Irradiation-Mutated Mandarin ODEM for Easy Peeling and Mid-Season Ripening
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Solution Overview
Problem
Current mandarin tree varieties lack a combination of easy peeling, mid-season ripening, high-quality flavor, and distinct fruit characteristics, such as fruit shape and skin color, which are desirable for commercial production.
Innovation Solution
Development of a new mandarin tree variety, 'ODEM', resulting from irradiation-induced mutation breeding, exhibiting easy peeling, mid-season ripening, high-quality flavor, flattened-rounded fruit shape, medium size, and dark orange-red skin color, propagated through grafting onto 'Troyer' citrange, retaining these characteristics through successive generations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional mandarin varieties are used, then they have established ripening seasons and rind characteristics, but they lack the combination of easy peeling, mid-season ripening, and high-quality flavor
Solution Approach 1:
The patent applies parameter changes by inducing mutations through irradiation to alter the genetic parameters of the mandarin tree, resulting in a new variety with modified ripening season (mid-season) and improved peeling characteristics while maintaining high flavor quality
2Shape
If parental varieties 'ORAH' and 'SHANI' are used, then they have established rind characteristics, but they do not exhibit the dark orange-red skin color and flattened-rounded fruit shape of 'ODEM'
Solution Approach 1:
The patent uses irradiation-induced mutation to change the genetic parameters controlling fruit shape and skin color, producing the distinctive flattened-rounded shape and dark orange-red coloration that differentiate 'ODEM' from its parental varieties
3Adaptability or versatility
If irradiation-induced mutation breeding is applied, then new traits are generated, but the stability of characteristics through propagation must be ensured
Solution Approach 1:
The patent applies preliminary action by performing multiple generations of asexual propagation (grafting) before commercial release to ensure that the mutation-induced traits are stably fixed and will be reliably transmitted to all subsequent generations, guaranteeing characteristic stability
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The 'ODEM' variety offers a unique combination of traits that enhance consumer experience with easy peeling and high flavor, making it suitable for fresh consumption, while maintaining stability and consistency in propagation, similar to 'MURCOTT' but with distinct differences from parental varieties.
Implementation Method 1
The new Citrus deliciosa Ten. variety originated from a mutation induced by irradiation, in 1996, of a seedling
Data Source
AI summary
A new and distinct mandarin variety of Citrus deliciosa Ten. named ‘ODEM’, particularly characterized by easy-peeling, mid-season ripening, high quality flavor, flattened-rounded fruit shape at stalk end, medium size fruit and dark orange-red skin color.