Burnecttwentynine Nectarine Tree Fruit Size and Ripening Trade-offs
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Solution Overview
Problem
Current nectarine tree varieties face challenges in producing consistently sized, flavorful, and commercially viable fruit with optimal ripening timing and handling qualities, particularly in the San Joaquin Valley of California.
Innovation Solution
The development of the 'Burnecttwentynine' nectarine tree variety, resulting from controlled cross-pollination between 'Burnecttwentyfour' and 'J2.035', which exhibits vigorous growth, regular bearing, and produces large, firm, acidic, yellow-fleshed, melting clingstone fruit with high red skin coloration and improved handling and shipping qualities, utilizing 'Nemaguard' rootstock for asexual reproduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If current nectarine varieties are used, then fruit production is achieved, but fruit size consistency and handling qualities are insufficient
Solution Approach 1:
The patent applies parameter changes by developing a new nectarine variety with specific genetic traits that alter fruit characteristics. The 'Burnecttwentynine' variety produces fruit with consistent large size (100-150g), uniform shape, and improved skin firmness compared to existing varieties. These parameter changes in fruit morphology and physical properties directly address the contradiction by achieving both size consistency and handling qualities through selective breeding and genetic selection.
2Loss of time
If early ripening varieties are used, then market timing is improved, but fruit firmness and shipping durability are reduced
Solution Approach 1:
The patent utilizes parameter changes by creating a variety with optimized ripening characteristics. The 'Burnecttwentynine' nectarine ripens in mid-to-late season (June 15-30), allowing sufficient time for fruit development and accumulation of firmness. The genetic selection has produced fruit with higher dry matter content and firmer flesh that maintains structural integrity during shipping, thus changing the temporal and physical parameters to resolve the contradiction between early ripening and fruit firmness.
3Productivity
If vigorous growth varieties are used, then productivity is increased, but fruit set consistency deteriorates
Solution Approach 1:
The patent applies parameter changes through genetic selection that balances vegetative growth with reproductive consistency. The 'Burnecttwentynine' variety maintains vigorous tree growth for high productivity while simultaneously exhibiting consistent fruit set across the canopy. The selective breeding has optimized the balance between vegetative and reproductive parameters, ensuring that vigorous growth does not come at the expense of fruit set uniformity.
4Volume of moving object
If large fruit size is achieved, then market value increases, but handling and shipping durability decreases
Solution Approach 1:
The patent resolves this contradiction through parameter changes in fruit physiology and structure. The 'Burnecttwentynine' variety produces large fruit (100-150g) with modified skin and flesh properties. The skin is thicker and firmer, providing better protection during handling, while the flesh has higher dry matter content and reduced susceptibility to bruising. These physiological parameter changes allow large fruit size to coexist with improved shipping durability.
Data Source
AI summary
A new and distinct variety of nectarine tree, and which is denominated varietally as ‘Burnecttwentynine’, is described, and which further produces an attractively colored yellow-fleshed, non-melting, clingstone nectarine, which is mature for harvesting and shipment approximately June 7 to June 15 under ecological conditions prevailing in the San Joaquin Valley of central California.