Chlorophyll measurements in Alstroemeria sp. using SPAD-502 meter and the color space CIE L*a*b*, and its validation in foliar senescence

Title:

Chlorophyll measurements in Alstroemeria sp. using SPAD-502 meter and the color space CIE L*a*b*, and its validation in foliar senescence

Creator:

Villegas-Velázquez, I., Zavaleta-Mancera, H. A., Arévalo-Galarza, M. L., Suarez-Espinosa, J., Garcia-Osorio, C., Padilla-Chacon, D., Galvan-Escobedo, I. G., and Jimenez-Bremont, J. F.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:89f68ab6-afce-4cb7-b4fa-1d0c513918ad
uuid:89f68ab6-afce-4cb7-b4fa-1d0c513918ad
doi:10.32615/ps.2022.007

Subject:

Akaike, color measurements, greenness, ornamentals, photosynthetic pigments, and SPAD calibration

Type:

model:article and TEXT

Format:

počítač and online zdroj

Description:

Our research aimed to study the correlation between the SPAD-502 readings and the color space CIE L*a*b* values in two cultivars of Alstroemeria sp. during leaf senescence and to evaluate the statistical criteria used in the selection of the best fit calibration functions. We demonstrate the importance of the Akaike information criterion and the parsimonious function besides the coefficient of determination. The reliability of the functions was tested by Student's t-test comparison between the chlorophyll (Chl) estimated from SPAD readings and their chemical concentrations. Polynomial and Hoerl function described well the changes in Chl a and total Chl (a+b) during senescence, but calibration functions are required to perform for each cultivar. We demonstrated that CIE L*a*b* system is reliable to estimate SPAD reading at stages of leaf senescence of Alstroemeria sp. and can be used instead of SPAD-502.

Language:

Multiple languages

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

230-239

Source:

Photosynthetica | 2022 Volume:60 | Number:2

Harvested from:

CDK

Metadata only:

false