ZOUK 31 Apple Tree Breeding Disease Resistance
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Solution Overview
Problem
There is a need for new apple tree varieties with improved characteristics such as disease resistance and distinct fruit traits, as existing varieties lack sufficient resistance to diseases like apple scab and have unremarkable fruit aromas and textures.
Innovation Solution
The 'ZOUK 31' apple tree variety, resulting from a controlled pollination cross between 'Rubinstep' and 'Delblush', exhibits moderate disease resistance, unique fruit color, strong aroma, firm texture, and excellent shelf life, propagated using 'M9 T337', 'MM106', and 'MM111' rootstocks, showcasing a combination of desirable traits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing apple tree varieties are used, then cultivation is simple, but disease resistance is insufficient
Solution Approach 1:
The patent uses controlled pollination cross-breeding as an intermediary method to transfer disease resistance traits from parent varieties ('Rubinstep' and 'Delblush') to the new variety 'ZOUK 31'. This systematic breeding approach allows disease resistance to be introduced without completely redesigning the cultivation system.
Solution Approach 2:
The patent changes the genetic parameters of the apple tree by creating a new variety through controlled cross-pollination. The new variety 'ZOUK 31' exhibits modified parameters including disease resistance to apple scab, distinct fruit aroma, and firm texture, while maintaining compatibility with existing cultivation practices.
2Object-generated harmful factors
If existing apple varieties are cultivated, then cultivation methods are established, but fruit aroma and texture are unremarkable
Solution Approach 1:
The patent applies local quality by introducing specific desirable traits (distinct aroma, firm texture) into the new variety 'ZOUK 31' while maintaining other standard apple tree characteristics. The controlled cross-breeding between 'Rubinstep' and 'Delblush' targets specific quality attributes without requiring complete redesign of the fruit's basic properties.
Solution Approach 2:
The new apple variety combines genetic material from two parent varieties ('Rubinstep' and 'Delblush') to create a composite genetic structure that exhibits superior fruit quality characteristics, including distinct aroma and firm texture, that neither parent variety possesses alone.
3Reliability
If new varieties are developed through controlled pollination, then disease resistance and fruit quality improve, but breeding time and complexity increase
Solution Approach 1:
The patent performs preliminary action by conducting controlled pollination cross-breeding between selected parent varieties with known desirable traits. This proactive breeding approach establishes the disease resistance and quality characteristics in the F1 generation, reducing the time required for subsequent selection and stabilization compared to random breeding methods.
Data Source
AI summary
A new and distinctive variety of a Malus domestica apple tree, named ‘ZOUK 31’ that is distinguished by its medium-sized tree with short feathers and a dark green leaf-color that produces yellow fruit having a pink-gold blush, is disclosed.