Sheegene-16 Grapevine Hybridization for Red Seeded Fruit Maturity
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Solution Overview
Problem
There is a need for a new variety of Vitis vinifera that produces large, red-colored seeded grapes with good flavor, which matures early enough for harvesting and shipment in the San Joaquin Valley of Central California, as existing varieties either produce black seedless grapes or exceptionally large red seedless grapes that may not meet flavor and maturity requirements.
Innovation Solution
The 'Sheegene-16' grapevine, resulting from the hybridization of 'R5V38-44' and 'Red Globe', produces large, red-colored seeded grapes with excellent flavor, maintaining its characteristics through asexual propagation and maturing in early September, addressing the need for a variety that combines size, color, and flavor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing varieties produce black seedless grapes, then seedless quality is improved, but color and flavor requirements are not met
Solution Approach 1:
The invention segments the grape variety characteristics by separating the seedless trait from the red color and flavor traits, allowing selective combination through hybridization to create a variety that meets all requirements simultaneously
Solution Approach 2:
The invention creates a composite grape variety by hybridizing two parent varieties, combining desirable traits from each parent to produce offspring with red color, seeded structure, good flavor, and appropriate maturity
2Shape
If red seedless grapes are produced, then color is improved, but flavor and maturity requirements are not met
Solution Approach 1:
The invention segments the grape characteristics to separate color from other quality traits, enabling independent selection and combination of red color with acceptable flavor and maturity through controlled hybridization
Solution Approach 2:
The invention changes the genetic parameters of the grape variety through hybridization, adjusting color, seed presence, flavor, and maturity parameters to achieve the desired combination of traits
3Productivity
If grapes mature early for harvesting, then productivity is improved, but other quality characteristics may be compromised
Solution Approach 1:
The invention optimizes the maturity parameter by selecting parent varieties with appropriate ripening characteristics, achieving early September maturity while maintaining quality through genetic selection
Solution Approach 2:
The invention creates a dynamic balance between maturity timing and quality characteristics through hybridization, allowing the variety to adapt to specific growing conditions in the San Joaquin Valley while maintaining consistent quality
Data Source
AI summary
A new and distinct variety of grapevine characterized by the production of large, red-colored seeded grapes that mature in early September, approximately six to eight weeks later than ‘Flame Seedless’ (unpatented) when grown in the San Joaquin Valley of Central California. The grapes of this new variety are produced on strong woody stems and branches and are well adapted to commercial handling.