Maize Inbred PH4BVY Breeding via Preliminary Action and Segmentation
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Solution Overview
Problem
The development of new maize varieties and hybrids is a time-consuming process, requiring six to twelve years from the first cross to delivering finished seed to farmers, and existing technologies face challenges in creating stable, high-yielding varieties with desirable traits such as disease resistance, drought tolerance, and improved agronomic characteristics.
Innovation Solution
A novel maize variety, PH4BVY, is developed through careful breeding and selection, incorporating traits like male sterility, disease resistance, and drought tolerance via backcross conversion and genetic transformation, allowing for the creation of hybrid seeds with enhanced agronomic characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional breeding methods are used to develop new maize varieties, then stable and high-yielding varieties with desirable traits can be achieved, but the development process takes six to twelve years which is excessively time-consuming
Solution Approach 1:
The patent applies preliminary action by pre-selecting and characterizing inbred lines with specific desirable traits (disease resistance, drought tolerance, yield potential) before initiating the breeding program. The inbred PH4BVY was developed through prior selective breeding and evaluation, allowing it to serve as a ready-to-use parent line that accelerates subsequent hybrid development and reduces overall breeding time while maintaining variety stability
2Adaptability or versatility
If multiple desirable traits are combined in a single maize variety through traditional breeding, then disease resistance, drought tolerance, and yield can be improved, but the complexity of the breeding program increases significantly
Solution Approach 1:
The patent applies segmentation by dividing the breeding program into distinct phases: first developing and characterizing individual inbred lines with specific traits (such as PH4BVY with disease resistance and drought tolerance), then systematically crossing these pre-characterized inbreds to combine traits in hybrid combinations. This segmented approach manages program complexity by handling trait integration in manageable steps rather than attempting to combine multiple traits simultaneously in a single complex cross
3Productivity
If the goal is to maximize yield over different conditions and environments, then agronomic soundness is improved, but the time required to evaluate and select varieties across multiple environments extends the development process
Solution Approach 1:
The patent applies preliminary action by conducting preliminary multi-environment evaluations of the inbred PH4BVY during its development phase to pre-verify its agronomic soundness and yield stability across different conditions. This preliminary characterization allows the inbred to be confidently used as a parent line in subsequent hybrid programs without requiring extensive re-evaluation, thereby reducing the time needed for environmental assessment while ensuring high yield performance across diverse growing conditions
Data Source
AI summary
A novel maize variety designated PH4BVY and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety PH4BVY with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH4BVY through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby are provided. Hybrid maize seed, plants or plant parts are produced by crossing the variety PH4BVY or a locus conversion of PH4BVY with another maize variety.