Pacific Gema Raspberry Cultivar Breeding for Virus Tolerance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing raspberry cultivars face challenges such as low root and cane vigor, non-uniform floricane budbreak, smaller fruit size, and reduced tolerance to Raspberry Bushy Dwarf Virus, which affect propagation and harvest efficiency.
Innovation Solution
The development of the 'Pacific Gema' primocane-fruiting raspberry cultivar, resulting from a hand-pollinated cross between 'Pacific Deluxe' and '414a', exhibits enhanced root and cane vigor, uniform floricane budbreak, larger and conic fruit shape, improved flavor, and increased tolerance to Raspberry Bushy Dwarf Virus, achieved through asexual propagation and micropropagation techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing raspberry cultivars are used, then propagation and harvest can proceed, but root and cane vigor is low, floricane budbreak is non-uniform, and fruit size is small
Solution Approach 1:
The patent applies parameter changes by creating a new cultivar with genetically altered characteristics through controlled breeding. The 'Pacific Gema' cultivar exhibits modified parameters including increased root and cane vigor, uniform floricane budbreak timing, and larger fruit size compared to existing cultivars. These parameter changes resolve the contradiction by simultaneously improving productivity through larger fruits and enhancing reliability through uniform budbreak.
2Reliability
If existing raspberry cultivars are used, then cultivation can continue, but tolerance to Raspberry Bushy Dwarf Virus is reduced
Solution Approach 1:
The patent utilizes parameter changes by developing a cultivar with enhanced genetic resistance parameters. The 'Pacific Gema' cultivar demonstrates significantly improved tolerance to Raspberry Bushy Dwarf Virus compared to existing cultivars like 'Pacific Majesty'. This genetic parameter change allows the plant to maintain health and productivity even when exposed to the virus, resolving the contradiction between reliability and harmful factors.
3Ease of manufacture
If existing raspberry cultivars are used, then propagation can proceed, but root production for sale is limited
Solution Approach 1:
The patent applies parameter changes by cultivating a cultivar with genetically enhanced root system parameters. The 'Pacific Gema' cultivar produces significantly greater root quantity and vigor compared to existing cultivars. This parameter improvement directly enhances propagation ease and increases the quantity of saleable root material, resolving the contradiction between ease of manufacture and quantity of substance.
Data Source
AI summary
A new and distinct cultivar of Raspberry plant named ‘Pacific Gema’ as described and shown herein. ‘Pacific Gema’ provides balanced heavy crop loads on both primocanes and floricanes, large conic fruits that are flavorful and aromatic, high vigor and strong field tolerance to Raspberry Bushy Dwarf Virus (RBDV).