- Author: Michelle Leinfelder-Miles
Please save the date for the annual UC Dry Bean Field Day! UC Davis and UC Cooperative Extension will provide updates on dry bean research and management.
When: Tuesday, August 15th from 9:30-11:30am
Where: UC Davis campus, specific location will be forthcoming
Who should attend: California growers, consultants and allied industry professionals
In a future post, we will provide the agenda and information about continuing education credits. We hope you will join us at the field day!
- Author: Michelle Leinfelder-Miles
- Author: Nick Clark
The California Dry Bean Advisory Board (CDBAB) is requesting applied research proposals for 2023. This commodity-based research request is sponsored by the California Dry Bean Marketing Order, under the guidance of CDFA (CA Dept Food & Ag). The Board has supported applied research by university programs for many years.
Attached, please find the grant application as well as a list of the 2023 applied research priorities developed by the CDBAB. The Board is particularly interested in pest management projects to address weeds and insects. Funding is for one year. Proposals for projects extending beyond one year must be re-submitted each year.
Due to limited research funding, proposals that demonstrate cost sharing are encouraged. Although, there is some flexibility in the budget below, the total amount of funding available for 2023 is as follows:
Board: $60,000
Baby lima council: $2,500
Blackeye council: $10,480
Garbanzo council: $15,000
Large lima council: $0
Common bean council: $0
Total: $87,980
For current information on dry bean production in California as well as past reports funded by the board, see the Dry Bean webpage on the Agronomy Research and Information Center. You can search and view previously funded research reports from the online database.
Please share this call for proposals with colleagues and others who might be interested in dry bean research. Proposals are due by Friday, February 10, 2023. Progress reports for projects funded by the CDBAB in 2022 will also be due Friday, February 10, 2023. Attached is an example progress report.
Those who submit proposals should be prepared to give a brief presentation to the Board at their first meeting of the year, which usually occurs in early March. Funding decisions are communicated shortly thereafter by Board Manager, Nathan Sano.
With questions, or to submit 2023 proposals and 2022 final reports electronically, please email Michelle Leinfelder-Miles and Nick Clark, UC ANR co-liaisons to the CDBAB.
- Author: Michelle Leinfelder-Miles
Last week, the UC Dry Bean Field Day was held on the UC Davis campus. The field day included presentations on dry bean breeding efforts for yield, pest management, and nutritional properties. Other presentations showed how technologies, like drones, can be used to detect drought stress or other characteristics of interest to plant breeders and growers. Thank you to all who presented and all who attended the meeting. For those who were not able to attend, the handouts are attached to this post. Good luck with the 2022 harvest season!
Agenda
Remote Sensing of Plant Traits under Drought Stress
Nitrogen Fertility following Whole Orchard Recycling
Cowpea MAGIC Population
Improving Productivity and Nutritional Quality in Grain Legumes under a Changing Climate
Developing and Testing Complementary Sensors for Trait Prediction
Characterizing Bioaccessible Nutrition, Seed Coat Patterning, and their Genetic and Environmental Basis
- Author: Michelle Leinfelder-Miles
UC Davis and UC Cooperative Extension will host the UC Dry Bean Field Day on Thursday, September 1, 2022 from 9:00am to 11:00am. The field day will begin at the Campbell Tract on the UC Davis campus, which is a different location from where it has been in recent years. The agenda is pasted below, and a downloadable version is attached to the bottom of this post. CCA continuing education credits have been requested (2.0 units of Crop Management). Thanks for your interest, and we hope to see you at the field day!
Agenda:
Attendees are invited to venture into the fields to look at the lima breeding materials, cooperative dry bean nursery, and heirloom-like dry beans at the student farm (38.541667, -121.767111), with Travis Parker, UC Davis
UC Dry Bean Field Day Agenda
- Author: Sarah Light
- Contributor: Kassim Al-Khatib
- Author: Rachael Freeman Long
Unusual growth patterns were observed in a newly emerging baby lima field in Colusa County that were planted in late April, prior to a cold snap. The grower planted the field into baby limas at 70 lbs of seed per acre. The field was planted on April 28th in 3-4” row spacing at a 1.5 to 1.75 inch seeding depth. Soil temperature at planting was 57 degrees. The grower applied a pre-plant mix of Brawl (S-metolachlor) and Sonalan (ethalfluralin) at labeled rates. In the two weeks after planting, when beans were germinating and emerging, there was a cold spell, with a low of 37F.
The grower and PCA observed unusual growth patterns in seedlings including twisted and u-shaped stems, plants emerging and then growing back into the soil, stunting of the leaves and new shoots, swollen hypocotyl, and rusty red lesions on stems near the soil line. Some plants appeared to have hollow stems. About 20% of the plants did not emerge or died.
Plant samples were collected on June 1st and taken to the UC Davis Plant Pathology lab. At the lab it was observed that the lesions and abnormal vascular tissue, which often indicate disease, were not active infection sites. The tissue was not rotting or necrotic with some damage appearing more callous where damaged tissue had a clear end, and healthy tissue began (lesions did not extend into the stem tissue as one would expect from an infection). This type of damage is usually abiotic (not caused by a pathogen). Overall, diagnostic tests confirmed that there was no evidence of a pathogen and concluded that damage was caused by abiotic factors.
Seedlings grow more slowing in cool conditions and the baby limas had more residence time in the soil following germination because of the cool weather conditions. This led the bean shoots to absorb some of the pre-plant herbicide mix in the moist soils. Herbicides are designed to modify plant growth and the symptoms observed match expected symptoms from the tank mix that was applied.
Sonalan is MOA 3 (mode of action) and inhibits root growth. Brawl is MOA 15 and inhibits seedling shoot growth. Both in combination lead to stunted malformed plants with swollen stems and stubby roots as we saw in the field. Increased exposure from cold weather in wet soils along with a bit of soil crusting due to high magnesium levels in the soil led to unfortunate injury. Fortunately, plants will typically fill in and grow out of this type of abiotic damage as the season progresses. In the end, the field yielded well, over 3,500 pounds per acre (uncleaned).