Spring Bliss Peach Tree Breeding for Early Maturity and Fruit Size

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Solution Overview

Problem

Existing peach tree varieties lack a combination of large size, vigorous growth, regular fruit production, attractive dark red skin color, and optimal maturity timing, as well as good handling and storage quality.

Innovation Solution

The development of a new peach tree variety, 'Spring Bliss', resulting from a cross between proprietary seedling '178LE177' and 'Earlitreat' Peach, exhibiting larger fruit size, earlier maturity, and enhanced red skin color, achieved through asexual reproduction using 'Nemaguard' Rootstock, ensuring consistent fruit characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If existing peach tree varieties are cultivated, then they provide basic fruit production, but they lack a combination of large size, vigorous growth, regular fruit production, attractive dark red skin color, and optimal maturity timing

Engineering Contradiction:
Improvefruit production regularityVSAvoidcombination of desirable traits
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent combines multiple desirable traits from different parent varieties into a single new variety 'Spring Bliss'. The seed parent '178LE177' contributed vigorous growth and regular bearing, while the pollen parent 'Earlitreat' contributed early maturity and red skin color. The resulting variety merges these traits along with large fruit size to create a comprehensive improvement over existing varieties.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The new variety exhibits significant changes in key parameters compared to existing varieties: fruit size is larger, skin color is darker red, maturity is 24 days earlier than the seed parent and 35 days earlier than 'Sugar Time', and growth vigor is enhanced. These parameter changes represent a systematic improvement across multiple dimensions.

Inventive Principle:
Principle #35Parameter changes

2Volume of moving object

If peach varieties with larger fruit size are developed, then market appeal increases, but maturity timing and storage quality may be compromised

Engineering Contradiction:
Improvefruit sizeVSAvoidstorage quality
Core Design Contradiction:
Volume of moving objectVSDuration of action of stationary object

Solution Approach 1:

The patent uses asexual reproduction through budding to create multiple copies of the selected seedling that possess the desired combination of large fruit size and good storage quality. This ensures that the favorable traits are consistently replicated across all propagated trees without genetic variation, maintaining both fruit size and storage performance.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The breeders performed preliminary selection and evaluation of the seedling '178LE177' and its cross with 'Earlitreat' before widespread propagation. They assessed fruit size, skin color, maturity timing, and storage quality in advance, selecting only those trees that met all criteria for commercial deployment.

Inventive Principle:
Principle #10Preliminary action

3Stability of the object's composition

If asexual reproduction is used to propagate the variety, then consistent fruit characteristics are achieved, but the process requires precise technical execution

Engineering Contradiction:
Improvefruit characteristic consistencyVSAvoidpropagation process complexity
Core Design Contradiction:
Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The patent employs budding, a form of asexual reproduction where a bud from the selected scion tree is grafted onto a rootstock. This method allows the plant to self-replicate its genetic material exactly, ensuring that all propagated trees produce identical fruit characteristics. The process leverages the plant's own biological mechanisms for propagation while maintaining genetic fidelity.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUSPP27297P2Peach tree named ‘Spring Bliss’
Publication Date: 2016.10.25 ZEE 6 LLC
  • USPP27297P2 patent drawing

AI summary

A new and distinct variety of peach tree (Prunus persica). The following features of the tree and its fruit are characterized with the tree budded on ‘Nemaguard’ 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 with a vigorous, upright growth habit.2. Regular and productive bearer of large size fruit.3. Fruit with attractive dark red skin color.4. Fruit with very good flavor and eating quality.5. Fruit with good storage and shipping quality.