Leanri Tangor Early Maturity and Seedless Fruit Mutation
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Solution Overview
Problem
There is a need for a tangor variety that matures early and produces medium to large, nearly seedless fruit, which is not met by existing varieties like 'Murcott' and 'Clementine×Murcott', as they have different seed counts, maturity dates, fruit sizes, and rind characteristics.
Innovation Solution
The new tangor variety 'Leanri' is developed through asexual reproduction from a branch mutation of a 'Clementine×Murcott' tree, characterized by its early maturation, medium to large fruit size, and low seed count, with specific botanical descriptions detailing its tree and fruit features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If early maturing is selected, then harvest time is reduced, but fruit size may be compromised
Solution Approach 1:
The patent applies parameter changes by selecting and propagating a branch mutation that exhibits altered developmental parameters - specifically, the mutation results in early maturing fruit (harvest date 20 days earlier than parent) while simultaneously achieving large fruit size (110-120g), thus changing the normal parameter relationship between maturity time and fruit size
2Ease of operation
If seedless fruit is selected, then consumer preference is improved, but genetic stability may be compromised
Solution Approach 1:
The patent uses asexual reproduction by budding to create exact genetic copies of the mutant branch. This copying method preserves the low-seed trait (0-3 seeds per fruit) while ensuring genetic stability across generations, as the cloned trees are true-to-type reproductions of the original mutation
3Stability of the object's composition
If asexual reproduction is used, then genetic uniformity is maintained, but variability for selection is reduced
Solution Approach 1:
The patent performs the genetic variation step beforehand through natural branch mutation, then fixes this variation through asexual reproduction. The preliminary mutation creates the desired trait (early maturing, low-seed fruit), and subsequent cloning propagates this pre-selected genotype uniformly, eliminating the need for continued sexual reproduction
Data Source
AI summary
‘Leanri’ is a new and distinct tangor tree notable for its early maturing, medium to large nearly seedless fruit.