Maize Inbred PH481R Accelerates Hybrid Development
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Solution Overview
Problem
The development of new maize varieties is a time-consuming process that takes six to twelve years, and there is a continuous need for stable, high-yielding maize varieties with improved traits such as disease resistance, drought tolerance, and better agronomic characteristics.
Innovation Solution
A novel maize variety, PH481R, is developed through careful breeding and selection, incorporating traits like male sterility, disease resistance, and drought tolerance, achieved through backcross conversion, genetic manipulation, and transformation, allowing for the creation of hybrid maize seeds with enhanced characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional maize breeding processes are used to develop new varieties with desirable traits, then the varieties achieve stability and high yielding characteristics, but the development time becomes excessively long (6-12 years)
Solution Approach 1:
The patent applies preliminary action by pre-selecting and characterizing inbred line PH481R with specific desirable traits (disease resistance, drought tolerance, yield potential) before hybrid development. This preliminary characterization and selection of parent lines with complementary traits accelerates the breeding process by 6-12 years through systematic trait identification and validation in advance of hybrid creation and testing
2Adaptability or versatility
If multiple desirable traits are combined in a single maize variety through traditional breeding, then the variety achieves improved agronomic characteristics, but the breeding process becomes increasingly complex and time-consuming
Solution Approach 1:
The patent applies segmentation by dividing the complex trait combination process into distinct phases: (1) development and characterization of individual inbred lines with specific traits (PH481R with disease resistance and drought tolerance), (2) controlled crossing to combine traits in hybrids, and (3) systematic evaluation of hybrid performance. This segmented approach manages breeding complexity by handling trait combination in discrete, manageable steps rather than simultaneously
3Productivity
If maize breeders continue to develop new varieties to meet growing demands for disease resistance and yield improvement, then agricultural productivity increases, but the time required to deliver new varieties to farmers increases
Solution Approach 1:
The patent applies preliminary action by pre-developing and characterizing inbred line PH481R with target traits (disease resistance, drought tolerance, yield potential) before hybrid creation. This advance preparation of parent lines with validated desirable characteristics accelerates the overall variety delivery timeline while maintaining productivity improvements, reducing the 6-12 year development period through systematic preliminary trait selection and validation
Data Source
AI summary
A novel maize variety designated PH481R and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety PH481R with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH481R 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 PH481R or a locus conversion of PH481R with another maize variety.