Corn Variety CV875318 Breeding for Uniformity and Stability
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Solution Overview
Problem
Corn breeding aims to combine desirable traits like enhanced yield, disease resistance, and uniformity, but existing methods face challenges in developing stable inbred plants with predictable performance, especially in achieving uniformity and stability across generations.
Innovation Solution
The development of corn variety CV875318, which involves self-pollination and backcrossing to introduce desired traits, ensuring uniformity and stability through careful selection and genetic conversion, with the option to introduce additional heritable traits like male sterility or disease resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If self-pollination and backcrossing are used to develop inbred plants, then uniformity and stability of desirable traits are improved, but the time required to develop commercial hybrids increases
Solution Approach 1:
The patent applies preliminary action by developing and stabilizing inbred parental lines (such as CV875318) in advance through multiple generations of self-pollination and selection. This preliminary development ensures that when hybrids are eventually produced by crossing these stabilized inbreds, they immediately exhibit uniformity and stability of desirable traits without requiring additional generations of testing and stabilization, thus resolving the time contradiction.
2Adaptability or versatility
If multiple desirable traits are combined in a single variety through breeding, then the commercial potential and agronomic performance are improved, but the complexity of the breeding program increases
Solution Approach 1:
The patent applies merging by combining multiple desirable traits (yield, disease resistance, uniformity, germination characteristics) into standardized inbred parental lines through systematic breeding programs. By merging these traits into pre-developed inbreds like CV875318, the complexity of combining multiple traits is reduced to a simple crossing operation, thereby resolving the contradiction between trait combination and program complexity.
3Reliability
If strict selection criteria are applied to ensure uniformity in germination and stand establishment, then the predictability of hybrid performance is improved, but the difficulty of detecting and measuring desired phenotypes increases
Solution Approach 1:
The patent applies feedback by implementing systematic evaluation and selection processes that measure phenotypic characteristics (germination uniformity, stand establishment, growth rate) and use this information to guide further breeding decisions. This feedback loop ensures that only inbred lines meeting strict uniformity criteria are advanced to hybrid production, thereby achieving predictable hybrid performance while making phenotype detection manageable through standardized measurement protocols.
Data Source
AI summary
According to the invention, there is provided seed and plants of the corn variety designated CV875318. The invention thus relates to the plants, seeds and tissue cultures of the variety CV875318, and to methods for producing a corn plant produced by crossing a corn plant of variety CV875318 with itself or with another corn plant, such as a plant of another variety. The invention further relates to corn seeds and plants produced by crossing plants of variety CV875318 with plants of another variety, such as another inbred line. The invention further relates to the inbred and hybrid genetic complements of plants of variety CV875318.