Spineless Raspberry Cultivar Glen Mor Resists Root Rot
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Solution Overview
Problem
Existing raspberry cultivars face challenges in achieving high fruit quality, improved agronomic traits, and increased tolerance to pathogens, particularly susceptibility to Phytophthora root rot and spiny canes, which affect fruit production and durability.
Innovation Solution
The development of a new raspberry cultivar 'Glen Mor' with spineless canes, resistance to Phytophthora root rot, early summer fruit production on floricanes, and tip fruit in autumn on primocanes, resulting from a controlled breeding program combining traits from proprietary and 'Autumn Treasure' parents, utilizing asexual propagation by root cuttings and tissue culture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing raspberry cultivars are grown for fruit production, then fruit quality can be achieved, but susceptibility to Phytophthora root rot and spiny canes reduce durability and yield
Solution Approach 1:
The patent applies parameter changes by developing a new cultivar with fundamentally different genetic parameters regarding disease resistance. The breeding program selected for resistance to Phytophthora root rot, creating a cultivar with altered susceptibility parameters compared to existing cultivars. This is achieved through controlled breeding between selected parent plants, resulting in 'Glen Mor' having inherent resistance where previous cultivars had susceptibility.
2Ease of operation
If existing raspberry cultivars produce fruit, then fruit quality is achieved, but spiny canes affect ease of operation and durability
Solution Approach 1:
The patent applies the extraction principle by completely removing the harmful spines from the cane structure. The breeding program specifically selected for spineless characteristics, extracting the harmful thorny elements from the plant while retaining the desirable fruit production traits. The result is a cultivar with smooth, spineless canes that eliminate the operational difficulties and safety hazards associated with spiny varieties.
3Duration of action of moving object
If raspberry cultivars produce fruit seasonally, then fruit quality is achieved, but extended fruit season requires improved agronomic traits
Solution Approach 1:
The patent applies dynamics by creating a cultivar with flexible and adaptive fruiting behavior that responds to environmental conditions. 'Glen Mor' exhibits dynamic fruit production patterns, producing fruit in summer on floricanes and potentially again in autumn on primocanes under suitable conditions. This dynamic fruiting capability extends the effective fruit season while maintaining high productivity, as the plant can utilize both floricane and primocane fruiting pathways depending on seasonal conditions.
Data Source
AI summary
A new cultivar of Rubus plant named ‘Glen Mor’ that is characterized by its spineless canes, its resistance to Phytophthora root rot, its pink petioles on actively growing vegetative canes, its early summer fruit production on floricanes, its early summer fruit production on floricanes, its late fruit laterals low on the floricane during the summer allowing a longer fruit season, and its tip fruit in autumn on the top 6 to 10 buds on the primocane.