植物生長健康，合成葉綠素較多，產(chǎn)生的多酚（類黃酮）較少；當(dāng)發(fā)生氮肥脅迫時(shí)，植物營養(yǎng)不平衡，產(chǎn)生的多酚（類黃酮）較多，生成葉綠素較少。傳統(tǒng)方法通過葉綠素判斷氮肥狀況，當(dāng)葉片葉綠素含量下降時(shí)（葉片變黃），說明植物缺失氮肥，在實(shí)際應(yīng)用中，該方法有一定的延遲效應(yīng)，葉綠素下降時(shí)幾天甚至十幾天前氮肥缺失的表現(xiàn)，即使此刻施肥，也會影響作物的最終產(chǎn)量。而通過測量NBI值來評估氮肥狀況時(shí)，避免傳統(tǒng)方法中的延遲效應(yīng)，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(shí)快速進(jìn)行氮肥管理。
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產(chǎn)地：法國 Force-A
參考文獻(xiàn)
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