Actinidia chinensis E11 Cultivar Breeding for Oblate Fruit and Early Harvest
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Solution Overview
Problem
There is a need for a new cultivar of Actinidia chinensis that exhibits distinct characteristics such as oblate fruit shape, heavy fruit weight, early season harvest, and unique coloration, which are not met by existing varieties like 'Hayward' and 'Hort16A', and differs significantly from its seed and pollen parents.
Innovation Solution
The cultivar 'E11' is developed through a breeding program, characterized by its oblate fruit shape, heavy weight, pale yellow color, weak stylar end, and soft pubescence, with successful asexual propagation and grafting onto A. deliciosa rootstocks, demonstrating stability across varying environmental conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If traditional Actinidia chinensis varieties like 'Hayward' and 'Hort16A' are used, then established cultivation methods can be applied, but the fruit shape, weight, and harvest timing cannot be improved
Solution Approach 1:
The patent applies parameter changes by selecting and breeding plants with specific genetic parameters that produce oblate fruit shape, heavy weight, and early season harvest. The cultivar 'E11' exhibits these altered parameters compared to traditional varieties, achieving distinct fruit morphology and harvest timing through genetic selection.
2Weight of moving object
If existing varieties are cultivated, then proven reliability is maintained, but fruit weight and size cannot be increased
Solution Approach 1:
The patent changes the weight parameter of the fruit by breeding cultivar 'E11' which produces significantly heavier fruit compared to traditional varieties. The heavy fruit weight is achieved through selective breeding while maintaining diploid genetics and stable inheritance of the trait.
3Loss of time
If mid-season harvest varieties are grown, then market timing is traditional, but early season market opportunity is lost
Solution Approach 1:
The patent applies preliminary action by inducing early bud break and early flowering through selective breeding, which leads to early season fruit set and harvest. The cultivar 'E11' exhibits early phenological development that enables earlier harvest timing compared to traditional mid-season varieties.
4Shape
If varieties with strong stylar protrusion are selected, then fruit structure is traditional, but unique market differentiation is lost
Solution Approach 1:
The patent applies asymmetry by selecting for a blunt, weakly protruding stylar end that creates a distinct oblate fruit shape. This asymmetric modification of the stylar region provides unique market differentiation while maintaining overall fruit integrity and edibility.
Data Source
AI summary
A new and distinct Actinidia chinensis cultivar named ‘E11’ is disclosed, characterized by having distinctive pale yellow flesh fruit, and a mid seasonal harvest time. Additionally, the new variety produces heavy, oblate fruit with weak skin adherence to flesh and with a distinctive blunt, weakly protruding stylar end shape. The new variety is suitable for commercial production of kiwi fruit.