Following is a brief outline of the Rice Field Day program:
7:30 - 8:30 a.m. REGISTRATION AND POSTER VIEWING
8:30 - 9:15 a.m. GENERAL SESSION
• CCRRF Annual Membership Meeting
• Rice Research Trust Report
• California Rice Industry Award
9:30 - Noon FIELD TOURS OF RICE RESEARCH
• Variety Improvement
• Disease Resistance
• Insects and Control
• Weeds and Control
Noon LUNCHEON CONCLUDES PROGRAM
Lunch will be served in the New Research Building with seating at the tables on the lawns under the canopies. The program will begin at 8:30 a.m. with a General Session that serves as the Annual CCRRF Membership Meeting. Posters and demonstrations will be in place during registration until after lunch. Field tours of research will emphasize progress in rice variety improvement, disease, insect, and weed control. The program will conclude at noon with a lunch that includes rice.
We hope to see you on August 31st. The RES is located at 955 Butte City Highway (Hwy. 162), approximately two- and one-half miles west of Highway 99 north of Biggs, California.
|EVENT:||UC Rice Pest Management Course 2021|
|DAY/DATE:||Friday, Sept. 10, 2021|
|LOCATION:||Hamilton Road Field (on West Hamilton Rd. between Hwy. 99 and Riceton Hwy., Biggs, CA)|
|EVENT TIME:||8:00 AM-3:25 PM (Check-in: 7:30-8:00 AM)|
|COST:||Non-student: $80/100; current student: $40/50|
This year will mark the 4th rice-specific course at the Hamilton Road Field and the Rice Experiment Station in Biggs, CA. The UC Rice Pest Management Course 2021 will begin with an interactive field tour of the research plots (Hamilton Road Field) where attendees can get up close to the weeds and rice (BRING YOUR BOOTS!) The course will include hands-on weed identification sessions on emerging and mature weeds and a disease and pest ID session. In the afternoon, speakers will address several pertinent topics in CA rice, including regulatory updates, new herbicides for resistance management, diseases and pests research updates, and how to construct a weed management program.
The course is a collaborative effort between UC Cooperative Extension (UCCE), UC Davis, and the California Rice Experiment Station (CRES.) “This course provides a strong foundation for weed and pest management in California rice, as well as a chance for interaction and discussion with researchers on the latest pests and pest control options for California rice systems” said Whitney Brim-DeForest, UCCE Rice Farm Advisor. The event is a great opportunity for pest control advisers, growers, industry, extension, and interested students to gain a deeper understanding of pest management topics that affect rice.
Enrollment is limited, so register early. The cost is $80 if received by 9/7/2021 and $100 if received after 9/7/2021 (if there is space.) The cost for current students with proof of student status is $40/$50. Online registration closes on 9/7/2021. If there is space, you can register onsite the day of the event. For more details or to register, visit http://wric.ucdavis.edu and click on RICE PEST MANAGEMENT COURSE.
CA DPR and CCA continuing education units pending approval.
If you have questions, contact Whitney Brim-DeForest [email@example.com or (530) 822-7515.]
AUGUST 25, 2021
The annual Rice Field Day will be Wednesday, August 25, 2021, at the Rice Experiment Station (RES), Biggs, California. We cordially invite you and your associates to join us for this event. The purpose of the Rice Field Day is to give rice growers and others an opportunity to observe and discuss research in progress at RES. Rice Field Day is sponsored by the California Cooperative Rice Research Foundation (CCRRF) and University of California (UC). We also seek and receive support from many agricultural businesses and are planning a rice equipment vendor display.
Following is a brief outline of the Rice Field Day program. We will update the program on our web page at www.crrf.org.
- 7:30 - 8:30 A.M. REGISTRATION
- Posters and Demonstrations
- 8:30 - 9:15 A.M. GENERAL SESSION
- CCRRF Annual Membership Meeting
- Rice Research Trust Report
- California Rice Industry Award
- 9:30 - NOON FIELD TOURS OF RICE RESEARCH
- Variety Improvement
- Disease Resistance
- Insects and Control
- Weeds and Control
- 12:00 - NOON LUNCH
The program will begin at 8:30 a.m. with a General Session that serves as the Annual CCRRF Membership Meeting. Posters and demonstrations will be in place during registration until after lunch. Field tours of research will emphasize progress in rice variety improvement, disease, insect, and weed control. The program will conclude at noon with a lunch that includes rice.
The RES is located at 955 Butte City Highway (Hwy. 162), approximately two and one half miles west of Highway 99 north of Biggs, California.
Date: August 3, 2021
Location: UCCE Sutter-Yuba Office
142A Garden Highway, Yuba City
Free (lunch provided)
9:00–9:30 am Research Updates 2020-2021 (Whitney Brim-DeForest, CE Rice Advisor)
9:30–10:00 am Weedy Rice Survey 2020 (Luis Espino, CE Rice Advisor)
10:00-10:15 am Weedy Rice Identification (Luis Espino, Whitney Brim-DeForest, CE Rice Advisors)
10:15–10:30 am —BREAK— (plants to view)
10:30–10:45 am Non-conventional Path to Pesticide Registration (Roberta Firoved, California Rice Commission)
10:45-11:00 am Preventing Spread of Weedy Rice with Certified Seed (Timothy Blank, California Crop Improvement Association)
11:00-11:15 am Weedy rice emergence under various environmental conditions (Liberty Galvin, PhD Candidate, UC Davis)
11:15 am —LUNCH—
This project is sponsored with funding from the California Rice Commission.
**CE credits (CCA, DPR) pending**
- Author: Bruce Linquist
Considerations for choosing the right medium grain rice variety
With planting season coming up, thinking about appropriate variety selection is key, and one of the first steps towards ensuring a good 2021 crop. Each year the California Rice Research Board funds a statewide variety trial testing program. Here I summarize some of that data.
Map showing variety trial locations in the Sacramento Valley. Dot color refers to nighttime temperatures in the last half of July (during booting). Red dots refer show locations where cold nighttime temperatures are not normally a concern for blanking. Yellow dots are those locations where cold temperatures more common, and the blue dot location is where cold temperatures occur almost every year. Temperatures are a concern when they drop below 58oF.
These trails are on grower managed fields in eight locations around the Sacramento Valley as seen in the map. One major difference in the locations selected is nighttime temperatures in mid to late July when most of the rice is booting. Cold temperatures during this period can cause blanking and lower yields. On the map, locations in red are where cold nighttime temperatures are usually not a problem. These locations are generally north of highway 20. In yellow are locations where growers need to be concerned about low nighttime temperatures; while they may not occur every year, they are common. In blue (South Yolo) is a location where cold temperatures occur almost every year. Importantly, in each of these regions may be micro-climates where temperatures vary from the “average”.
Some varieties are more tolerant of cold than others. Therefore, it is important to select varieties that are suitable for the location you are farming. In the tables below, are yield data from the past five years for each location in the variety trial. Only the main medium grains varieties are shown (M-105, M-206, M-209, M-210 and M-211). This data will allow for a more informed decision when it comes to variety selection.
The warmer locations are north of Hwy 20,in Glenn, Butte and Colusa counties. At these locations, M-211 consistently outperforms the other medium grains by 4 cwt/ac, on average, over the five years and four locations. Among the other varieties shown, there were no consistent differences among them.
In the cooler locations, M-209 performed the worst in general. In the moderately cool locations (yellow dots on the map), M-105 and M-211 both did consistently well. In the coldest location (South Yolo), M 105 performed the best; while M-209 and M-211 performed poorly. Both M-209 and M-211 have similar days to maturity (about 5-7 days later than M-206). This data suggest that M-211 may have a broader adaptability range than M-209 becasue it appears to be slightly more cold tolerant. However, in the coolest location even M-211 did not perform well.
M-206 versus M-210: M-206 has beenthe most broadly adaptable variety available. While it may not always be the highest yielder, it generally does well across all locations. M-210 is a new variety which has blast resistance. It is basically M-206 with genes for blast resistance and has similar time to heading. Based on these data M-206 and M-210 have almost identical yields in both the warm and cooler regions.
Thoughts on M-211: As seen in the data provided, M-211 is a tremendously promising variety in terms of yield potential. Furthermore, its sensory qualities are similar to premium grain varieties such as M-401. However, one draw back is that for good milling quality, M-211 needs to be harvested at 20-22% moisture. Harvesting below this moisture can result in low milling quality. Given this, it may not be a variety that is suitable for large acreage planting and this should be tested by growers.