Twilight Blackberry Cultivar Trait Combination

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Solution Overview

Problem

There is a need for a new blackberry cultivar that combines high plant vigor, thornless canes, early ripening, firm and abrasion-resistant fruit, excellent flavor, and larger fruit size, while maintaining winter tolerance and disease resistance, which existing cultivars such as 'Chester Thornless', 'Triple Crown', and 'Loch Ness' do not fully address.

Innovation Solution

The 'Twilight' blackberry cultivar, derived from a cross between 'Ouachita' and 'ORUS 2867-4', exhibits a semi-erect growth habit, early ripening, firm and sweet fruit, and high yield, with characteristics such as high plant vigor, thornless canes, and excellent flavor, achieved through asexual propagation and microcutting techniques.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If existing cultivars such as 'Chester Thornless', 'Triple Crown', and 'Loch Ness' are used, then certain desirable traits are present, but they do not fully combine high plant vigor, thornless canes, early ripening, firm and abrasion-resistant fruit, excellent flavor, and larger fruit size

Engineering Contradiction:

Improvecombination of traitsVSAvoidwinter tolerance and disease resistance

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent combines multiple desirable traits from different parent cultivars into a single new cultivar 'Twilight'. The cross between 'Ouachita' (thornless female) and 'ORUS 2867-4' (thornless male) merges thornless canes, early ripening, firm fruit, and good flavor into one variety that exhibits all these characteristics simultaneously, resolving the contradiction of not being able to find existing cultivars with this complete trait combination

Inventive Principle:

Principle #5Merging (Combining)

2Productivity

If the new cultivar 'Twilight' is developed with multiple improved traits, then fruit quality and plant vigor are enhanced, but the complexity of breeding and propagation increases

Engineering Contradiction:

Improveyield and fruit qualityVSAvoidbreeding and propagation process

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The new cultivar 'Twilight' exhibits stable inheritance of its desirable traits through asexual propagation. The plant maintains its characteristics (thornless canes, early ripening, firm fruit, good flavor) consistently across generations without requiring complex intervention, allowing for reliable commercial propagation through cuttings and tissue culture

Inventive Principle:

Principle #25Self-service

Data Source

PatentUSPP30879P2Blackberry plant named ‘Twilight’

Publication Date: 2019.09.10 THE GOVERNMENT OF THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY DEPARTMENT OF HEALTH & HUMAN SERVICES

AI summary

A new and distinct blackberry cultivar that originated from seed produced from a cross between the thornless female blackberry plant ‘Ouachita’ (U.S. Plant Pat. No. 17,762) and the thornless, male parent blackberry plant ‘ORUS 2867-4’ (unpatented)). This new blackberry cultivar can be distinguished by being fairly early ripening for a semi-erect blackberry, by its large sized, very firm berries with tough skin and a crisp texture when eaten and excellent flavor, by its high yields borne on a vigorous plant with a semi-erect type growth habit and by its completely thornless canes.