Grenada Strawberry Cultivar Breeding for Yield and Quality
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Solution Overview
Problem
Current strawberry cultivars, such as 'Camarosa', 'Ventana', and 'Benicia', have limitations in productivity, fruit quality, and timing of fruit initiation, with 'Grenada' aiming to address these by offering greater productivity, higher quality fruit, and earlier production.
Innovation Solution
The 'Grenada' strawberry cultivar, resulting from a cross between Cal 4.41-6 and Cal 5.109-2, exhibits enhanced productivity, larger fruit size, and higher quality fruit, with characteristics like darker, firmer, and more uniformly conical fruit, and slightly earlier fruiting compared to its parents, making it suitable for both winter and summer plantings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If current strawberry cultivars like 'Camarosa' are used, then they have moderate productivity and fruit quality, but they cannot achieve greater productivity and higher quality fruit simultaneously
Solution Approach 1:
The patent combines the desirable traits of two parent cultivars through controlled crossing: Cal 4.41-6 contributes very high seasonal productivity and high quality fruit, while Cal 5.109-2 contributes very high early productivity and large flavorful fruit. The resulting 'Grenada' cultivar merges these attributes to achieve both high productivity and consistent fruit quality
Solution Approach 2:
The patent achieves improved productivity and fruit quality by changing the genetic parameters through selective breeding. The cross between specific parent accessions with complementary traits produces offspring with optimized parameters for both yield quantity and fruit quality consistency
2Volume of moving object
If current strawberry cultivars are used, then they have certain fruit size, but they cannot achieve larger fruit size with earlier production timing
Solution Approach 1:
The patent achieves earlier fruit production by inheriting the early productivity trait from parent Cal 5.109-2. The 'Grenada' cultivar is programmed through its genetics to initiate fruiting earlier in the season, allowing producers to access the market before competitors using later-maturing cultivars
Solution Approach 2:
The patent combines the large fruit size trait from Cal 5.109-2 with the early productivity trait from the same parent, while also incorporating the high seasonal productivity from Cal 4.41-6, achieving a combination of large fruit, early production, and high overall yield
3Area of stationary object
If current strawberry cultivars are used, then they have certain plant size, but they cannot achieve larger plant size with higher quality fruit simultaneously
Solution Approach 1:
The patent merges the large plant size characteristic with high quality fruit production through the controlled cross. The resulting 'Grenada' cultivar exhibits both larger plant architecture and superior fruit quality traits, allowing for both aesthetic appeal and marketable fruit
Data Source
AI summary
‘Grenada’ is a short-day (June bearing) cultivar similar to ‘Camarosa’ (U.S. Plant Pat. No. 8,708), but with greater productivity, higher quality fruit, and earlier production; it is similar to ‘Ventana’ (U.S. Plant Pat. No. 13,469) and ‘Benicia’ (U.S. Plant Pat. No. 22,542), but with somewhat earlier production, a larger plant, larger fruit size, and higher quality fruit.