Abstract
Abstract Quantitative assessment of plant diseases can be done relatively quickly and practically, especially when applying digital image processing. This paper discusses digital image potential for assessing mosaic symptoms caused by the Tobacco mosaic virus (TMV). Chili plants ( Capsicum annuum L.) were grown in pots and subjected to two treatments, i.e., non-inoculated (V0) and TMV inoculated (V1). Plant image recording using a Canon 750D camera with a kit lens was done once a week, starting when the mosaic symptoms are first visible, i.e., in the second-week post-inoculation. Recorded images in RAW format were first converted to TIFF, then subjected to further analysis using image processing applications, namely GIMP 2.8 and Fiji-ImageJ. Differences in the RGB profile of leaves given V0 and V1 treatment was observed. Non-inoculated leaves (V0) have a dark green color pattern, while TMV inoculated leaves (V1) tend to have a mixed color pattern of dark green and bright green. In general, this indicates a decrease in chloroplast’s ability to absorb light in diseased leaves, reducing the photosynthesis level. This preliminary experiment shows digital image processing’s potential for estimating the severity of mosaic disease with a high degree of accuracy and precision.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
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Claims 5
Claim · model-written summary
TMV inoculation altered the RGB profile of chili leaves.
Not reportedTaxon
Verbatim
e0“Differences in the RGB profile of leaves given V0 and V1 treatment was observed.”
Claim · model-written summary
Non-inoculated leaves had a dark green pattern.
Not reportedTaxon
Verbatim
e0“Non-inoculated leaves (V0) have a dark green color pattern, while TMV inoculated leaves (V1) tend to have a mixed color pattern of dark green and bright green.”
Claim · model-written summary
TMV-inoculated leaves tended to show mixed dark and bright green patterns.
- Treatment
- TMV inoculatede0
- Interactor
- TMV
Tobacco mosaic viruse0pathogen - Outcome
- mixed color pattern of dark green and bright greene0
Not reportedTaxon
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Non-inoculated leaves (V0) have a dark green color pattern, while TMV inoculated leaves (V1) tend to have a mixed color pattern of dark green and bright green.”
Claim · model-written summary
The authors interpret the diseased leaf colors as reduced light absorption and photosynthesis.
- Organ / stage
- diseased leavese0
- Outcome
- photosynthesis levele0
- Qualifier
- decrease in chloroplast’s ability to absorb lighte0
Not reportedTaxon
Verbatim
e0“this indicates a decrease in chloroplast’s ability to absorb light in diseased leaves, reducing the photosynthesis level.”
Claim · model-written summary
Digital image processing was judged to estimate mosaic severity with high accuracy and precision.
Verbatim
e0“This preliminary experiment shows digital image processing’s potential for estimating the severity of mosaic disease with a high degree of accuracy and precision.”