Pick up know-how for tackling diseases, pests and weeds.
Farm bill, farm marketing, agribusiness webinars, & farm policy.
Find tactics for healthy livestock and sound forages.
Scheduling and methods of irrigation.
Explore our Extension locations around the state.
Commercial row crop production in Arkansas.
Agriculture weed management resources.
Use virtual and real tools to improve critical calculations for farms and ranches.
Learn to ID forages and more.
Explore our research locations around the state.
Get the latest research results from our county agents.
Our programs include aquaculture, diagnostics, and energy conservation.
Keep our food, fiber and fuel supplies safe from disaster.
Private, Commercial & Non-commercial training and education.
Specialty crops including turfgrass, vegetables, fruits, and ornamentals.
Find educational resources and get youth engaged in agriculture.
Gaining garden smarts and sharing skills.
Timely tips for the Arkansas home gardener.
Creating beauty in and around the home.
Maintenance calendar, and best practices.
Coaxing the best produce from asparagus to zucchini.
What’s wrong with my plants? The clinic can help.
Featured trees, vines, shrubs and flowers.
Ask our experts plant, animal, or insect questions.
Enjoying the sweet fruits of your labor.
Herbs, native plants, & reference desk QA.
Growing together from youth to maturity.
Crapemyrtles, hydrangeas, hort glossary, and weed ID databases.
Get beekeeping, honey production, and class information.
Grow a pollinator-friendly garden.
Schedule these timely events on your gardening calendar.
Equipping individuals to lead organizations, communities, and regions.
Guiding communities and regions toward vibrant and sustainable futures.
Guiding entrepreneurs from concept to profit.
Position your business to compete for government contracts.
Find trends, opportunities and impacts.
Providing unbiased information to enable educated votes on critical issues.
Increase your knowledge of public issues & get involved.
Research-based connection to government and policy issues.
Support Arkansas local food initiatives.
Read about our efforts.
Preparing for and recovering from disasters.
Licensing for forestry and wildlife professionals.
Preserving water quality and quantity.
Cleaner air for healthier living.
Firewood & bioenergy resources.
Managing a complex forest ecosystem.
Read about nature across Arkansas and the U.S.
Learn to manage wildlife on your land.
Soil quality and its use here in Arkansas.
Learn to ID unwanted plant and animal visitors.
Timely updates from our specialists.
Eating right and staying healthy.
Ensuring safe meals.
Take charge of your well-being.
Cooking with Arkansas foods.
Making the most of your money.
Making sound choices for families and ourselves.
Nurturing our future.
Get tips for food, fitness, finance, and more!
Understanding aging and its effects.
Giving back to the community.
Managing safely when disaster strikes.
Listen to our latest episode!
March 4, 2021
By Fred MillerU of A System Division of Agriculture@AgNews479
Download related PHOTOS: https://flic.kr/s/aHsmTZ8NS5
CLARKSVILLE, Ark. — Prime-Ark® Horizon, a new primocane-fruiting blackberry from the
Arkansas Agricultural Experiment Station, offers growers a new option with an extended
fruiting season and high yield potential.
Prime-Ark® Horizon is a thorny variety and the sixth primocane-fruiting blackberry
from the experiment station’s fruit breeding program. Experiment Station fruit breeders
have released 21 public blackberry varieties since James N. Moore began the program
Blackberry plants produce biennial canes that have a lifespan of two years, said John
R. Clark, Distinguished Professor of horticulture and fruit breeding for the Arkansas
Agricultural Experiment Station, the research arm of the University of Arkansas System
Division of Agriculture. Most blackberries flower and fruit on the second-year canes,
known as floricanes. Harvest date for floricane blackberries on Prime-Ark® Horizon
averaged about June 12 at the Division of Agriculture’s Fruit Research Station near
Primocane fruiting blackberries flower and bear fruit in spring or early summer on
those floricanes, Clark said. They then flower and fruit on the first-year canes,
or primocanes, later in the summer. For Prime-Ark® Horizon, the first harvest on primocanes
begins about Aug. 4 and extends to as late as mid-October.
“That’s a fruiting period of over 60 days, which is longer than any other primocane-fruiting
variety from our breeding program,” Clark said. “Prime-Ark® Horizon just fruits longer,
and that makes for a nice extended picking season for Arkansas growers.”
Clark said Prime-Ark® Horizon makes an excellent complement to Prime-Ark® 45, which
has similar postharvest potential and ripens about six days earlier.
Prime-Ark® Horizon’s floricane berry crop has high yield potential, exceeding 30,000
pounds per acre in some years, Clark said. He advises pruning to control the harvest
and to balance the yield between floricanes and primocanes. A very large floricane
crop can also lead to smaller leaf size and upward leaf curling on floricanes, which
can hurt plant health, he said.
The primocane yields at the Fruit Research Station ranged from 3,000 to 9,000 pounds
Berries average 7.8 grams overall, Clark said, and floricane berries can get as big
as 10 grams. Primocane berries average 7.3 grams. Prime-Ark® Horizon berries have
good flavor with light aromatics, though they can be tart, especially when floricane
yields are high.
Postharvest storage for seven days has been comparable to Prime Ark® 45 for reversion,
a postharvest disorder in which black drupelets revert from fully black to a reddish
color, Clark said. The berries retain excellent firmness. Leakage and decay are minimal,
measuring among the best in the Arkansas program.
Prime-Ark® Horizon plants have shown good health, except when floricane yields were
excessive. Clark said he observed no orange rust or anthracnose on the plants, and
they showed very little winter damage in temperatures down to 1 degree Fahrenheit.
More information about Prime-Ark® Horizon is available online: http://bit.ly/PA-HorizonFlyer.
Prime-Ark® Horizon is available for licensing to propagators. Contact Cheryl Nimmo
for licensing information at 479-575-3953 or by email at firstname.lastname@example.org.
Clark said he and breeding colleague Margaret Worthington, assistant professor of
horticulture, have more exciting primocane and floricane blackberries in the pipeline
as they continue to develop improved varieties.
To learn more about the Arkansas Agricultural Experiment Station fruit breeding program,
visit the program’s website: https://aaes.uark.edu/fruit-breeding/
To learn more about Division of Agriculture research, visit the Arkansas Agricultural
Experiment Station website: https://aaes.uark.edu. Follow us on Twitter at @ArkAgResearch and Instagram at ArkAgResearch.
About the Division of Agriculture
The University of Arkansas System Division of Agriculture’s mission is to strengthen
agriculture, communities, and families by connecting trusted research to the adoption
of best practices. Through the Agricultural Experiment Station and the Cooperative
Extension Service, the Division of Agriculture conducts research and extension work
within the nation’s historic land grant education system.
The Division of Agriculture is one of 20 entities within the University of Arkansas
System. It has offices in all 75 counties in Arkansas and faculty on five system campuses.
The University of Arkansas System Division of Agriculture offers all its Extension
and Research programs and services without regard to race, color, sex, gender identity,
sexual orientation, national origin, religion, age, disability, marital or veteran
status, genetic information, or any other legally protected status, and is an Affirmative
Action/Equal Opportunity Employer.
Media Contact: Fred MillerU of A System Division of AgricultureArkansas Agricultural Experiment Station(479) email@example.com