CH 101 Apple Variety Merging Scab Resistance with High Sugar Content
Solution Overview
Problem
Existing apple tree varieties lack a combination of large fruit size, high fruit sugar content, and scab resistance, along with distinct coloration, which are desirable traits for table fruit production.
Innovation Solution
The development of the 'CH 101' apple tree variety, resulting from a controlled cross between 'Gala' and 'K1R20A44', which exhibits large fruit, high sugar content, scab resistance, and an orange-red over-color, achieved through asexual propagation and grafting, retaining these characteristics across generations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing apple tree varieties are used, then general cultivation is possible, but they lack the combination of large fruit size, high sugar content, and scab resistance
Solution Approach 1:
The patent combines multiple desirable traits (large fruit size, high sugar content, and scab resistance) into a single apple variety through controlled cross-breeding. The 'CH 101' variety merges characteristics from parent varieties to achieve simultaneous expression of large fruit (180-200g), high Brix (14-16°), and Vf scab resistance, resolving the contradiction between disease resistance and fruit quality characteristics.
Solution Approach 2:
The patent achieves desired fruit quality parameters by selecting and breeding for specific genetic combinations that produce large fruit size (180-200g vs typical smaller sizes), high sugar content (Brix 14-16°), and disease resistance. The controlled cross-breeding process optimizes genetic parameters to simultaneously improve multiple fruit quality characteristics while maintaining scab resistance.
2Shape
If apple varieties are bred for large fruit size and high sugar content, then fruit quality improves, but resistance to scab may be compromised
Solution Approach 1:
The 'CH 101' variety merges large fruit size characteristics (180-200g, globose shape) with Vf scab resistance through controlled cross-breeding. The variety maintains the large fruit size and high sugar content desired for quality while incorporating genetic resistance to scab, eliminating the trade-off between fruit size and disease resistance.
3Reliability
If apple varieties are bred for scab resistance, then disease resistance improves, but fruit size and sugar content may be reduced
Solution Approach 1:
The patent successfully merges Vf scab resistance with high fruit sugar content (Brix 14-16°) and large fruit size in the 'CH 101' variety. The controlled cross-breeding process combines genetic traits to achieve simultaneous expression of disease resistance and high sugar accumulation, resolving the contradiction between resistance and sugar content.
Data Source
AI summary
A new ‘Gala’-type apple variety named ‘CH 101.’ The new variety is distinguished by its large orange-red fruit, high fruit sugar content, and resistance to scab.