Fall Fiesta Interspecific Prunus Tree Fruit Quality
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Solution Overview
Problem
Existing plum and interspecific tree varieties face challenges in fruit size, flesh firmness, maturity timing, and eating quality, with limited options for trees that are both productive and have good storage and shipping qualities.
Innovation Solution
The development of the 'Fall Fiesta' interspecific tree, resulting from crosses between Prunus salicina, Prunus avium, and Prunus persica, which exhibits larger fruit size, firmer flesh, and improved eating quality, with a combination of asexual reproduction using the 'Nemaguard' Rootstock for consistent propagation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If existing plum and interspecific tree varieties are used, then fruit production is achieved, but fruit size, flesh firmness, and eating quality are limited
Solution Approach 1:
The patent combines multiple Prunus species (Prunus salicina, Prunus avium, and Prunus persica) through interspecific hybridization to create a new variety that merges the desirable traits of each parent species, achieving both larger fruit size and firmer flesh that neither parent variety could provide alone
Solution Approach 2:
The new interspecific variety represents a composite genetic material combining DNA from three different Prunus species, creating a hybrid genotype that expresses superior fruit characteristics including increased size and improved flesh firmness compared to purebred parent varieties
2Loss of time
If early maturity varieties are selected, then fruit production timing is advanced, but storage and shipping quality deteriorates
Solution Approach 1:
The patent alters the genetic parameters of the parent varieties through controlled hybridization, shifting the maturity timeline and flesh firmness parameters in the offspring to achieve a later maturity date with improved storage quality, effectively changing the temporal and quality parameters simultaneously
3Stability of the object's composition
If asexual reproduction is used for propagation, then genetic consistency is maintained, but propagation complexity increases
Solution Approach 1:
The patent employs asexual reproduction methods such as budding and grafting to create exact genetic copies of the new interspecific variety, ensuring that each propagated tree is an identical clone of the original selected plant, thereby maintaining complete genetic consistency across the population
Data Source
AI summary
A new and distinct variety of interspecific Prunus tree. 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. Vigorous, upright tree growth.2. Heavy and regular bearer of fruit.3. Fruit with an attractive, blue black skin color.4. Fruit with very good flavor and eating quality.5. Fruit with good handling and shipping quality.6. Fruit with an average Brix of 20° and a good balance between acid and sugar.