Posts Tagged: research
When the weather cools in the fall and the holidays draw near, orange orbs ripen on persimmon trees in California to offer a fresh autumn sweetness in time for Thanksgiving recipes and holiday décor.
At the UC South Coast Research and Extension Center (SCREC) in Irvine, a collection of 53 persimmon varieties are at their peak in November when the public is invited for tasting and harvesting at the annual persimmon field day.
“We want to raise awareness about persimmons,” said Tammy Majcherek, SCREC community educator. “It's a beautiful tree and a great addition to any landscape. Persimmon trees provide shade in the summer, healthy fruit in the fall, then drop their leaves and allow the sun's warmth to come through in the winter. It's a win-win situation as far as landscape trees go.”
The persimmon collection came to the research center in the 1960s, when the late UCLA subtropical horticulture professor Art Schroeder arranged to move his collection of persimmon varieties to another venue because the pressure of urban development at the Westwood campus became too great.
Persimmons are native in two parts of the world, China and the United States. The Chinese persimmon made its way to Japan, where its popularity soared. The American persimmon comes from the Southeastern United States, however, most California persimmons trace their lineage to Asia.
California leads the nation in persimmon production, according to the California Department of Agriculture Crop Report, but with a value of about $21 million in 2012, it represents just a small fraction of the state's $19 billion 2012 tree fruit and nut value.
Nevertheless, to the visitors who came out to tour UC's collection at SCREC, persimmon is a choice fruit. Participants on the early-morning VIP tour received a large shopping bag to fill with various varieties of fuyu and hachiya persimmons. Fuyu are flat, yellow-orange fruit that can be eaten right off the tree like apples or allowed to mature to a super-sweet soft pulp. Hachiya are redder, heart-shaped and astringent when not fully ripened. “If you bite it, it will bite your mouth right back,” said one participant.
However, after ripening to a jelly soft pulp or dried, the hachiya is equally delicious.
Shirley Salado, the UC Cooperative Extension Expanded Food and Nutrition Education Program supervisor in San Diego County, attended the persimmon tasting to gather fruit and information for her education program.
“The fuyu is great to eat,” Salado said. “When they ripen and become very soft, you can put the pulp in a blender and then freeze in zipper bags to add to healthy smoothies.”
Salado collected two large bags of persimmons to share with her nutrition education staff.
“Not everybody knows about these,” Salado said. “This gives them a chance to look at the fruit. This is what we promote.”
Following the tour, coordinator of the UC Master Food Preserver program at SCREC Cinda Webb demonstrated safe consumption by making cinnamon persimmon jam, dried persimmon chips, and a gourmet persimmon, basil, beet and rice salad.
Wild or brown rice persimmon salad
4 cups wild or brown rice, cooked
2 Fuyu persimmons, chopped
1 cup cooked, chopped beets
1 cup basic, chopped
8 oz feta cheese
½ cup orange cumin vinaigrette
Vinaigrette (makes about 1 cup)
½ cup orange juice
¼ cup olive oil
2 tsp rice vinegar
1 Tbsp maple syrup
1½ tsp cumin
1 tsp coriander
½ tsp salt
- Whisk together vinaigrette dressing ingredients
- Stir basil, beets, persimmons and feta into rice and toss with ½ cup vinaigrette.
- Top with persimmon slices and extra chopped basil for presentation.
Tree fruit and nut growers are invited to attend the “Principles of Fruit and Nut Tree Growth, Cropping and Management” course offered by the UC Fruit and Nut Research and Information Center. The annual two-week course will be held from Feb. 19, 2018, through March 1, 2018, at the UC Davis Activities and Recreation Center (ARC).
Understanding the fundamentals of tree biology is essential to making sound orchard management and business decisions in the fruit and nut industries. However, access to educational courses on basic fruit and nut tree biology, and how it relates to horticultural practices, is limited. This course incorporates lecture, lab exercises and field demonstrations to provide information on all aspects of plant biology and the relationship between tree physiology and orchard management.
Week 1 (Feb. 19 – Feb. 23) – Five days of lectures, hands-on exercises, demonstrations and field tour at the UC Davis Activities and Recreation Center and UC Davis teaching orchards.
Week 2 (Feb. 26 –March 1) – A four-day field tour throughout tree fruit and nut growing regions in Northern and Central California. The field tour includes visits to current UC experiments, processing facilities and orchards in a wide range of tree fruit and nut crops.
This course is designed by UC Cooperative Extension and UC Davis Department of Plant Sciences scientists for tree fruit and nut growers and professionals. People who have small acreage farms or who are new to the fruit and nut business are also welcome.
- The basics of how trees work
- Ideal climatic and soil conditions for tree fruit and nut crops
- Dormancy, chill requirements and rest breaking
- How trees grow and what determines architecture
- Understanding cropping, pollination and fruit set
- How trees use water and nutrients
- Fruit growth and development
- Harvest and harvest indices
- Postharvest quality and technology
Hands-on exercises and field demonstrations include:
- Bearing habits
- Measuring fruit quality and fruit tasting
- Pruning, training and light management
- Measurement of plant water status and irrigation scheduling
- Measurement of plant nutrient status and fertilization scheduling
The course instructors are experts in fruit and nut tree production:
- Ted DeJong, professor in the Department of Plant Sciences at UC Davis
- Carlos Crisosto, UCCE specialist and director of the Fruit and Nut Research and Information Center
- Patrick Brown, professor in the Department of Plant Sciences at UC Davis
- Astrid Volder, professor in the Department of Plant Sciences at UC Davis
- Kevin Day, UC Cooperative Extension farm advisor in Tulare County
- Ken Shackel, professor in the Department of Plant Sciences at UC Davis
There is no known comparable course in the United States that provides instruction by faculty and Cooperative Extension researchers in university research facilities. The course provides a UC Davis pomology education in a shorter time frame and at a reduced cost than is currently available through traditional university classes.
In previous years, participants have included first-time growers as well as established members of the California fruit and nut tree industries, growing almonds, walnuts, pistachios, stone fruit, pome fruit, and specialty tree crops. In course evaluations, participants stated that the course was “superb,” “an amazing opportunity” and “an interesting week of fruit tree wisdom.
Attendees will receive a certificate after completing the course.
The fee is $2,850 for the entire course (plus the lodging cost for the field trips), or $1,850 for the first week only. A scholarship is available for California growers under specific criteria.
Visit http://fruitandnuteducation.ucdavis.edu/education/principles to register and for more information about the program and instructors.
If you have any questions, please contact Julie Jacquemin at the Fruit and Nut Research Center at email@example.com or (530) 754-9708.
This time of year, you're probably thinking “Ahh, pecans!”
And particularly, “Ahh, pecan pie!”
We do love our pecans. The U.S. produces 80 to 95 percent of the world's pecans, and most are grown in Georgia, according to the UC Davis Fruit and Nut Research and Information Center (FNRIC). In 2014, the U.S. produced 133,165 tons of pecans (in-shell) valued at more than $400 million. Of that, California contributed 2,500 tons, valued at a little more than $10 million, or less than 2 percent.
“Although pecan trees have existed in California for more than a century, the first commercial orchard in California was established in the mid-1970s in the Clovis area," FNRIC relates on its website. “Since then, pecan production has spread throughout the Central Valley, but it is not nearly as widely cultivated as other nut crops (almond, pistachio and walnut) in California." The nuts thrive on long, hot summers for proper maturation.
The pecan (Carya illinoinensis), native to Mexico and the southcentral and southeastern regions of the United States, is a member of the Juglandaceae family, which includes hickory and walnut. "Remains of pecans were found in archaeological excavations in Texas with human artifacts dating back to 6100 B.C.," according to the Nutcracker Museum. "The pecan, which is native only to North America, was found in or near river beds, and was a staple in the diets of both the natives and the early settlers."
“What's great about pecans is that they are delicious!” says Amy Block Joy, emeritus UC Cooperative Extension specialist, who, true to her name, finds "joy" in pecans. “They are one of my favorite nuts.”
“Pecans are an excellent source of vitamin E and other antioxidants, fiber, some B-vitamins and are also good sources of potassium, copper, iron, manganese and zinc,” says Joy, who holds a doctorate in nutritional sciences from UC Berkeley. “They are a rich source of oleic acid, a mono-saturated fatty acid. Pecans do not contain any cholesterol.”
And nuts are good for you, she said, noting that a study published recently in the journal BMC Medicine reported that having a daily amount (at least 20 grams) of nuts "cut people's risk of coronary heart disease by nearly 30 percent, their risk of cancer by 15 percent, and their risk of premature death by 22 percent.”
Meanwhile, all over the country — especially the South — pecan pie is synonymous with the holidays. It's an iconic Southern cuisine, a 19th century invention, that probably originated in the 1800s. Harper's Bazaar published the first known pecan pie recipe in 1886. Today, cooks clamor to make it their own — adding everything from bourbon to rum to chocolate to orange zest.
My late mother, born and reared on a Texas ranch where pecan trees flourished, treasured the pecan pie. She always pronounced it “Peh-CAHN” (never PEE-can) and prefaced it with "rich." Not “rich,” as in wealthy, but rich as in “don't-eat-too-much-of-this-or-you-will-engage-in-a-hate-relationship-with-your-scales.” If you're thin and have to "stand up twice to make a shadow," as the Southern saying goes, then no worries!
Did you know that pecan pie is the state dessert of both Texas and Oklahoma? And that the pecan is the "state nut" of Alabama and Arkansas? In Tennessee, it's known as the "state health nut." That's because it is!
In the Garvey household, our favorite pecan pie recipe is loaded with nuts — two cups. That's 66 pecans per cup or a total of 132 pecans, says nutritionist Amy Block Joy, who knows how to put the "nuts" in nutrition. We know how to put the pie in the pantry, and then to the holiday table.
Garvey's Unforgettable Southern Delight Pecan Pie
Makes 9-inch pie
3 eggs, large
1 tablespoon cornstarch
1 cup dark corn syrup, Karo
3/4 cup loosely packed brown sugar (don't press down)
1 tablespoon of white sugar
1 to 2 tablespoons of good quality dark rum (we used Myer's original dark Jamaican rum)
1/4 cup butter, melted
1 teaspoon pure vanilla extract
2 cups toasted pecans, halves only
One 9-inch unbaked pie crust (recipe below)
Preheat oven to 350 degrees. Spread pecans on baking sheet and toast at 350 degrees for 6 to 10 minutes. Set aside. In medium bowl, beat eggs with a fork or wire whisk. Add cornstarch and mix until blended.
Add corn syrup, sugar, rum, butter and vanilla. Stir in toasted pecans. Pour mixture into pie crust. Cover outer crust with loosely placed, crimped aluminum foil to prevent excess browning.
Bake at 350 degrees for about 50 minutes. At 40 minutes, remove aluminum foil from outer crust and cook for another 10 minutes, or until knife inserted in center comes out clean. The center should be slightly firm to the touch but a bit jiggly.
Place pie on wire rack and let cool at room temperature for two hours before serving.
Crust for 9-inch pie:
1-1/4 cups all-purpose flour
1-1/2 teaspoons granulated sugar
1/2 teaspoon salt
1 stick or ½ cup of cold unsalted butter, cut into chunks
1/4 cup ice water, plus an additional tablespoon if needed
In a medium bowl, combine flour, salt and sugar. Cut butter into flour mixture until it resembles coarse crumbs. Gradually sprinkle the water over the dry mixture, stirring until dough comes together enough to form a ball. Wrap dough in plastic wrap and refrigerate for at least one hour. Roll the dough out into a 12- to 13-inch circle. Place in pie plate and let it overhang 1/2-inch. Crimp the crust.
There are plenty of opportunities for teachers and schools to celebrate and get involved in National Farm to School Month with the University of California Division of Agriculture and Natural Resources (UC ANR). Here are a few ideas to get you started.
4-H youth development
Launch a 4-H Club at your school. The 4-H Youth Development Program emphasizes enrichment education through inquiry-based learning. Core content areas include Healthy Living as well as Science, Technology, Engineering and Math (STEM). Clubs have access to a wealth of curricula materials exploring food, agriculture and natural resources. 4-H also offers the Ag in the Classroom school enrichment program.
Invite UC ANR academics and program staff to your career day or science fair or to make a classroom presentation. Specialists from Master Gardeners, Nutrition Education, Project Learning Tree, California Naturalist and other UC ANR programs know how to engage and inspire your students.
Some programs, including Project Learning Tree, offer "train the trainer" professional development workshops that equip educators with the skills and knowledge to teach concepts in their own classrooms. Project Learning Tree also provides free activity guides to teachers who attend their workshops. The guides highlight differentiated instruction, reading connections, and assessment strategies and offer ideas to integrate technology into classroom instruction,
Research and Extension Centers
Take your students on a field trip to a UC ANR Research and Extension Center (REC). The nine RECs in California are focal points for community participation and for active involvement in current and relevant regional agricultural and natural resource challenges.
Visiting a REC offers students a unique opportunity to learn about food production through the lens of applied science research in plant pathology, integrated pest management, conservation tillage, water conservation, development of new crop varieties, and much more. Some RECs also host extended education programs such as Sustainable You! Summer Camp and FARM SMART.
The 2016 National Farm to School Month theme is One Small Step, which highlights the easy ways anyone can get informed, get involved and take action to advance farm to school in their own communities and across the country.
Each week will have a different focus:
- Education (October 3-7)
- Healthy School Meals (October 10-14)
- Farmers & Producers (October 17-21)
- The Next Generation (October 24-28)
Join the celebrations by signing the One Small Step pledge then take your own small step to support healthy kids, thriving farms and vibrant communities this October by partnering with UC ANR.
This story en español.
The health of California youth reflects this disturbing national trend. To address the challenge of childhood obesity statewide, the California 4-H Food Smart Families program will be implemented at four sites in Fresno, Orange, Sutter-Yuba and Tulare counties this year. Additional UC partners will include the Expanded Food and Nutrition Education Program (EFNEP) and CalFresh.
Youth need to increase consumption of dark green veggies and whole grains, and decrease intake of sugar and saturated fats. The objective of California 4-H Food Smart Families is to increase knowledge and create behavior change related to nutrition, cooking, gardening, physical activity and food preparation. The program engages youth 8 to 12 years old and teens in 4-H Healthy Living programming. Youth will be directly reached through lessons delivered at after-school sites, low-resource elementary schools and organized field days at four UC Agriculture and Natural Resources Research and Extension Centers (REC): Kearney REC in Parlier, South Coast REC in Irvine, Sierra Foothill REC in Browns Valley and Lindcove REC in Exeter. The program is structured around positive youth development curricula and practices which provide an intensive engagement of underserved children, teens, families and other stakeholders. Local 4-H teens will be recruited and trained to deliver programs and assume leadership roles.
Programming at California sites will get underway this fall and will continue through the school year. Look for more exciting California 4-H Food Smart Families news in the coming months as programming and activities kick into high gear.
Author: Roberta Barton