Maize Hybrid X08V924 Trait Integration for Uniform Mechanical Harvesting
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Solution Overview
Problem
Existing hybrid maize development methods struggle to combine desirable traits such as disease resistance, heat and drought tolerance, and improved yield while maintaining uniformity and stability in commercial crops, particularly in the context of mechanical harvesting.
Innovation Solution
A novel maize hybrid variety X08V924 is developed by crossing inbred varieties and introducing genetic loci for traits like male sterility, disease resistance, and altered metabolism through backcrossing and transformation, with cytoplasmically-inherited traits ensuring trait inheritance and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional plant breeding is used to combine desirable traits, then resistance to diseases and insects, heat and drought resistance, and yield improvement can be achieved, but uniformity of plant characteristics such as germination, stand establishment, growth rate, maturity, and plant and ear height becomes compromised
Solution Approach 1:
The patent segments the plant breeding process into distinct stages: developing inbred lines with specific traits, then crossing them to create hybrids. This segmentation allows each stage to be optimized independently - inbred lines are developed for specific resistance traits while maintaining uniformity, and then combined to achieve both resistance and uniformity in the hybrid.
Solution Approach 2:
The patent utilizes parameter changes in the breeding process, specifically changing from self-pollinating inbred lines to cross-pollinating hybrids. This parameter change (pollination method) enables the combination of uniform inbred lines to produce uniform hybrids that exhibit heterosis, thereby achieving both trait combination and uniformity.
2Productivity
If mechanical harvesting is implemented, then productivity and efficiency are improved, but uniformity of plant characteristics such as maturity and plant height becomes critical
Solution Approach 1:
The patent applies preliminary action by developing inbred lines with uniform plant characteristics before creating the hybrid. This preliminary uniformity in the parent lines ensures that the resulting hybrids will have consistent maturity and height, which is critical for mechanical harvesting efficiency.
Solution Approach 2:
The patent creates dynamic heterosis effects through hybridization, where the cross between inbred lines produces a hybrid with superior and more uniform characteristics than either parent. This dynamic effect enhances uniformity of maturity and plant height, making the crop suitable for mechanical harvesting.
3Reliability
If multiple desirable traits are combined in a single hybrid, then agricultural performance is improved, but the complexity of breeding and trait integration increases
Solution Approach 1:
The patent segments the trait integration process by developing inbred lines that each carry specific desirable traits (disease resistance, heat tolerance, drought resistance) before crossing them. This segmentation simplifies the breeding process by allowing each inbred line to be optimized for specific traits independently, reducing the overall complexity of combining multiple traits.
Solution Approach 2:
The patent merges multiple desirable traits from different inbred lines into a single hybrid through cross-pollination. This merging approach allows the combination of disease resistance, heat tolerance, and drought resistance in one hybrid, achieving superior agricultural performance while managing breeding complexity through systematic integration.
Data Source
AI summary
A novel maize variety designated X08V924 and seed, plants and plant parts thereof are produced by crossing inbred maize varieties. Methods for producing a maize plant by crossing hybrid maize variety X08V924 with another maize plant are disclosed.Methods for producing a maize plant containing in its genetic material one or more traits introgressed into X08V924 through backcrossing or genetic transformation, and to the maize seed, plant and plant part produced thereby are described. Maize variety X08V924, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of maize variety X08V924 are provided. Methods for producing maize varieties derived from maize variety X08V924 and methods of using maize variety X08V924 are disclosed.