Prime-Ark Traveler blackberry variety
Thornless primocane-fruiting blackberry with shipping-quality fruit
Rubus subgenus Rubus Watson 'Prime-Ark Traveler'
Originated from a cross of APF-49T x A-2293T
Variety denomination - 'APF-190T'
Plants are thornless
Bushes have erect canes
Fruit weight is 7 g
Berries have a oblong shape
Fruiting habit - primocane-fruiting (everbearing)
Flowering on floricanes starts in the second week of May
Ripening date (regular) - third week of June
Blooming on primocanes starts in the fourth week of June
Ripening date (remontant) - second week of August
Productivity is 2,6 kg per plant
Soluble solids - 11%
Acidity - 0.85%
Cold hardiness is moderate
Heat tolerance is low
Patent US PP28,598 P3 dated November 05, 2017
Current status - modern or widely used
Country of origin - United States
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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).
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 |
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 |
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 |
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 |
Cultivar | Parameter | ||
---|---|---|---|
Soluble solids, % | Acidity, % | pH | |
2013 | |||
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 |
2014 | |||
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 |
Is blackberry Prime-Ark Traveler sweet?
How to cultivate blackberry Prime-Ark Traveler?
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.