Strawberry Cultivar Breeding for High Class I Yield and Fruit Uniformity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing strawberry cultivars face challenges in achieving high yields, uniform fruit shape, firm skin, low acid content, and consistent cropping with high disease tolerance, while also exhibiting varying growth habits and fruit characteristics.
Innovation Solution
The development of the Fragaria x ananassa 'Eves Gloria' cultivar, which is adapted to the UK climate, offers high fruit yields, uniform conical fruit shape, firm skin, low acid content, and vigorous growth with dense canopy, along with tolerance to Botryotinia cinerea and moderate susceptibility to powdery mildew.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing strawberry cultivars are grown, then fruit production occurs, but yields are insufficient and Class I fruit percentage is low
Solution Approach 1:
The patent applies parameter changes by selecting and breeding for specific genetic traits that control fruit development parameters. The cultivar 'Eves Gloria' exhibits consistent fruit size (38-48g), uniform conical shape, and high Class I percentage (85-95%) through controlled breeding that optimizes genetic parameters for yield and fruit quality uniformity simultaneously.
2Strength
If fruit skin firmness is increased, then storage life improves, but juiciness and eating quality may deteriorate
Solution Approach 1:
The patent applies local quality by differentiating properties between different parts of the fruit. The skin exhibits firmness (resistant to bruising) while the flesh maintains high juiciness and soft texture. This spatial differentiation of mechanical properties allows the skin to protect the fruit during storage while the interior remains pleasant to eat.
3Object-generated harmful factors
If acid content in fruit is reduced, then eating quality improves, but disease tolerance may be compromised
Solution Approach 1:
The patent employs disease tolerance mechanisms that do not rely on high acid content. The cultivar 'Eves Gloria' shows tolerance to Botryotinia cinerea and moderate susceptibility to powdery mildew through alternative defense mechanisms, allowing low acid content (4-6%) to be achieved without compromising overall disease resistance.
4Stability of the object's composition
If cropping consistency is improved, then supply reliability increases, but genetic stability must be maintained through propagation
Solution Approach 1:
The patent applies copying through asexual propagation methods (stolon rooting and tissue culture) that create genetically identical copies of the selected plant. This ensures the unique characteristics of 'Eves Gloria'—including consistent cropping, fruit quality, and disease tolerance—are stably reproduced across generations without genetic variation.
Data Source
AI summary
A new cultivar of Fragaria plant named ‘Eves Gloria’ that is characterized by its high fruit yields with a very high percentage of that fruit being marketable as Class I, its vigorous growth habit with a dense canopy, its foliage that is strongly blistering, moderately glossy and relatively dark in color, its leaves that are predominantly concave in cross section, its fruit that is primarily conical in shape, highly glossy and large in size, and its fruit with moderate to high sugar levels and high juiciness.