Blackberry plant named ‘Driscoll Eureka’

Details Blackberry plant named ‘Driscoll Eureka’ Blackberry plant named ‘Driscoll Eureka’

2002-11-27

2004-05-04

Grunberg, Anne Marie (Department: 1661)

Plants

Fruit

Bramble

Plant Patent

active

PP014765

ABSTRACT:

Latin name of the genus and species of the plant claimed: The variety is botanically identified as
Rubus L.
subgenus
Rubus.
BACKGROUND OF THE INVENTION
This invention relates to a new cultivar of blackberry called ‘Driscoll Eureka’ . The new cultivar was developed from hybridization of the female cultivar ‘Zorro’ (U.S. patent application Ser. No. 09/772,327) with the unpatented male selection BY45.1. The parents were crossed in 1996 where after fruit and seed were collected to produce seedlings for field planting in Watsonville, Calif. in 1997. The new cultivar was selected in 1998 for its good flavor and fruit firmness. The cultivar has been asexually propagated in Watsonville, Calif. and reproduced true to type plants by in vitro shoot tip culture.
SUMMARY OF THE INVENTION
The present invention provides a new and distinct blackberry cultivar named ‘Driscoll Eureka’. The variety is botanically identified as
Rubus L.
subgenus
Rubus
. The variety is a complex Rubus hybrid, which can be characterized as an erect tetraploid with considerable
R. allegheniensis
background with other species such as
R. trivialis, R. argutus, R. procerus
, and
R. ulmifolious
also appearing in its background. The new cultivar produces a floricane crop which begins in May and continues until late July. The new blackberry variety is distinguished from other varieties by a number of characteristics as set forth in Table 1. In particular, the new cultivar is distinguished by its early season, its low chill requirement, and its improved quality and shipping characteristics.
COMPARISON TO SIMILAR VARIETIES
The variety that we believe to be similar to ‘Driscoll Eureka’ from those known to us is ‘Olallie’, an unpatented variety. ‘Driscoll Eureka’ is particularly different from ‘Olallie’ by being slightly earlier ripening, having less postharvest color reversion, having less acidic flavor, and having better fruit firmness. Further detailed comparison of ‘Driscoll Eureka’ to ‘Olallie’ and ‘Chester’ is presented in Table 1.


REFERENCES:
The Newsletter of The North American Bramble Growers Association, Inc., “The Past, Present and Future of the American Black Raspberry,” vol. 18, Issue 1, Spring 2002.

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