R10-45 Apple Tree Breeding for Early Maturity and Bitter Pit Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing apple tree varieties face challenges in early harvesting, storage characteristics, and susceptibility to physiological disorders, which affect their commercial viability and fruit quality.
Innovation Solution
The development of the 'R10-45' apple tree variety, resulting from a cross-pollination between 'Honeycrisp' and 'Cripps Pink' apple trees, which matures nearly two weeks earlier than its male parent and four weeks after its female parent, with improved sugar levels, fruit pressure, acid content, and resistance to bitter pit disorder, while maintaining a long storage life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If apple trees are bred for earlier maturity, then harvesting date is improved, but storage life and fruit quality may deteriorate
Solution Approach 1:
The patent applies parameter changes by selectively breeding for specific pomological traits including soluble solids content, pH, fruit pressure, and maturity date. The 'R10-45' variety achieves earlier maturity (2-4 weeks before female parent) while maintaining optimal sugar levels (13.5-16.5 Brix) and storage characteristics through controlled modification of these physiological parameters.
Solution Approach 2:
The patent creates a composite genetic structure by cross-pollinating two distinct apple varieties ('Honeycrisp' as female parent and an unnamed male parent). This combines desirable traits from both parents including early maturity from one parent with high sugar content, good fruit pressure, and storage life from the other, resulting in a hybrid variety that exhibits superior overall performance.
2Reliability
If apple trees are bred for higher sugar levels, then fruit quality is improved, but acid content and storage characteristics may deteriorate
Solution Approach 1:
The patent employs parameter changes by precisely controlling and selecting for multiple pomological parameters simultaneously. The 'R10-45' variety maintains optimal balance with soluble solids of 13.5-16.5 Brix and pH of 3.25-3.75, achieving high sugar content while preserving adequate acid levels for flavor balance and storage stability.
3Reliability
If apple trees are bred for higher fruit pressure, then fruit quality is improved, but susceptibility to physiological disorders may increase
Solution Approach 1:
The patent applies parameter changes by selectively breeding for optimal fruit pressure ranges (16-20 lbs) while simultaneously selecting for resistance to physiological disorders such as bitter pit. The 'R10-45' variety achieves this balance through controlled modification of cell structure and turgor pressure parameters.
4Productivity
If apple trees are bred for earlier maturity, then commercial viability is improved, but consistency of pomological characteristics may deteriorate
Solution Approach 1:
The patent employs feedback mechanisms through multi-year field trials and systematic evaluation of pomological characteristics. The variety was tested across multiple seasons (2009-2014) with continuous monitoring of maturity date, sugar content, acid content, fruit pressure, and storage performance. This feedback loop ensured selection of trees with stable, consistent characteristics that reliably express the desired traits.
Solution Approach 2:
The patent applies self-service through true-to-type asexual reproduction via budding. The selected superior trees were propagated clonally to ensure that the optimized pomological characteristics (early maturity, high sugar, good acid balance, adequate fruit pressure, and disorder resistance) are consistently reproduced in subsequent generations without genetic variation.
Data Source
AI summary
A new and distinct variety of apple tree is described and which is characterized as to novelty by producing a flavorful apple which is mature for harvesting and shipment about October 4th under the ecological conditions prevailing in Quincy, Wash.