Hybrid Corn Seed Layout for Better Pollen Flow and Yield

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Solution Overview

Problem

The efficiency and productivity of corn seed production are hindered by the limitations in pollen flow and fertilization due to the similar heights of male and female corn plants, leading to reduced yield and increased production costs.

Innovation Solution

The use of shorter female inbred corn plants, typically 2.5% lower in height than male plants, in combination with male plants, enhances pollen flow and reduces tassel skeletonization, allowing for improved pollination and increased seed yield through optimized row arrangements and potentially using air flow devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If male and female corn plants are planted at similar heights, then the planting arrangement is simple and easy to manage, but pollen flow is limited and fertilization efficiency is reduced

Engineering Contradiction:
Improveseed yieldVSAvoidplanting arrangement complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies asymmetry by deliberately creating a height difference between male and female corn plants. Female plants are selected to be at least 2.5% shorter than male plants, which asymmetrical height arrangement facilitates improved pollen flow from male to female plants while maintaining manageable planting arrangements through optimized row configurations.

Inventive Principle:
Principle #4Asymmetry

2Productivity

If taller female plants are used, then the plant structure is more uniform, but pollen distribution to interior plants is insufficient and tassel skeletonization increases

Engineering Contradiction:
Improvepollen distribution efficiencyVSAvoidtassel skeletonization
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent applies parameter changes by modifying the height parameter of female corn plants. By selecting female plants that are at least 2.5% shorter than male plants, the patent optimizes pollen flow dynamics and reduces tassel skeletonization. This parameter adjustment improves pollen distribution efficiency to interior female plants while maintaining overall plant structure integrity.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If female plants are made significantly shorter, then pollen flow improves and tassel skeletonization reduces, but plant height uniformity decreases and harvesting becomes more difficult

Engineering Contradiction:
Improvefertilization efficiencyVSAvoidharvesting ease
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The patent applies partial action by implementing a moderate height difference of at least 2.5% between male and female plants rather than extreme height differences. This partial adjustment is sufficient to improve pollen flow and reduce tassel skeletonization while maintaining adequate height uniformity for practical harvesting operations, avoiding the excessive action that would make harvesting difficult.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS12492408B2Methods for hybrid corn seed production
Publication Date: 2025.12.09 MONSANTO TECHNOLOGY LLC
  • US12492408B2 patent drawing
  • US12492408B2 patent drawing
  • US12492408B2 patent drawing

AI summary

Methods for improving the efficiency and productivity of hybrid corn seed production are provided herein. Various methods to improve the transfer of pollen from male corn plants to female corn plants, and thus increase yield, are provided herein. Without being limiting, these methods include varying the height of male and female corn plants in a field, as well as varying the number, arrangement, and ratio of male-to-female rows in a field.