Royal Fran Cherry Tree Breeding for Early Maturity and Shipping Quality
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Solution Overview
Problem
Existing cherry tree varieties lack a combination of desirable traits such as early maturity, consistent fruit production, and good handling and shipping qualities, which are essential for commercial success.
Innovation Solution
The development of the 'Royal Fran' cherry tree variety, which is asexually reproduced and budded onto 'Mahaleb' Rootstock, exhibiting vigorous growth, regular fruit production, and improved fruit characteristics like dark red skin color, good flavor, and enhanced handling and shipping qualities, derived from the cross between 'Royal Elaine' and 'Minnie Royal' cherry trees.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing cherry tree varieties are used, then commercial cultivation is possible, but they lack a combination of early maturity, consistent fruit production, and good handling qualities
Solution Approach 1:
The patent combines multiple desirable traits from different parent varieties ('Royal Elaine' and 'Minnie Royal') into a single hybrid variety that exhibits early maturity, consistent fruit production, and good handling qualities simultaneously, resolving the contradiction by merging previously separate beneficial characteristics
2Loss of time
If cherry varieties with early maturity are selected, then market timing is improved, but handling and shipping qualities may be compromised
Solution Approach 1:
The patent changes the genetic parameters of the cherry variety through selective breeding to achieve a new parameter combination where early maturity (10 days earlier than parent '24Z399') coexists with improved handling and shipping qualities, including darker red skin color and better firmness
3Productivity
If vigorous growth varieties are planted, then productivity is increased, but tree size control becomes more difficult
Solution Approach 1:
The patent applies different characteristics to different parts of the tree system: vigorous growth and regular bearing are maintained for productivity, while the tree develops an upright growth habit with a compact form that facilitates easier size management and harvesting operations
Data Source
AI summary
A new and distinct variety of cherry tree. The following features of the tree and its fruit are characterized with the tree budded on ‘Mahaleb’ Rootstock (non-patented), grown on Handford sandy loam soil with Storie Index rating 95, in USDA Hardiness Zone 9, near Modesto, Calif., with standard commercial fruit growing practices, such as pruning, thinning, spraying, irrigation and fertilization. Its novelty consist of the following combination of desirable features:1. Tree having a vigorous, upright growth habit.2. Regular and productive bearer of medium to large size fruit.3. Fruit with an attractive red skin color.4. Fruit with good flavor and eating quality with a good balance between acid and sugar.5. Fruit with firm flesh that has good handling and shipping qualities.