PolyPen RP-410手持式植物反射光谱测量仪通过内部光源(氙气白炽灯380-1050nm)测定植物叶片的反射光谱,也可以测定其他光源的透光度和吸光率。PolyPen在软件中内置了几乎所有常用的植物反射光谱指数公式,例如NDVI,PRI,NDGI等。测得的数据以图形或数据表的形式实时显示在仪器的显示屏上。这些数据都可以储存在仪器的内存里并传输到电脑里。
PolyPen RP 410由可充电锂电池供电,不需要使用电脑即可独立进行测量。仪器配备全彩色触屏显示器、内置光源、内置GPS和用于固定样品的无损叶夹。叶夹具备进行光源和检测器校准的标准参照物。
应用领域:
?植物反射光谱测量
?植物胁迫响应
?色素组成变化
?氮素含量变化
?产量估测
应用案例
德国波恩大学使用RP400光谱仪测量反射光谱植被指数PRI、NPCI、GI、NDVI等研究铁毒害对水稻的影响(Wu,2019)。
欧盟委员会联合研究中心通过无人机遥测技术研究叶缘焦枯病菌在橄榄树中的感染。同时通过FluorPen叶绿素荧光仪和RP400光谱仪直接检测叶片的叶绿素荧光和反射光谱植被指数,用于对照修正无人机遥测数据。研究结果发表在《Nature Plants》(Zarco-Tejada,2018)。
参考文献
1. Poblete, T., Camino, C., Beck, P. S. A.,A., Hornero, A., et al. 2020. Detection of Xylella fastidiosa in fastidiosa infection symptoms with airborne multispectr tral and thermal imagery: Assessing bandset redu eduction performance from hyperspectral analysis. ISPRS Journal of Photogrammetry and Remote Sensing, 162, 27–40.
2. Junker L. V., Rascher U., Jaenicke H., et al. 2019. Detection of plant stress responses in aphid-infested lettuce using non-invasive detection methods. Integrated Protection in Field Vegetables IOBC OBC-WPRS Bulletin Vol.142, 2019 . 8-16 8
3. Wu, L.B., Holtkamp, F., Wairich, A., & Frei, M. 2019. Potassium Ion Channel Gene OsAKT1 Affects Iron Translocation in Rice Plants Exposed to Iron Toxicity. Frontiers in Plant Science, 10.
4. Bartak, M., Hajek, J., Morkusova, J., et al. 2018. Dehydration-induced changes in spec pectral reflectance indices and chlorophyll fluorescence of Antarctic e of Antarctic lichens with different thallus color, and intrathall intrathalline photobiont. Acta Physiologiae Plantarum, 40(10 10).
5. Bartak, M., Mishra, K.B., Mareckova A, M. 2018. Spectral reflectance indices sense desiccation induced changes in the thalli of Antarctic lichen Dermatocarpon polyphyllizum. Czech Polar Reports 8 (2): 249-259.
6. Gálvez, S., Mérida-García, R., Camino Ino, C. et al. 2018. Hotspots in the genomic architectu hitecture of field droughtresponses in wheat as breeding targets. Functional & Integrative Genomics.