Long Stem Lettuce Elevates Harvesting Head
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Solution Overview
Problem
Current lettuce varieties are difficult to harvest due to their low-growing nature, leading to challenges in mechanical and manual harvesting, increased labor stress, and higher risk of contamination from dirt and bottom rot.
Innovation Solution
Development of Long Stem lettuce with a stem length exceeding 3.0 cm, allowing the lettuce head to be elevated off the ground, facilitating easier manual and mechanical harvesting, reducing labor stress, and minimizing contamination risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional low-growing lettuce varieties are used, then the lettuce head remains close to the ground, but harvesting becomes difficult and labor-intensive with increased contamination risk
Solution Approach 1:
The patent applies dimensionality change by extending the stem length in the vertical dimension, elevating the lettuce head from ground level to a height exceeding 3.0 cm. This vertical displacement separates the harvestable head from the contaminated ground environment, enabling easier mechanical and manual harvesting while reducing contact with dirt and bottom rot.
2Productivity
If traditional lettuce varieties with short stems are cultivated, then the plant structure remains compact, but mechanical harvesting becomes inefficient and labor stress increases
Solution Approach 1:
The patent applies parameter changes by modifying the stem length parameter from the traditional short stem configuration to an extended stem configuration exceeding 3.0 cm in length. This parameter modification enables mechanical harvesting systems to access the lettuce head more efficiently, improving productivity while reducing the physical stress and bending required in manual harvesting operations.
Data Source
AI summary
The present invention is directed toward lettuce plants, designated Long Stem lettuce, having a long stern that elevates the lettuce head high up off the ground compared to commercial lettuce varieties, which lends it to be harvested easily by any process, whether manually or mechanically. The invention relates to the seeds, plants, and plant parts of Long Stem lettuce plants and to methods for producing a lettuce plant by crossing Long Stem lettuce with itself or another lettuce cultivar. The invention further relates to methods for producing a lettuce plant containing in its genetic material one or more transgenes and to the transgenic lettuce plants and plant parts produced by those methods. This invention also relates to lettuce cultivars or breeding cultivars and plant parts derived from Long Stem lettuce, to methods for producing other lettuce cultivars, lines or plant parts derived from Long Stem lettuce and to the lettuce plants, varieties, and their parts derived from the use of those methods.