Image-based phenotyping to estimate anthocyanin concentrations in lettuce.

ABSTRACT: Anthocyanins provide blue, red, and purple color to fruits, vegetables, and flowers. Due to their benefits for human health and aesthetic appeal, anthocyanin content in crops affects consumer preference. Rapid, low-cost, and non-destructive phenotyping of anthocyanins is not well developed. Here, we introduce the normalized difference anthocyanin index (NDAI), which is based on the optical properties of anthocyanins: high absorptance in the green and low absorptance in the red part of the spectrum. NDAI is determined as (I_red - I_green)/(I_red + I_green), where I is the pixel intensity, a measure of reflectance. To test NDAI, leaf discs of two red lettuce (Lactuca sativa) cultivars 'Rouxai' and 'Teodore' with wide range of anthocyanin concent

SUBMITTER: Kim C 

PROVIDER: S-EPMC10109386 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature