Sheegene-3 Grapevine Hybridization for Seedless Fruit Quality
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Solution Overview
Problem
There is a need for a new variety of Vitis vinifera that produces a red seedless grape with improved flavor and size, maturing later than existing varieties like 'Flame Seedless' but maintaining characteristics through asexual propagation.
Innovation Solution
The 'Sheegene-3' grapevine, resulting from the hybridization of 'Princess' and 'Red Globe', produces medium to large red seedless grapes with enhanced flavor, maturing in early August and propagated on 'Harmony' virus-free rootstock, exhibiting characteristics distinct from 'Flame Seedless' such as larger size and sweeter taste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the grape variety matures earlier like 'Flame Seedless', then the harvesting time is advanced, but the grape size and flavor quality are reduced
Solution Approach 1:
The patent applies parameter changes by creating a hybrid grape variety with modified ripening parameters. The 'Sheegene-3' variety was developed through controlled hybridization to achieve a specific maturity timeline (early August) that balances timely harvest with superior grape characteristics including larger size (1.10-1.18 inches longitudinal) and enhanced flavor quality, thus optimizing the time-quality parameter relationship
2Quantity of substance
If the grape size is increased, then the yield per berry is improved, but the shipping and handling qualities may deteriorate
Solution Approach 1:
The patent applies local quality by optimizing specific structural characteristics of the grape. The 'Sheegene-3' variety has a balanced flesh-to-skin ratio with firm texture and medium skin thickness, which maintains structural integrity for shipping while providing large size (11.36 grams average weight). The conical cluster form and firm pulp also contribute to improved handling qualities despite increased berry size
Data Source
AI summary
The new and distinct variety characterized by a very large red seedless grape that ripens in early August three weeks later than the ‘Flame Seedless’ Grape (unpatented) with good favor, juicy and firm skin. The berries are born on strong woody stems and branches and are well adapted to commercial handling.