PH3261MR Sorghum Inbred Line for Disease, Drought, and Yield

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Solution Overview

Problem

Existing sorghum varieties lack a combination of desirable traits such as disease resistance, drought tolerance, and high yield, making them less effective in challenging agricultural conditions.

Innovation Solution

Development of the sorghum line PH3261MR, which incorporates multiple desirable traits through backcross conversion and genetic transformation, enhancing resistance to diseases, insects, and improving yield and drought tolerance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If traditional plant breeding through inbred varieties is used, then uniformity of plant characteristics is improved, but the combination of multiple desirable traits (disease resistance, drought tolerance, high yield) is limited

Engineering Contradiction:
Improveuniformity of plant characteristicsVSAvoidcombination of desirable traits
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The patent combines multiple desirable traits (disease resistance, drought tolerance, high yield) into a single sorghum inbred line PH3261MR through systematic breeding programs that cross and select for multiple traits simultaneously, resolving the contradiction between trait combination and uniformity

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The inbred line PH3261MR is developed as a universal parent line that can be crossed with various other lines to produce hybrids with different combinations of traits, making it adaptable to multiple agricultural conditions while maintaining uniformity of its own characteristics

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of manufacture

If existing sorghum varieties are used, then ease of cultivation is maintained, but resistance to diseases and insects and drought tolerance are insufficient

Engineering Contradiction:
Improveease of cultivationVSAvoidresistance to diseases, insects, and drought
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The inbred line PH3261MR is pre-developed with built-in resistance to diseases, insects, and drought through multiple generations of selection and backcrossing, so that farmers can plant it directly without additional interventions, maintaining ease of cultivation while improving reliability

Inventive Principle:
Principle #10Preliminary action

3Productivity

If existing sorghum varieties are used, then current yield levels are achieved, but yield potential and performance under adverse conditions are limited

Engineering Contradiction:
ImproveyieldVSAvoidperformance under adverse conditions
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent changes the genetic parameters of the sorghum line by introducing and selecting for multiple disease resistance genes and drought tolerance genes through backcrossing with resistant parent lines, thereby improving both yield potential and performance under adverse conditions

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12414515B1Sorghum inbred PH3261MR
Publication Date: 2025.09.16 PIONEER HI BREED INTERNATIONAL INC

AI summary

A novel sorghum variety designated PH3261MR and seed, plants and plant parts thereof are provided. Methods for producing a plant comprise crossing sorghum variety PH3261 MR with another plant. Sorghum seed, plants and plant parts produced by crossing sorghum variety PH3261 MR with another plant are described. Methods for producing a plant containing in its genetic material one or more traits introgressed into PH3261 MR include one or both of backcross conversion and transformation. Hybrid sorghum seed, plants or plant parts produced by crossing the sorghum variety PH3261 MR or a locus conversion of PH3261 MR with another sorghum variety are disclosed.