Maize Inbred PH188P Trait Integration 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 uniformity, which are essential for efficient crop production and mechanical harvesting.
Innovation Solution
Development of a novel maize variety, PH188P, through breeding processes that include selfing, ear-to-row selection, and backcross conversion, which introduces specific traits like drought resistance, disease resistance, and improved agronomic qualities, along with the ability to produce hybrid seeds with enhanced vigor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional plant breeding is used to combine desirable traits, then disease resistance and drought tolerance can be improved, but the time required to develop new varieties and the complexity of the breeding process increase
Solution Approach 1:
The patent applies preliminary action by developing inbred line PH188P with pre-introgressed desirable traits including disease resistance, drought tolerance, and improved agronomic qualities through backcross conversion. This pre-prepared inbred line can be directly used in hybrid combinations, eliminating the need for time-consuming trait combination in later breeding stages and accelerating variety development while maintaining reliable disease and drought resistance
2Reliability
If traditional plant breeding is used to combine desirable traits, then drought tolerance and disease resistance can be achieved, but uniformity of plant characteristics required for mechanical harvesting is compromised
Solution Approach 1:
The patent applies local quality by developing PH188P as a specialized inbred line with concentrated desirable traits including disease resistance, drought tolerance, and specifically improved uniformity of plant characteristics. This localized trait concentration in the inbred line ensures that when crossed with other inbreds, the resulting hybrids exhibit both the desired stress resistance and the uniformity needed for mechanical harvesting, resolving the contradiction between trait diversity and planting uniformity
3Productivity
If complex breeding processes are used to introduce multiple traits, then yield and stress resistance improve, but the complexity of the breeding program and difficulty of implementation increase
Solution Approach 1:
The patent applies merging by consolidating multiple desirable traits including disease resistance, drought tolerance, and improved agronomic qualities into a single integrated inbred line PH188P through backcross conversion. This merging of traits into one parent line simplifies breeding programs, as breeders can directly use PH188P in hybrid combinations without managing complex multi-generational breeding schemes, thereby improving yield while reducing program complexity
Data Source
AI summary
A novel maize variety designated PH188P and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing maize variety PH188P with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH188P through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby. Hybrid maize seed, plant or plant part produced by crossing the variety PH188P or a locus conversion of PH188P with another maize variety.