Posts Tagged: Fruit and Nut Crop
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 firstname.lastname@example.org or (530) 754-9708.
One fruit, though, is not on the radar of foodies and foragers. Yet it's crunchy, sweet, flavorful, often seedless, and very common in Southern California landscapes. It's the fruit of the date palm, rarely thought of as a food source in our urban environment, more frequently viewed as a nuisance because dates fall off trees, where they create litter that must be cleaned up.
Unfortunately, coastal Southern California lacks the high sustained heat and aridity for proper fruit maturation and curing to produce traditional soft-ripe dates of good eating quality. The dates that fall from the trees have been unattractive to gather for sale and consumption, processes that could help to resolve the fruit litter problem in the landscape.
However, some varieties of dates can be eaten at a less than a mature state, traditionally called “khalal.” Fruit in the khalal stage have attained their maximum size, are typically yellow or red, have a sweet flavor, and are crunchy, somewhat like an apple. Several date varieties, like ‘Barhee,' are sometimes sold and eaten in the khalal stage. Fortunately, from a food standpoint (or unfortunately if you are a landscape manager), date fruits do mature to the khalal stage in coastal Southern California because high sustained heat and aridity are not required to attain this stage of development.
While ‘Barhee' is not too common as a landscape subject, another variety, ‘Zahidi,' is common and typically produces abundant fruits in coastal Southern California. These golden yellow fruits are conspicuous and showy in the khalal stage, are typically on the palm for several months from late fall to spring, and are really good to eat. Also, in many cases, these fruits are seedless! (Note to horticulture geeks: date palms are dioecious - separate male and female trees - and because nearly all edible date palms in the landscape are female, their flowers were pollinated by other species of landscape Phoenix. The resulting hybrid fruits are seedless, or pollination is not required for fruit to set and develop - parthenocarpy.)
Urban foragers looking for their next food adventure, or even a potential enterprise, might want to consider taking advantage of this otherwise nuisance and unwanted fruit. Khalal fruit can be gathered from the ground and cleaned. But it is best to collect them off the palm. Cutting an inflorescence (entire fruit stalk) and lowering it carefully to the ground would be ideal.
Khalal-stage fruits of the date variety ‘Zahidi’ are really good to eat: crunchy, sweet, and flavorful. Also, they are seedless (D. R. Hodel).