Shelford Potato Cultivar Breeding for High Solids and Disease Resistance
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Solution Overview
Problem
The potato industry faces challenges such as declining acreage, disease susceptibility, and low yields, particularly due to issues like the golden nematode, and the need for potato varieties with high solids content and adaptability to various growing conditions, which are not adequately addressed by current breeding techniques.
Innovation Solution
Development of the 'Shelford' potato cultivar, which is bred for high solids content, disease resistance, and adaptability through selective crossbreeding and genetic engineering, enabling improved processability, nutritional quality, and resistance to pests and diseases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional breeding techniques are used to develop new potato varieties, then the breeding process can proceed through controlled pollination and selection, but the development time extends to eight years or more from greenhouse to commercial usage
Solution Approach 1:
The patent applies preliminary action by pre-selecting parental clones with desired traits (high solids content, disease resistance) before initiating the breeding program. The parental selection is done in advance with careful evaluation of specific characteristics, allowing the breeding process to start with optimized genetic material rather than beginning from scratch.
Solution Approach 2:
The breeding program is segmented into distinct phases: greenhouse pollination and initial tuber production, first-year field planting and virus testing, second-year density and fry tests, third-year expanded planting and comprehensive testing, and fourth-year multi-state adaptability trials. This segmentation allows parallel processing of different selection criteria at each stage.
2Use of energy by moving object
If potato varieties with high solids content are developed, then energy usage during frying decreases and product quality improves, but achieving high solids content requires extensive breeding programs taking eight years or more
Solution Approach 1:
The patent applies parameter changes by selecting and breeding for specific physiological parameters of the potato tubers, particularly solids content and specific gravity. The breeding program monitors and selects for these quantitative parameters through density measurements and fry tests, systematically improving the energy efficiency parameter of the final product.
Solution Approach 2:
The patent uses tuber propagation to copy the desired high-solids genotype. Once superior genotypes are identified through the multi-year breeding and testing program, they are propagated asexually through tuber multiplication to produce commercial planting stock, efficiently copying the optimized genetic characteristics without repeating the entire breeding process.
3Object-affected harmful factors
If disease resistance is improved through selective breeding, then crop damage from diseases and pests decreases, but the breeding process requires large investments of time, labor, and money over eight years or more
Solution Approach 1:
The patent applies self-service by utilizing natural disease pressure in field trials to evaluate resistance. Rather than creating artificial disease challenges, the breeding program plants selected clones in fields where natural pathogens and pests are present, allowing the plants to demonstrate their resistance characteristics under real-world conditions without complex artificial inoculation systems.
Solution Approach 2:
The breeding program incorporates feedback mechanisms at each stage: virus testing after first-year planting provides feedback on health status, density measurements and fry tests in the second year provide feedback on quality characteristics, and multi-state field trials in the fourth year provide feedback on adaptability. This iterative feedback allows continuous refinement of the selection process.
4Adaptability or versatility
If adaptability to various growing conditions is improved, then the potato variety can be grown in different states and environments, but achieving broad adaptability requires field trials in several states over four years or more
Solution Approach 1:
The patent applies local quality by evaluating the potato clones in multiple geographically distinct locations with different environmental conditions (soil types, climates, disease pressures). The fourth-year stage involves planting surviving selections in several states to assess performance in different local conditions, identifying varieties that maintain quality across diverse environments rather than optimizing for a single location.
Solution Approach 2:
The breeding program seeks to develop potato varieties with universal adaptability that can function across multiple growing regions and be used for various purposes (fresh market, processing, chips). The multi-state field trials evaluate whether the selected clones can serve multiple functions and locations, creating broadly adaptable cultivars rather than location-specific varieties.
Data Source
AI summary
A potato cultivar designated ‘Shelford’ is disclosed. The invention relates to the tubers of potato cultivar ‘Shelford’, to the seeds of potato cultivar ‘Shelford’, to the plants of potato ‘Shelford’, to the plant parts of potato cultivar ‘Shelford’ and to methods for producing a potato plant produced by crossing potato cultivar ‘Shelford’ with itself or with another potato variety. The invention also relates to methods for producing a potato plant containing in its genetic material one or more transgenes and to the transgenic potato plants and plant parts produced by those methods. This invention also relates to potato cultivars or breeding cultivars and plant parts derived from potato variety ‘Shelford’, to methods for producing other potato cultivars, lines or plant parts derived from potato cultivar ‘Shelford’ and to the potato plants, varieties, and their parts derived from use of those methods. The invention further relates to hybrid potato tubers, seeds, plants and plant parts produced by crossing potato cultivar ‘Shelford’ with another potato cultivar.