Posts Tagged: coast
New avocado proves tasty, safer to harvest at UC ANR Research and Extension Centers
A new avocado, one that complements the widely known ‘Hass,' will hit the world market soon. The ‘Luna UCR' variety (trademarked and patent pending) has several characteristics that should be of interest to both growers and consumers, said Mary Lu Arpaia, University of California Cooperative Extension subtropical horticulture specialist based at UC Riverside.
From the grower perspective, the tree is about half the size of the leading variety while producing approximately the same yield per tree as ‘Hass,' meaning that growers could plant more trees per acre, therefore increasing yield. It also makes harvesting easier and safer.
Another advantage is the flowering behavior of the tree. Avocado trees are categorized into either Type A or Type B flower types. It is generally accepted that you need both flower types in a planting to maximize productivity. The ‘Hass' is an “A” flower type and ‘Luna UCR' is a Type “B.”
This is a potential boost for growers since the current varieties that are “B” flower types ripen green and generally receive lower prices for the grower. Similar to ‘Hass,' however, the ‘Luna UCR' colors as it ripens.
“Hopefully, it will receive similar returns to the ‘Hass' once it is an established variety,” Arpaia added.
Fruit breeding is a long-term process that she has navigated by building upon the work of her predecessors. Of course, Arpaia has had strong support from colleagues as well, including Eric Focht, a UC Riverside staff researcher and co-inventor of ‘Luna UCR.'
“We had been looking at ‘Luna UCR' for some time and it was always a very good eating fruit,” Focht said. “After the 2003 release of ‘GEM' (registered and patented as ‘3-29-5', 2003) and ‘Harvest' (patented as ‘N4(-)5', 2003) varieties, ‘Luna UCR' was always the top contender for a next release due to the small, narrow growth habit, “B” flower type and the fruit quality.”
“It's a very nice-looking fruit as well and seemed to be a pretty consistent bearer from year to year.”
A glimpse at how it all started
In spring 1996, Arpaia took over the UC Avocado Breeding Program following Guy Witney who led the program from 1992 to 1995, and Bob Bergh whose initial efforts in the 1950s were foundational in the inception of ‘Luna UCR.'
Arpaia recalls the first trials in the early 2000s of ‘Luna UCR,' which were tested alongside other promising selections from the Bergh program. “There were a lot of varieties that didn't perform well, some of which had poor storage life, an important trait that we need if we are going to get the fruit to consumers across the country,” said Arpaia.
The original seed and selection were planted at the Bob Lamb Ranch in Camarillo, and originally advanced trials of the ‘Luna UCR' variety were planted in four locations: UC Lindcove Research and Extension Center in Tulare County, UC South Coast Research and Extension Center in Orange County, a privately owned farm in San Diego County and another one in Ventura County.
The RECs are among the nine hubs operated by UC Agriculture and Natural Resources to support research and educate the public on regional agricultural and natural resource challenges.
ANR Research and Extension Centers become vital
Unfortunately, the 2017 Thomas Fire burned the avocado trees in Ventura, said Arpaia. After a change in management, the trial located in San Diego County was also terminated, leaving the two trials at Lindcove and South Coast REC.
“South Coast REC has a long history of supporting research and extension activities of high value crops important to California, including avocados,” said Darren Haver, director of the South Coast REC, which was often used to show growers the new varieties that were being developed.
“Many of the REC staff have worked with the avocado-breeding program researchers for more than two decades and continue to work closely with them to ensure the success of new avocado varieties, including ‘Luna UCR',” he added.
In addition to the support provided by South Coast and Lindcove RECs, Arpaia said that UC Kearney Agricultural Research and Extension Center in Fresno County – another UC ANR facility – made it possible for her team to conduct critical postharvest and sensory research, and consumer testing of the fruit, which included up to six-week trials of fruit ratings for storage life and taste.
“UC ANR has played an important role in our ability to not only identify ‘Luna UCR', but in preparing it for the world market, too,” she said.
Preparing to share with the world
Since 2015, Focht had been collecting data for the patent application. Now that he and Arpaia have successfully patented and trademarked ‘Luna UCR,' they are preparing to expand production by engaging interested growers with the commercial partner, Green Motion who is based in Spain.
“Green Motion contracted for 1,000 trees to be generated by Brokaw Nursery and those trees are currently being distributed, with earliest field plantings likely taking place in fall,” explained Focht.
Focht also said that Mission Produce, based in Oxnard, CA has contracted to graft over a small number of “B” flower type pollinizer trees to the new ‘Luna UCR' variety, possibly making way for a small number of avocados to be available the following year.
Once planted, the avocado trees will come into “full” production in about five years.
To read this story in Spanish, visit: https://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=58991
Cooperative Extension fire advisor and UC graduate students gather around the fire
Besides starting fires for the sake of research, Luca Carmignani, UC Cooperative Extension fire advisor for San Diego, Orange, Los Angeles, and Riverside counties, has started leveraging his connection to local UC campuses by providing opportunities for hands-on learning.
Early one morning in May, students and staff from UC Irvine and UC Riverside gathered at the South Coast Research and Extension Center to collect data for their own research projects. South Coast REC, located in Irvine, is part of a statewide network of research and education facilities operated by UC Agriculture and Natural Resources.
In one area of the field, graduate students picked leaves and twigs from dried shrubs, carefully placing them in a device that measures moisture content. In another area, a postdoctoral scholar set up a device that records levels of particulate matter, carbon dioxide and other air pollutants emitted by a fire.
Tirtha Banerjee, professor in the Department of Civil and Environmental Engineering at UC Irvine, coordinated the field day with Carmignani. The two first connected as members of iFireNet, an international network of networks that connect people to fire research, when Carmignani was a postdoctoral researcher at UC Berkeley.
Now, the two are collaborating to help environmental science and engineering students realize the potential of their research interests.
Jacquelynn Nguyen, a Ph.D. student in the Civil and Environmental Engineering department at UC Irvine, is interested in understanding how ash from wildfires and prescribed burns can be used as a treatment for per- and polyfluorinated substances. PFAS are a group of “forever chemicals” that can be found in heat-resistant materials – including fire extinguisher foam – and are extremely difficult to eliminate.
Before Nguyen could collect her ash samples, Carmignani needed to cautiously set the dried shrubs on fire, providing a realistic situation for data collection purposes.
“We're trying to figure out if the ashes from these fires can be used as activated carbon, which could be used as a treatment for PFAS,” said Nguyen. “We want to see if this treatment can basically absorb PFAS and prevent it from traveling into soil and groundwater.”
While Nguyen is concerned about the impact that wildfires have on the land, Soroush Neyestani, a postdoctoral scholar in the Environmental Sciences department at UC Riverside, is interested in its impact on the air quality.
During a fire, it's difficult to determine how much emissions are a result of flames versus smoldering, the process of burning slowly with smoke but no flames, and current air quality models do not provide accurate guidance on this matter. Using an air quality sensor, Neyestani wants to quantify the difference in emission levels during the two phases.
“There are assumptions that 50% of emissions come from smoldering, but every fire is different. Our main objective is to improve the accuracy of air-quality forecasting,” Neyestani said, noting his concern that these assumptions might not be realistic.
Although the field day was created with the students in mind, Carmignani used the opportunity to polish his own research efforts. Since fall 2022, he has been investigating the flammability of low-water use landscape plants based on various irrigation applications.
“Every time we burn, I feel like we get better. We get better data, and we conduct better analysis, and that's really important for us so that we can figure out how we can apply our research and measure its outcome,” said Carmignani.
In addition to welcoming more collaborations with UC campuses and other organizations, Carmignani is hopeful that these combined research efforts will spark an interest in wildfire awareness everywhere.
Public invited to observe prescribed fire training June 4-9
The Monterey Bay area will host part of the first California Central Coast Prescribed Fire Training Exchange, or Cal-TREX.
Fire practitioners from across the state, greater North America and international locations (Spain, Honduras, Costa Rica, Ecuador) are gathering for a Prescribed Fire Training Exchange on June 3-10.
The training is hosted by the Central Coast Prescribed Burn Association, which empowers the public to build a culture of “good fire” and helps private landowners conduct prescribed burns in Monterey, San Benito and Santa Cruz counties.
Prescribed burns will be open for the public to observe on various days throughout the training, most likely June 4-9, depending on the weather. Please see the CCPBA webpage for updates on upcoming burns: http://calpba.org/centralcoastpba.
Prescribed Fire Training Exchanges (TREX) first came to Northern California in 2013, and have made a dynamic, positive cultural shift concerning prescribed fire, within both regional fire services and the general public. These “good fire” TREX events have drawn significant attention, especially in the context of more severe wildfire seasons.
After months of cross-organizational cooperative planning, participants in the weeklong training will be burning a mix of grassland, oak woodland and shrub vegetation types, and make a lasting, positive change concerning “good fire” on the Central Coast.
The TREX will provide experiential training opportunities to advance regional prescribed fire capacity, while also enhancing research to better understand the ecological response of wild plant and animal species following fire.
At this TREX event, participants will learn how to safely conduct prescribed burns in various vegetation types across three counties. Along with multiple prescribed burns, the weeklong program will include lectures and seminars on local fire ecology of plant and animal species, tribal burning practices and burn planning led by multiple burn bosses and other experts.
Burn locations may include the Nyland property (owned by Trust for Public Land and San Benito Agricultural Land Trust) near San Juan Bautista, the Santa Lucia Conservancy near Carmel Valley and the Kechun Village (owned by the Nason family) in Arroyo Seco.
Be advised, while the CCTREX works closely with the Monterey Bay Air Resources District (MBARD) to assure good smoke dispersal, smoke may be seen and present in these areas during and after a burn. Please see the CCPBA webpage for updates on upcoming burns: http://calpba.org/centralcoastpba.
BurnBot, a new technology featuring a mobile burn chamber, remote-controlled mastication and fire drone systems, will be used for the prescribed burn on June 4. To observe the Nyland burn on June 4, register at https://bit.ly/CCPBApublicRxfire. Details including time and directions will be emailed to registered participants.
Participants and partners include members of the Amah Mutsun Tribal Band and the Esselen Tribe of Monterey County, University of California Agriculture and Natural Resources, Resource Conservation District of Monterey County, CAL FIRE, local land trusts, scientists, ranchers, students, researchers, land managers and others. The CCPBA is funded by two CAL FIRE wildfire prevention grants.
For more information, contact Jamie Tuitele-Lewis, fire fuel mitigation program and forest health coordinator, at jtlewis@rcdmonterey.org or Barb Satink Wolfson, UC Cooperative Extension area fire advisor, at bsatinkwolfson@ucanr.edu.
$1.5M North Coast project to improve food access even during disasters
New food systems partnership to aid disaster response in Del Norte, Humboldt, Mendocino, Sonoma, Napa and Marin counties
To improve people's access to food during disasters, University of California Cooperative Extension advisors Dorina Espinoza and Julia Van Soelen Kim received a combined $1.5 million from the USDA Agricultural Marketing Service Regional Food Systems Partnership Program and crucial matching contributions from local government, nonprofits and foundations. Over a three-year period, they will create a California North Coast Emergency Food System Partnership across six counties – Del Norte, Humboldt, Mendocino, Sonoma, Napa and Marin – to strengthen local and regional food systems and build community resilience.
“We wouldn't have been able to access these funds without UC providing the backbone,” said project partner Suzi Grady of Petaluma Bounty, an urban farm and food security project. “The trusted relationship with UC allows us to broaden our reach and scope; the neutrality piece is also really important. It's a natural fit for UC to step in.”
Grady added, “I'm excited by this opportunity because UC can provide evaluation, reflect back to us what happens in disasters, and help build our collective capacity when those of us who are busy doing are too busy to step back and reflect. Having academic partners helps us retain institutional knowledge, learn from the past and strategize for the future."
Meredith Knowles with the Del Norte and Tribal Lands Food Security Project agreed, “I have seen so many times that the relationship building, coordinating and making space for sharing is so important and the momentum that comes from that is powerful. I'm excited for the space to share that.”
Learning from past disasters
Following earthquakes in Humboldt County last December, UC Cooperative Extension advisor Espinoza took part in the Community Organizations Active in Disaster or “COAD,” collaborating with local government, agencies and organizations to support a Local Assistance Center in Rio Dell, the town hit hardest by the quakes.
Espinoza and partners worked to connect impacted neighbors with local, state and national services, including ensuring community members could access food right in their community through the local food bank and local food trucks, which prepared meals for residents who were unable to use their kitchens.
In January, with storms in the forecast, Mimi Enright, UCCE Sonoma County community food systems program manager, activated the COAD's Emergency Food Group in Sonoma County. She discussed with Van Soelen Kim, UCCE North Bay food systems advisor, as well as local emergency food providers, how their network could respond to food needs that might arise if flooding occurred.
“Before the storm, we met and asked, ‘What populations might be most impacted? What organizations might be offline because of the storm? Who will be able to deliver groceries and meals to sites in the community?'” Enright explained.
Further north in Del Norte County along the Oregon border, there are limited entry points and no major highways, leaving the region vulnerable to natural disasters. Road access to and from the county is frequently blocked by landslides, wildfires and floods, resulting in disruptions to food deliveries.
The Del Norte and Tribal Lands Community Food Council – a group that works to build a more local food system by providing healthy, culturally appropriate food to families – learned from past closures and from the pandemic the importance of having local and regional systems in place to better respond to the emergencies that impact the isolated area of the state. Their Choice Pacific Pantry includes local products in its food distribution programs and their Pacific Fresh Mobile Market brings food directly to vulnerable rural communities with limited access to nutritious food.
Over the past five years, Northern California has experienced catastrophic wildfires, floods, landslides, drought, earthquakes and the pandemic, all of which have put increasing pressure on local producers, the local/regional food system and emergency food aid.
“Food is implicated in every disaster,” said Patti D'Angelo Juachon with the Marin Community Foundation.
Through the various challenges to their communities, Espinoza, Enright and Van Soelen Kim have extended their expertise related to emergency food systems. Collectively the UCCE team has gained firsthand knowledge about what works well and what doesn't in getting local food to food-insecure community members. They hope to share this knowledge with partners regionally and expand collaboration at a larger scale.
“Local food production is critical to the resilience of the North Coast,” said Lynda Hopkins, Sonoma County District 5 supervisor. “I'm thrilled that UCCE will be working with our farmers to ensure that we can feed our residents healthy, local food no matter what disaster we're facing – be it future flood, fire or pandemic. This is a huge step towards food security for Northern California!”
Collaborating across the North Coast
“The Regional Food Systems Partnership Program will help to build a more resilient and stable food system in times of disaster and in times of stability,” said Heather Irwin, founder of Sonoma Family Meal. “This is very important work for the future of Northern California disaster relief efforts, and we are excited to be part of it. During disasters, Sonoma Family Meal coordinates resources between the restaurant industry and emergency meal providers in order to provide quality emergency meals for those who have been impacted.”
One way the team hopes to strengthen local and regional food systems is by reducing the risk of lost income and creating additional market channels for local food producers in emergency food supply chains. The team also plans to create a network of partners, develop emergency feeding plans, and inventory local emergency food supply chain infrastructure. They also plan to create recommendations for policies and practices that support local/regional emergency food supply chains.
/h3>South Coast REC supports school-to-work pipeline for students with disabilities
Before Brent Flory, 22, started bagging fruits and vegetables at his local Stater Bros. Market, he picked them at the University of California South Coast Research and Extension Center in Irvine.
In partnership with Saddleback Unified School District's Esperanza Education Center, an adult transition program that provides independent living and life skills training for students with disabilities, South Coast REC hosts students on its 200 acres of land and introduces them to careers in agriculture.
Flory recalls picking avocados as one of his favorite moments from the program at South Coast, one of nine RECs across California operated by UC Agriculture and Natural Resources. “I picked a huge avocado and got to bring it home. It was the size of a medium pumpkin,” he shared.
Field work doesn't warrant business attire, but Flory said that working at South Coast REC taught him the importance of dressing appropriately for work. In this case, it meant pants, closed-toe shoes, a shirt with sleeves, and sunscreen or a hat if working in the sun.
While program managers hope that participating students would pursue a career in agriculture, South Coast REC is more concerned about providing opportunities for students to gain real work experience in a unique setting.
“This is the first time I have had the opportunity for my students to work at a job site in the agricultural field. We never really thought of the agricultural industry as an option for our students,” said Esperanza's education specialist, Michael Seyler.
Esperanza's partnership with South Coast REC began in October 2019. Since then, nine participants have been assigned to work at the research center where they help create seedlings, plant and harvest crops, and learn plant management.
Ray Bueche, Adult Transition Program coordinator and Career Start administrator at Esperanza, is proud of the creative energy it took to develop the program and unite partners, crediting Jason Suppes, South Coast REC's community education specialist. “Working with Jason and UC ANR has inspired me to continue to reach for unique partnerships in this field and elsewhere,” Bueche said.
Dylan Shelden, 19, another past participant, said that the program revealed how important it is for him to choose a career that makes him feel happy and independent. “You are responsible for yourself,” he said. “So, don't quit on the first try.”
Shelden currently works at Party City as a store organizer. Even though he prefers working indoors, Shelden described working with plants and being outdoors as refreshing. “Working in agriculture makes me feel good,” he said.
When asked what advice he would give incoming students, Shelden said: “Be kind, mindful, and thoughtful to others.”
“Things are constantly changing at the farm and follow seasonal patterns. Students get to work with different types of produce depending on the season. So many of my students only thought about jobs in retail or food services industries,” said Seyler. “This has opened their eyes to other possibilities.”
The soft skills learned while working at South Coast REC has helped other students secure paid competitive employment during or following the program. It has also inspired program staff like Bueche and Seyler to consider other unique opportunities for their students to connect the skills they have learned on the farm to other types of jobs.
To learn more about the Adult Transition Program at Esperanza Education Center, visit: https://www.svusd.org/schools/alternative-schools/esperanza/about/why-esperanza