Maize Inbred PH1MJ9 Breeding for Disease Resistance and Yield
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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 yield improvement.
Innovation Solution
Development of a novel maize variety, PH1MJ9, through a breeding process that involves crossing inbred lines, selfing, and ear-to-row selection to create a substantially homozygous line that can be used to produce hybrid seeds with improved traits, and further enhancement through locus conversion and transformation to introduce specific desired traits.
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 achieve uniformity increases
Solution Approach 1:
The patent applies preliminary action by developing and maintaining a pre-characterized inbred maize line (PH1MJ9) with known desirable traits including disease resistance and uniformity. This pre-developed inbred line serves as a ready-to-use genetic foundation that eliminates the need for time-consuming traditional breeding to create new varieties, as farmers can directly plant the hybrid seeds containing these pre-selected traits
2Reliability
If traditional plant breeding is used to combine desirable traits, then drought tolerance can be improved, but the time required to develop new varieties and achieve uniformity increases
Solution Approach 1:
The patent applies preliminary action by developing and maintaining a pre-characterized inbred maize line (PH1MJ9) with known desirable traits including drought tolerance and uniformity. This pre-developed inbred line serves as a ready-to-use genetic foundation that eliminates the need for time-consuming traditional breeding to create new varieties, as farmers can directly plant the hybrid seeds containing these pre-selected traits
3Manufacturing precision
If traditional plant breeding is used to achieve uniformity, then germination and stand establishment can be improved, but the time required to develop new varieties increases
Solution Approach 1:
The patent applies preliminary action by developing and maintaining a pre-characterized inbred maize line (PH1MJ9) with known desirable traits including uniformity. This pre-developed inbred line serves as a ready-to-use genetic foundation that eliminates the need for time-consuming traditional breeding to create new varieties, as farmers can directly plant the hybrid seeds containing these pre-selected uniform traits
Data Source
AI summary
A novel maize variety designated PH1MJ9 and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing maize variety PH1MJ9 with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH1MJ9 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 PH1MJ9 or a locus conversion of PH1MJ9 with another maize variety.