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Effect of Cultivar on Chlorophyll Meter and Canopy Reflectance Measurements in Cucumber [PDF]
Sensors, 2020 Optical sensors can be used to assess crop N status to assist with N fertilizer management. Differences between cultivars may affect optical sensor measurement.
Romina de Souza +5 more
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Design and Implementation of a Low-Cost Chlorophyll Content Meter
Sensors, 2023 Chlorophyll meters are portable devices used to assess and improve plants’ nitrogen management and to help farmers in the determination of the health condition of plants through leaf greenness measurements.
Spyros Panagiotakis +1 more
exaly +5 more sources
A Leaf‐Patchable Reflectance Meter for In Situ Continuous Monitoring of Chlorophyll Content
Advanced Science, 2023 Plant wearable sensors facilitate the real‐time monitoring of plant physiological status. In situ monitoring of the plant chlorophyll content over days can provide valuable information on the photosynthetic capacity, nitrogen content, and general plant ...
Kaiyi Zhang +6 more
doaj +4 more sources
Effect of Irradiance on Chlorophyll Estimation with the Minolta SPAD-502 Leaf Chlorophyll Meter [PDF]
Annals of Botany, 1998 Leaf chlorophyll content may be used as an indirect indicator of crop nitrogen status. Chlorophyll meter values (SPAD values) taken with the Minolta SPAD-502 chlorophyll meter in the shade plantOxalis acetosellaL. and in winter wheat (Triticum aestivumL.) varied by 15 and 8%, respectively, with variation in irradiance.
exaly +2 more sources
The implementation of the SPAD-502 Chlorophyll meter for the quantification of nitrogen content in Arabica coffee leaves [PDF]
MethodsXThe utilization of a non-destructive SPAD-502 chlorophyll meter, which enables the measurement of nitrogen status in plant leaves, has gained popularity in agronomic crops.
Suwimon Wicharuck +6 more
doaj +2 more sources
Optimal leaf positions for chlorophyll meter measurement in rice
Frontiers in Plant Science, 2016 The Soil Plant Analysis Development (SPAD) chlorophyll meter is one of the most commonly used diagnostic tools to measure crop nitrogen status. However, the measurement method of the meter could significantly affect the accuracy of the final estimation ...
Zhaofeng eYuan +7 more
doaj +2 more sources
SensorsChlorophyll fluorescence is a well-established method to estimate chlorophyll content in leaves. A popular fluorescence-based meter, the Opti-Sciences CCM-300 Chlorophyll Content Meter (CCM-300), utilizes the fluorescence ratio F735/F700 and equations ...
Philip Townsend +2 more
exaly +3 more sources
Evaluation and calibration of noninvasive leaf chlorophyll meters for wheat
Journal of Agrometeorology, 2015 Nondestructive and fast chlorophyll assessment can be made with portable chlorophyll meters. The meters measure the transmittance of red and near infrared radiation through the leaf and estimates the chlorophyll in non-dimensional index values by ...
M. M. LUNAGARIA, H.R. PATEL, VYAS PANDEY
doaj +2 more sources
Effect of Leaf Phosphorus and Potassium Concentration on Chlorophyll Meter Reading in Rice [PDF]
Plant Production Science, 1999 Chlorophyll meter (SPAD) is a convenient tool to estimate leaf nitrogen (N) concentration of rice plants. There is no information on the effects of leaf phosphorus (P) and potassium (K) concentration on SPAD readings and on the relationship between SPAD values and leaf N concentration in the literature.
Kenneth Cassman, Shaobing Peng
exaly +3 more sources
Procedia Computer Science, 2016 AbstractA regular and periodic monitoring of crop health is essential in any cultivation. An important parameter which act as indices of crop health is the leaf chlorophyll measurement. In the Asian part of the world, Betel vine (Piper betle L., family Piperaceae) ranks second to coffee and tea in terms of daily consumption.
Amar Kumar Dey
exaly +2 more sources