Maize Variety 36V52 Breeding for Yield and Uniformity
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Solution Overview
Problem
Current maize breeding techniques face challenges in combining desirable traits such as disease resistance, drought tolerance, and high yield while maintaining uniformity and stability, especially under varying environmental conditions.
Innovation Solution
The development of the maize variety 36V52, produced by crossing two proprietary Pioneer Hi-Bred International inbred varieties, which incorporates traits like drought resistance, disease resistance, and high yield through backcross conversion and transformation processes, allowing for the introgression of new traits and the creation of derived varieties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional plant breeding techniques are used to combine desirable traits, then disease resistance and drought tolerance can be achieved, but uniformity and stability of plant characteristics are compromised
Solution Approach 1:
The patent divides the breeding process into distinct generations (P1, P2, F1, F2, F3, F4) with specific selection criteria for each stage. This segmented approach allows systematic combination of disease resistance and drought tolerance traits while maintaining uniformity through controlled crossing and selection at each generation level.
Solution Approach 2:
The patent performs preliminary selection of parent lines with specific desirable traits before crossing. Parent varieties are pre-screened for disease resistance, drought tolerance, and other agronomic qualities, ensuring that the F1 generation inherits these traits in a uniform and stable manner.
2Productivity
If multiple desirable traits are combined in a single hybrid, then yield and resistance improve, but plant uniformity deteriorates
Solution Approach 1:
The patent merges multiple desirable traits from different parent varieties into a single F1 hybrid. By selecting parents with complementary traits (disease resistance, drought tolerance, yield potential) and crossing them, the F1 generation exhibits all desired traits simultaneously while maintaining uniformity through heterosis.
Solution Approach 2:
The patent assigns different local qualities to parent lines, where P1 contributes specific resistance traits and P2 contributes yield and adaptability traits. This localized trait assignment allows the F1 hybrid to express multiple desirable characteristics uniformly across the population.
3Adaptability or versatility
If backcross conversion and transformation processes are used to introgress new traits, then trait diversity increases, but breeding complexity increases
Solution Approach 1:
The patent employs dynamic breeding strategies where the approach changes based on the generation and selection goals. Early generations use controlled crossing to establish trait combinations, while later generations apply backcrossing and transformation techniques selectively to introgress specific traits, managing complexity through adaptive process design.
Solution Approach 2:
The patent performs preliminary assessment of trait inheritance patterns and parental compatibility before initiating backcross conversion or transformation processes. This preliminary action identifies the most efficient breeding pathway, reducing overall process complexity while achieving desired trait diversity.
Data Source
AI summary
A novel maize variety designated 36V52 and seed, plants and plant parts thereof, produced by crossing Pioneer Hi-Bred International, Inc. proprietary inbred maize varieties. Methods for producing a maize plant that comprises crossing maize variety 36V52 with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into 36V52 through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby. This invention relates to the maize variety 36V52, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of maize variety 36V52. This invention further relates to methods for producing maize varieties derived from maize variety 36V52 and to the maize varieties derived by the use of those methods.