Sheegene 29 Grapevine Resolving Shatter and Maturity Trade-off
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Solution Overview
Problem
There is a need for a new seedless grapevine variety that produces high-quality, medium-sized green grapes suitable for raisin production, with improved characteristics such as larger berry size, stronger attachment, and later maturity to avoid issues with shatter and sugar maturity timing, while maintaining excellent raisin quality and disease resistance.
Innovation Solution
The development of the 'Sheegene 29' grapevine variety, which is a cross between 'Flame' and 'Red Globe', produces medium-sized green seedless grapes with a unique apricot flavor and golden color, exhibiting higher vigor, larger leaves, and medium attachment strength, making it ideal for dehydrator raisin production with high production potential and excellent raisin quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If early-maturing grape varieties are used for raisin production, then sugar maturity is achieved earlier, but the grapes are prone to shatter and have weaker attachment strength
Solution Approach 1:
The patent applies parameter changes by developing a grape variety with modified genetic parameters that simultaneously achieve late maturity timing and strong attachment strength. The 'Sheegene 29' variety exhibits delayed ripening parameters while maintaining enhanced pedicel attachment strength, resolving the trade-off between early sugar maturity and shatter resistance through genetic parameter optimization rather than selecting between extreme alternatives.
2Quantity of substance
If larger berry size is achieved, then fresh grape yield increases, but attachment strength may be reduced leading to shatter issues
Solution Approach 1:
The patent employs composite material principles by creating a grape variety that combines the large berry size characteristics of one parent with the strong attachment strength traits of another parent. The 'Sheegene 29' variety synthesizes beneficial traits from both parents, achieving a composite phenotype that displays both large berry dimensions and enhanced pedicel attachment strength, effectively resolving the contradiction between quantity and reliability.
3Object-generated harmful factors
If green-colored grapes are produced, then a unique flavor profile is achieved, but the variety may differ from traditional raisin grape characteristics
Solution Approach 1:
The patent applies local quality principles by allowing the grape variety to exhibit green coloration and unique apricot-like flavor characteristics in the fresh fruit stage, while simultaneously ensuring that the dried raisin product achieves traditional quality standards. The variety displays different quality characteristics at different stages of the production process, with green color and unique flavor present in fresh berries but transformed into acceptable raisin characteristics after dehydration.
Data Source
AI summary
‘Sheegene 29’ is a new and distinct grapevine plant with novel characteristics that include good fertility, medium sized green (2.5 GY 6/2) seedless grape with a very good flavor for use in raisin production. The raisins have a unique candy-like apricot flavor and a bright golden color. The ‘Sheegene 29’ harvested period for fresh fruit is late August in the San Joaquin Valley of Central California.