Lettuce Growler Cultivar Flat Head Shape and TBSV Resistance
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Solution Overview
Problem
There is a need for improved lettuce varieties that exhibit desirable characteristics such as large head size, flat head shape, resistance to Tomato Bushy Stunt Virus (TBSV), and suitable packing in cartons, which current lettuce cultivars do not adequately address.
Innovation Solution
The development of a novel lettuce cultivar designated Growler (LS16591) with specific traits including large head size, flat head shape, short and wide cores, leaves that thin with moderate blistering, and resistance to TBSV, along with methods for producing hybrid and transgenic plants with these characteristics through breeding and genetic transformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If conventional lettuce cultivars are used, then general cultivation is possible, but head size is small and head shape is not flat (unsuitable for carton packing)
Solution Approach 1:
The patent applies parameter changes by developing a novel lettuce cultivar with specific genetic parameters that control head size and shape. The Growler cultivar exhibits a flat head shape (unspherical) and large head size (greater than 2 pounds), which are achieved through selective breeding and genetic modification of morphological parameters rather than conventional cultivars
2Reliability
If conventional lettuce cultivars are used, then cultivation is possible, but resistance to Tomato Bushy Stunt Virus (TBSV) is insufficient
Solution Approach 1:
The patent converts the harmful effect of TBSV susceptibility into benefit by developing the Growler cultivar with engineered resistance to Tomato Bushy Stunt Virus. The cultivar incorporates genetic traits that specifically counteract the virus, transforming the vulnerability into a strength through selective breeding and genetic modification
3Shape
If conventional lettuce cultivars are used, then general production is possible, but leaves do not thin with moderate blistering
Solution Approach 1:
The patent applies local quality by developing specific leaf characteristics in the Growler cultivar, where leaves exhibit moderate blistering and thinning properties in specific regions. This creates a differentiated leaf structure with varying thickness and texture throughout the leaf, achieving the desired local quality variations for market preference
4Productivity
If conventional lettuce cultivars are used, then cultivation is possible, but packing efficiency in cartons is poor
Solution Approach 1:
The patent applies asymmetry by developing a flat head shape (unspherical) in the Growler cultivar that is specifically suited for carton packing. The asymmetric, flattened geometry allows for more efficient arrangement and stacking in rectangular containers, improving packing efficiency compared to traditional spherical head shapes
Data Source
AI summary
The present invention provides novel lettuce cultivar Growler and plant parts, seed, and tissue culture therefrom. The invention also provides methods for producing a lettuce plant by crossing the lettuce plants of the invention with themselves or another lettuce plant. The invention also provides lettuce plants produced from such a crossing as well as plant parts, seed, and tissue culture therefrom.