Jive Apple Cultivar Red Fruit Coloration Breeding
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Solution Overview
Problem
There is a need for a new apple cultivar that exhibits distinct red coloration and maintains desirable traits such as vigor, disease resistance, and high productivity, which are not adequately met by existing apple varieties.
Innovation Solution
The development of the 'Jive' apple cultivar, which originated as a spontaneous mutation of 'GS48', characterized by its medium-strong vigor, upright habit, and distinctive red fruit coloration, with specific botanical features including smooth grey bark, red-purple flower buds, and low susceptibility to powdery mildew.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a new apple cultivar is developed with distinctive red coloration, then market appeal and distinguishability are improved, but breeding complexity and time requirements increase
Solution Approach 1:
The patent applies parameter changes by selecting and propagating a spontaneous limb sport mutation that exhibits distinct red coloration. The breeding process involved changing the color parameter of the fruit skin from the parent's yellow-green to a vibrant red flush, while maintaining other desirable traits through careful selection and asexual propagation.
Solution Approach 2:
The invention utilizes a spontaneous limb sport mutation that occurred naturally in the orchard, rather than requiring complex controlled breeding programs. The mutation self-generated the desired red coloration trait, which was then selected and propagated through budding, significantly reducing breeding complexity.
2Reliability
If disease resistance is improved through selective breeding, then reliability and productivity are enhanced, but breeding time and resource investment increase
Solution Approach 1:
The new cultivar 'Jive' inherited low susceptibility to powdery mildew from its parent 'GS48' through spontaneous mutation and selection. The disease resistance trait was already present in the parent stock, requiring only identification and propagation rather than lengthy breeding programs to develop resistance.
Solution Approach 2:
The parent cultivar 'GS48' already possessed the desirable trait of low susceptibility to powdery mildew before the mutation occurred. This preliminary presence of disease resistance in the parent stock allowed the new cultivar to inherit this trait without requiring additional time-consuming resistance breeding steps.
3Productivity
If fruit size and yield are increased, then productivity and market value improve, but tree vigor and health may be compromised
Solution Approach 1:
The patent achieves a balance between productivity and tree health by selecting for medium-strong vigor rather than extreme vigor. The fruit size is optimized at large (219 gm) without requiring excessive tree vigor, and the tree maintains good health through inherited disease resistance. This represents an optimization of the vigor-yield relationship rather than maximizing one parameter at the expense of another.
Data Source
AI summary
A new and distinct apple tree is disclosed. ‘Jive’, a limb sport of ‘GS48’, is notable for its distinctive fruit, which exhibits a red coloration, with strong defined striping present.