Onion Downy Mildew Severity in Conventional, Rational, and Organic Production Systems

A study conducted at the Epagri Ituporanga Experimental Station in 2013 and 2014 assessed five onion production systems. The dataset likely contains weekly severity assessments, integrated disease progress (AUDPC), final severity, and total commercial crop yield. The research was authored by Leandro Luiz Marcuzzo and published via an open access platform.

Use Cases

• Compare the efficacy of fungicide reduction strategies based on the described rational production systems.
• Model the relationship between disease severity and crop yield based on the reported area under the disease progress curve (AUDPC).
• Analyze the performance of organic-approved fungicides based on the described organic system treatments.
• Evaluate the sustainability trade-offs of different production systems based on the reported yield and disease severity metrics.

Strengths

• Experimental design includes four replicates per treatment, suggesting statistical rigor.
• Data spans two growing years (2013 and 2014), allowing for inter-annual comparison.
• Specific yield results are reported, such as 37.59 Kg.ha-1 for Rational System II in 2013.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to a single experimental station in Brazil.

Provenance

Source

Leandro Luiz Marcuzzo via paperswithcode

Collection Method

Field experiment with a randomized block design, weekly severity evaluations, and analysis of variance.

Time Range

2013, 2014

Geography

Epagri Ituporanga Experimental Station, Brazil