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ARS Home » Crop Production and Protection » Research » Research Project #443879

Research Project: North Dakota: Establishing the infrastructure for disease prediction tools to manage root rot in pulse crops

Location: Crop Production and Protection

Project Number: 0500-00102-001-040-S
Project Type: Non-Assistance Cooperative Agreement

Start Date: Jun 1, 2024
End Date: May 31, 2025

Objective:
The overall project goal is to develop predictive tools from standardized and validated datasets to guide grower decisions targeting root rot in pulses.

Approach:
The project goals for pulses are conducted in three objectives: 1) Develop soil sampling methodologies for reliable detection of root rot pathogens; 2) Monitor commercial fields for soilborne inoculum, weather, and crop yield to quantify the economic impact of root rot disease; and 3) Develop a multipronged Extension and outreach approach to improve root rot management in pulse crops and facilitate the adoption of the root rot risk prediction model. For objectives 1 and 2, ten fields in North Dakota will be identified that have a history of root rot disease and will be planted to pulse crops. Historic and current metadata will be collected for each field for the last 15 years. Soil samples will occur at three timepoints through the growing season and sent to a cooperator for pathogen identification. Disease assessment will be conducted at the in-season sampling time point and rated for root rot using established rating systems. Greenhouse bioassays will be conducted on composite soil samples from each target area. Dry pea will be planted in the soil and seedling emergence will be counted and removed after 6 weeks to evaluate for disease and pathogens will be identified by qPCR. For objective 3, At least one grower-focused outreach event on root rot risk and management will be hosted, using a shop talk-style format to facilitate discussion and information exchange.