A potential relationship between soil disinfestation efficacy and leaf green reflectance

Area of Science:

• Agricultural Science
• Plant Pathology
• Horticulture

Background:

• Traditional plant health assessment relies on destructive methods like plant size and yield.
• Soil fumigation poses environmental concerns, driving the need for sustainable alternatives.
• Image analysis offers a non-destructive, efficient method for monitoring plant health.

Purpose of the Study:

• To evaluate steam soil disinfestation as an alternative to chemical fumigation.
• To determine if RGB image analysis can quantify plant health and differentiate treatments.
• To establish RGB image analysis as an early indicator of treatment efficacy.

Main Methods:

• Soil disinfestation treatments included steam, chloropicrin, and a control.
• Plant health was assessed using RGB image analysis focusing on leaf greenness.
• Five distinct RGB color codes from dark to light green were analyzed.
• Results were correlated with total plant yield over two years.

Main Results:

• RGB image analysis of leaf greenness significantly differentiated steam and chloropicrin treatments from the control.
• No significant difference in greenness was observed between steam and chloropicrin treatments.
• The RGB greenness analysis showed a strong correlation with total plant yield.
• Findings were consistent and replicated over two experimental years.

Conclusions:

• RGB image analysis provides a reliable, non-destructive method for assessing plant health post-soil disinfestation.
• Steam disinfestation is a viable alternative to fumigation, with measurable effects on plant health.
• Image analysis can serve as an early, predictive marker for treatment success and crop productivity.