Black Glory Grapevine Breeding for Muscat Flavor and Yield
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Solution Overview
Problem
There is a need for a new grapevine variety that combines mid-late ripening, high fertility, pear-shaped black berries, and a pleasant muscat flavor, which are not adequately addressed by existing commercial varieties.
Innovation Solution
The development of the 'BLACK GLORY' grapevine variety, resulting from a controlled breeding program between Vitis vinifera L. 'ARO 28' and 'ARO 6195', characterized by its vigorous growth, consistent fruit production, and unique berry characteristics, including a black skin and muscat flavor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing commercial grapevine varieties are used, then established growth patterns are maintained, but they fail to provide the desired combination of mid-late ripening, high fertility, pear-shaped black berries, and muscat flavor
Solution Approach 1:
The patent combines multiple desirable traits from different parent varieties through controlled cross-breeding. The female parent 'ARO 28' contributes black skin color and muscat flavor, while the male parent 'ARO 6195' contributes vigorous growth and fertility. The resulting 'BLACK GLORY' variety merges these characteristics into a single cultivar that simultaneously exhibits mid-late ripening, high fertility, pear-shaped black berries, and pleasant muscat flavor, resolving the contradiction between adaptability and productivity.
2Loss of time
If early ripening varieties are selected, then harvest time is reduced, but the desired mid-late ripening period is lost along with associated quality characteristics
Solution Approach 1:
The patent utilizes parameter changes in the breeding process to achieve the desired ripening period. By selecting specific parent varieties with appropriate ripening characteristics and controlling the cross-breeding conditions, the resulting 'BLACK GLORY' variety exhibits a stable mid-late ripening period (August-September in Bet Dagan, Israel). This parameter change in the genetic makeup ensures both the extended ripening duration and the associated quality characteristics are maintained.
3Quantity of substance
If berry size is increased, then yield per berry is improved, but berry shape uniformity and distinctive pear shape are compromised
Solution Approach 1:
Instead of selecting for large berry size and then attempting to maintain shape, the patent inverts the approach by first establishing the distinctive pear shape as the primary selection criterion. The female parent 'ARO 28' naturally produces pear-shaped berries, and this shape characteristic is maintained and enhanced in the progeny. The selection process prioritizes shape uniformity, and yield increases are achieved through high vine fertility rather than individual berry size enlargement, thus maintaining both shape distinction and overall productivity.
Data Source
AI summary
This invention relates to a new and distinct variety of a grapevine named ‘BLACK GLORY’. The new mid-late ripening, very fertile grapevine variety is particularly characterized by a pear-shaped, black skinned berry, having a pleasant muscat flavor.