Chenibec Grape Cultivar Cold Hardiness and Disease Resistance
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Solution Overview
Problem
There is a need for cold-hardy grape varieties with good winemaking characteristics that can produce high-quality sparkling and champagne-style wines, as existing cultivars are either less winter-hardy or more susceptible to disease.
Innovation Solution
The development of the 'Chenibec' grape cultivar, resulting from a controlled breeding program between Vitis hybrid 'E.S. 2-3-17' and Vitis vinifera 'Chenin blanc', which exhibits a vigorous growth rate, large golden fruit, and resistance to diseases like downy mildew, powdery mildew, and black rot, making it suitable for secondary fermentation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If existing grape cultivars are used for wine production, then winemaking characteristics can be achieved, but cold hardiness is insufficient
Solution Approach 1:
The patent combines two grape cultivars through controlled breeding: 'E.S. 2-3-17' which provides cold hardiness and vigorous growth, and 'Chenin blanc' which provides superior winemaking characteristics. The hybridization merges these complementary traits into a single cultivar that exhibits both winter hardiness and excellent wine production quality.
2Productivity
If existing grape cultivars are used, then fruit production can occur, but disease susceptibility increases
Solution Approach 1:
The breeding program merges the high productivity and vigorous growth of 'E.S. 2-3-17' with the disease resistance traits inherited from 'Chenin blanc'. The resulting hybrid maintains high fruit productivity while exhibiting reduced susceptibility to common grape diseases.
3Productivity
If larger fruit clusters are produced, then yield increases, but fruit density decreases
Solution Approach 1:
The patent optimizes the balance between cluster size and berry density through controlled breeding parameters. The hybrid produces large fruit clusters with shouldered configuration while maintaining medium to high berry density, achieving optimal packing arrangement that maximizes both yield and quality.
Data Source
AI summary
A new cultivar of grape plant named, ‘Chenibec’, that is characterized by its open and even plant habit, its fruit that is large in size and golden in color at maturity, its juicy berries with a crisp, fruity, wine-like taste, its large, shouldered, medium density fruit clusters that are full of berries, its vigorous growth rate and high level of fruit productivity, and its grapes that are suitable for secondary fermentation to produce sparkling and champagne style wine.