Carmanda Lettuce Variety Yield Stability and Stress Tolerance

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Solution Overview

Problem

There is a need for new lettuce varieties that are stable, high yielding, and agronomically sound to meet the increasing global demand for lettuce.

Innovation Solution

The development of the new lettuce variety 'Carmanda' (Lactuca sativa) with specific physiological and morphological characteristics, including resistance to various pests and diseases, tolerance to environmental stresses, and improved agronomic traits.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional lettuce varieties are used, then existing market supply is maintained, but yield stability and agronomic performance are insufficient to meet increasing global demand

Engineering Contradiction:

Improveyield stabilityVSAvoidagronomic soundness

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent applies parameter changes by selecting and stabilizing specific physiological and morphological characteristics of the lettuce plant, such as head weight, leaf color, plant height, and maturity time. These parameters are optimized through controlled breeding to achieve both high yield stability and agronomic reliability simultaneously

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent uses copying by creating a standardized variety 'Carmanda' that replicates desirable traits through controlled pollination and selection. The variety is reproduced consistently across multiple generations to maintain stable yield and reliable agronomic performance

Inventive Principle:

Principle #26Copying

2Productivity

If new lettuce varieties are developed, then yield stability is improved, but resistance to pests and diseases may be compromised

Engineering Contradiction:

Improveyield stabilityVSAvoidpest and disease resistance

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent merges (combines) multiple desirable traits including yield stability, pest resistance, and disease resistance into a single integrated variety. The 'Carmanda' lettuce combines high yield potential with resistance to key pests and diseases through careful selection and breeding programs

Inventive Principle:

Principle #5Merging (Combining)

3Productivity

If lettuce varieties are bred for high yield, then productivity increases, but tolerance to environmental stresses may decrease

Engineering Contradiction:

ImproveyieldVSAvoidenvironmental stress tolerance

Core Design Contradiction:

ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent applies universality by developing a variety that performs multiple functions: it produces high yield while simultaneously tolerating various environmental stresses such as heat, cold, and drought. The 'Carmanda' lettuce is adapted to perform well across different environmental conditions, making it universally suitable for commercial production

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250169415A1Lettuce variety ‘carmanda’

Publication Date: 2025.05.29 ENZA ZADEN BEHEER BV

AI summary

New lettuce variety designated ‘Carmanda’ is described. ‘Carmanda’ is a lettuce variety exhibiting stability and uniformity.