Prime-Ark Traveler blackberry variety

Rating [ 4.8 ]

Thornless primocane-fruiting blackberry with shipping-quality fruit

Botanical designation

Rubus subgenus Rubus Watson 'Prime-Ark Traveler'

Originated from a cross of

Originated from a cross of APF-49T x A-2293T

Variety denomination

Variety denomination - 'APF-190T'

Plants are

Plants are thornless

Bushes have

Bushes have erect canes

Fruit weight is

Fruit weight is 7 g


Berries have a oblong shape

Fruiting habit

Fruiting habit - primocane-fruiting (everbearing)

Begins to bloom in the

Begins to bloom in the first week of May

Harvest season starts in the

Harvest season starts in the second week of June

Secondary blooming in the

Secondary blooming in the third week of June

Second harvest season in the

Second harvest season in the first week of August

Productivity is

Productivity is 2,6 kg per plant

Soluble solids

Soluble solids - 11%


Acidity - 0.85%

Cold hardiness is

Cold hardiness is moderate

Heat tolerance is

Heat tolerance is low

Country of origin

Country of origin - United States


Patent US PP28,598 P3 dated November 06, 2017

Current status

Current status - cultivated (actual)

Prime-Ark Traveler (patented as APF-190T) is the commercially released thornless two-season-fruiting blackberry with shipping-quality fruit. This development was intended primarily as a commercial cultivar to be grown for fruit production for either shipping or local sales. It likely will have value as a home-garden plant also. This was the fifth in the University of Arkansas Prime-Ark Brand Primocane-Fruiting Blackberry cultivar line following the release of Prime-Jan and Prime-Jim in 2004, Prime-Ark 45 in 2009 and Prime-Ark Freedom in 2013.
This blackberry fruits on current-season canes (primocanes) and on second-season canes (floricanes), potentially providing for two cropping seasons. In addition to having thornless canes, Prime-Ark Traveler produces high-quality berries of medium-large size with good flavor, and potential for shipping and postharvest storage.
Prime-Ark Freedom, a previous primocane-fruiting cultivar from Arkansas, combined thornlessness and primocane fruiting, but did not have shipping-quality fruit characteristics. Floricane yields of Prime-Ark Traveler are statistically similar to Prime-Ark 45, but the floricane yields of Prime-Ark Traveler are generally less.
Floricane mean first harvest date for Prime-Ark Traveler is the beginning of June, similar to Prime-Ark 45. Primocane first ripe fruit date ranged from the end of July to the beginning of August, that is earlier than Prime-Ark 45. Canes of Prime-Ark Traveler are erect, however, the plants should be grown with supporting trellis wires placed on either side of the plant row at ~ 1.3 m height to help support the canes, as the primocane crop can be produced on the more distal portion of the canes.
Fruits of Prime-Ark Traveler is elongated in shape and attractive with a glossy, black finish. Berry shape is usually uniform with fewer double and (or) misshapen fruits than that seen on Prime-Ark 45 and Prime-Ark Freedom, an occurrence thought to be related to summer heat on primocane bud and flower differentiation.
Average floricane berry weight of Prime-Ark Traveler ranges from 7 to 9 g, similar to Prime-Ark 45, Ouachita and Osage.
It will be very important in management of Prime-Ark Traveler that canes be double tipped to maximize yield and maintain primocane height (double-tip the primocanes first at 50 cm and then subsequent branches tipped at ~ 50 cm).
Table 1. Comparison table of floricane and primocane yield of two primocane-fruiting and two floricane-fruiting blackberry, planted in 2011
Cultivar Yield, kg/ha
2012 2013 2014
Floricane harvests
Prime-Ark Traveler 11015 22420 9826
Natchez 29195 36443 20060
Ouachita 18370 30775 14981
Prime-Ark 45 20366 31803 11924
Primocane harvests
Prime-Ark Traveler - 4306 7479
Prime-Ark 45 - 6525 6493
Table 2. Averaged berry weight of two primocane-fruiting and two floricane-fruiting blackberry, planted in 2011
Cultivar Fruit weight, g
2012 2013 2014
Floricane harvests
Prime-Ark Traveler 7.0 6.7 7.5
Natchez 7.5 8.3 9.7
Ouachita 6.5 6.2 7.9
Prime-Ark 45 6.6 7.1 7.6
Primocane harvests
Prime-Ark Traveler - 5.2 7.2
Prime-Ark 45 - 6.3 5.7
Table 3. Comparison table of floricane and primocane yield of two primocane-fruiting and two floricane-fruiting blackberry, planted in 2012
Cultivar Yield, kg/ha
2013 2014 2015
Floricane harvests
Prime-Ark Traveler 13057 13283 8961
Natchez 38342 21725 -
Ouachita 23052 12456 17332
Prime-Ark 45 20845 10234 8283
Primocane harvests
Prime-Ark Traveler 4963 7568 10287
Prime-Ark 45 7798 4978 10540
Table 4. Averaged berry weight of two primocane-fruiting and two floricane-fruiting blackberry, planted in 2012
Cultivar Fruit weight, g
2013 2014 2015
Floricane harvests
Prime-Ark Traveler 6.7 7.3 8.7
Natchez 8.3 10.9 -
Ouachita 6.2 7.4 7.5
Prime-Ark 45 7.1 7.9 6.6
Primocane harvests
Prime-Ark Traveler 4.7 6.4 5.3
Prime-Ark 45 6.6 7.3 5.1
Table 5. Comparison table of soluble-solid content, titratable acidity and pH parameters of blackberry cultivars
Cultivar Parameter
Soluble solids, % Acidity, % pH
Prime-Ark Traveler 9.4 0.8 3.2
Natchez 9.5 1.1 2.8
Ouachita 11.8 1.0 3.1
Osage 10.0 1.0 3.2
Prime-Ark 45 11.2 0.9 3.2
Prime-Ark Traveler 11.1 0.8 3.3
Natchez 10.9 1.1 3.1
Ouachita 11.2 1.1 3.1
Prime-Ark 45 11.4 0.8 3.3

How to cultivate blackberry

How to cultivate blackberry Prime-Ark Traveler?

1. Avoid wet area when planted new bushes;
2. Annual pre-emergence and postemergence herbicide applications;
3. Annual spring nitrogen fertilization (56 kg/ha) using ammonium nitrate;
4. Additional fertilization (23 kg/ha) after the floricane crop production is completed in July;
5. Tipping primocanes at 42 inch height two times each season usually in mid-June and late July or early August;
6. Dormant pruning of primocane-fruiting plants must include removing dead floricanes and removing primocane tissue to a point below the fruiting (flowering) area on the primocanes;
7. Dormant pruning of floricane-fruiting plants must include removing dead floricanes and pruning lateral branches to ~ 0.4 m in length;
8. Use drip irrigation;
9. A single application of iron sulfate in late fall (October) and lime sulfur (94 L/ha) at budbreak in early spring;
10. Plant spacing at least 0.6 m.
Diseases resistance

What diseases is blackberry Prime-Ark Traveler resistant to?

Prime-Ark Traveler has very good resistance to diseases such as AnthracnoseOrange Rust
Diseases susceptibility

What diseases is blackberry variety Prime-Ark Traveler vulnerable to?

Prime-Ark Traveler is quite prone to diseases such as Grey MoldSpur Blight or Purple Blotch (Didymella Applanata)
Relevant documents

Relevant documents for Prime-Ark Traveler blackberry variety:

Useful Growing Guides

Useful Growing Guides:

Prime-Ark Horizon (APF-268)
Previous variety
Prime-Jan (APF-8)
Next variety

Reviews of the variety Prime-Ark Traveler


Dr. John R. Clark describes the features of Prime-Ark® Traveler, the latest primocane-fruiting blackberry from the University of Arkansas System Division of Agriculture fruit breeding program.

Review from [SPOOKY]

I have to say, ya'll developed an amazing blackberry plant!!!! I just ate my first Prime-Ark Traveler blackberry! It was juicy and a nice mix of tart and sweet. One flower came a bit earlier than the rest so one blackberry was done before the others. Soon the rest of the berries will ripen and I'll get to enjoy a good amount for its first fruiting season at least 50 or more. I planted it last year (a small 8" inch plant), and it's proven extremely weather hardy here in Southeast Texas (zone 9), considering it went through that crazy freeze we had for that one week and the super hot temperatures we had last summer. I was concerned when I first planted it because I had to use a rather shallow raised bed (only 10" deep) but it has really grown! It is about 4' high, with several laterals ranging from 18-24". I have wild thorny blackberries that are native on my property, but I love the ease of growing and harvesting this thornless erect variety. I hope to eventually have about 6 plants.

Review from [LSU AGCENTER]

Get It Growing: Prime-Arc Traveler blackberries have many advantages
We’re still in spring and blackberries are growing profusely. On this edition of Get It Growing, LSU AgCenter horticulturist Heather Kirk-Ballard visits with horticulturist Kiki Fontenot about the exciting thornless blackberry variety named Prime-Ark Traveler.


EMCO CAL - APF 190T Blackberry Variety - English Subtitle

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