Interspecific Prunus Tree Ruby Kat Fruit Quality
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Solution Overview
Problem
Existing plum and interspecific tree varieties lack desirable traits such as larger fruit size, earlier maturity, and improved flavor characteristics, as well as consistent and disease-resistant traits.
Innovation Solution
A new interspecific tree variety, resulting from a cross between 'Flavor Jewel' Interspecific and 'Emerald Beaut' Plum, exhibiting larger, red-fleshed fruit with improved flavor and maturity, and asexually reproduced using 'Nemaguard' Rootstock, ensuring consistent fruit characteristics and disease resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If existing plum and interspecific tree varieties are used, then they have established fruit production, but they lack desirable traits such as larger fruit size, earlier maturity, and improved flavor characteristics
Solution Approach 1:
The patent applies parameter changes by creating a new interspecific variety through controlled cross-breeding between 'Flavor Jewel' Intersific and 'Emerald Beaut' Plum. This genetic parameter change results in offspring with improved fruit size (2-3 times larger than seed parents), earlier maturity (25 days earlier than seed parent), and enhanced flavor characteristics including red flesh color and balanced acid-sugar ratio with 18.6° Brix
2Stability of the object's composition
If existing varieties are used, then they have consistent traits, but they lack disease resistance
Solution Approach 1:
The patent applies composite materials principle by grafting the new intersific variety scion onto 'Nemaguard' rootstock. This composite plant structure combines the superior fruit quality and consistency of the new variety with the disease resistance and vigor of the Nemaguard rootstock, which provides resistance to plum root cancer and other soil-borne diseases
3Quantity of substance
If fruit size is increased, then yield is improved, but storage firmness may be compromised
Solution Approach 1:
The patent achieves this balance through parameter changes in the fruit's cellular structure and composition. The new variety produces large fruits (average weight 204.5g, diameter 65.4mm) while maintaining firm flesh texture and good keeping quality with minimal flesh bruising or skin scarring during picking, packing and shipping trials
Data Source
AI summary
A new and distinct variety of interspecific tree. The following features of the tree and its fruit are characterized with the tree budded on ‘Nemagaurd’ 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 vigorous upright growth.2. Heavy and regular production of fruit.3. Fruit with red flesh having very good flavor and eating quality.4. Fruit having a good balance between acid and sugar with an average Brix of 18.6°.5. Fruit with an attractive red skin color.