Raspberry Plant PS-08.019-25 Green Spine Trait Breeding
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Solution Overview
Problem
There is a need for a new raspberry variety that can thrive in the central coast of California's climate and growing conditions, producing high yields of light to medium red fruit with unique characteristics such as green spines, fair flavor, and specific traits that differentiate it from existing varieties like 'GRANDEUR' and its parents 'PS-1764' and '04.3890'.
Innovation Solution
The development of the raspberry variety 'PS-08.019-25', which is a result of a controlled cross between 'PS-1764' and '04.3890', exhibiting traits like green spines, high fruit yield, light to medium red fruit color, absent to weak primocane glaucosity, and fair flavor, adapted to the central coast of California's climate, and extensively tested for stability through asexual reproduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a controlled cross between 'PS-1764' and '04.3890' is performed to develop new traits, then unique characteristics such as green spines and fair flavor are achieved, but the breeding process time and complexity increase
Solution Approach 1:
The patent performs a controlled cross between specific parent varieties 'PS-1764' and '04.3890' to pre-establish the desired genetic combination before field testing. This preliminary breeding action consolidates the unique characteristics (green spines, fair flavor) into a fixed genetic lineage, reducing the time needed for subsequent selection and propagation steps.
2Reliability
If extensive field testing over several years is conducted to ensure trait stability, then reliability of the variety is improved, but the time required for variety development increases
Solution Approach 1:
The patent implements extensive field testing over several years across multiple locations (Santa Cruz County, San Joaquin County, Siskiyou County) to monitor and verify the stability of unique traits. This feedback mechanism ensures that characteristics like green spines and fair flavor remain consistent through successive generations, providing reliable data on variety performance and trait heritability.
3Manufacturing precision
If asexual propagation methods are used to maintain trait consistency, then manufacturing precision of the variety is improved, but the complexity of propagation procedures increases
Solution Approach 1:
The patent employs asexual propagation methods including dormant canes, roots, and non-dormant root shoot cuttings to create genetically identical copies of the selected plant. This copying process ensures that the unique characteristics (green spines, fair flavor, high fruit yield) are precisely replicated across all propagated plants, maintaining trait consistency without the genetic variation that would occur with sexual reproduction.
Data Source
AI summary
This invention relates to a new and distinct everbearing variety of raspberry plant named ‘PS-08.019-25’. The new variety is primarily adapted to the growing conditions of the central coast of California and is characterized by the following: mid-season primocane production with medium sized fruit of light-red coloration. Fruit is of consistent conic shape, releases very easily from receptacle and is of fair flavor. Foliage is slightly concave to strongly convex, medium green; possessing strong rugosity and always 3 foliate. Primocanes have an absent or very weak waxy coat, green spines, and sparse thorn density and have absent to very weak anthocyanin coloration.