IFG Twenty-five Grapevine Early Ripening Berry Quality
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Solution Overview
Problem
There is a need for a grapevine variety that produces high-quality, early-season, full-black berries with medium firm texture and neutral flavor, which can store well and be used for making excellent raisins, differing from existing varieties in terms of berry size, firmness, stem strength, and storage ability.
Innovation Solution
The grapevine 'IFG Twenty-five' is developed through a hand-pollinated cross of IFG 01073-094-195 and 01161-Bulk, characterized by its small to medium-sized elliptic berries, compact clusters, and ability to ripen one month earlier than its maternal parent, with stronger berry attachment and longer storage ability compared to similar varieties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the grapevine variety is selected for early ripening, then the ripening time is improved, but the berry size may be reduced
Solution Approach 1:
The patent applies parameter changes by selectively breeding for specific combinations of ripening time and berry size parameters. The variety IFG Twenty-five was developed through controlled cross-pollination and selection to achieve early ripening (one month earlier than maternal parent) while maintaining medium-sized berries through careful management of growth parameters and environmental conditions.
2Strength
If the grapevine variety is selected for firm berry texture, then the berry firmness is improved, but the berry size may be reduced
Solution Approach 1:
The patent utilizes parameter changes by selecting and breeding for firmness as a key quality parameter while managing berry size through controlled pollination and environmental factors. The variety exhibits medium firmness with medium-sized berries, achieving a balance through genetic selection from specific parent lines (IFG 01073-094-195 and 01161-Bulk).
3Strength
If the grapevine variety is selected for strong stem attachment, then the berry attachment strength is improved, but the cluster size may be reduced
Solution Approach 1:
The patent applies parameter changes by selecting for strong pedicel attachment as a quality parameter while managing cluster size through controlled pollination and environmental conditions. The variety demonstrates strong berry attachment to the pedicel, a trait inherited and enhanced through selection from the parent lines, allowing for compact but robust clusters.
4Duration of action of stationary object
If the grapevine variety is selected for long storage ability, then the storage duration is improved, but the fresh market suitability may be reduced
Solution Approach 1:
The patent applies universality by developing a variety that serves multiple market purposes. IFG Twenty-five is specifically noted for its dual suitability: the berries maintain quality for extended storage (up to eight weeks in cold storage) while also being excellent for fresh market consumption and drying to make raisins. This multi-functionality resolves the contradiction by making the variety adaptable to different market requirements.
5Shape
If the grapevine variety is selected for compact cluster, then the cluster compactness is improved, but the berry size may be reduced
Solution Approach 1:
The patent applies parameter changes by selecting for compact cluster formation as a quality parameter while managing individual berry size through controlled pollination and environmental factors. The variety produces medium-sized clusters that are slightly compact, with medium-sized berries, achieving a balance through genetic selection and environmental management.
Data Source
AI summary
This invention is a new and distinct grapevine variety denominated ‘IFG Twenty-five’. The new grapevine is characterized by producing small to medium size elliptic full black berries having medium firm texture with a neutral flavor and which ripen in early season. Berries are borne on medium size clusters which are slightly compact and may require gibberellin applications to thin clusters and size berries.