Seedless Grapevine Cultivar With Violet Flesh and Crunchy Berries
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Solution Overview
Problem
There is a need for a new seedless grapevine cultivar with distinct characteristics such as large, violet-colored, crunchy, and firm berries with a neutral flavor, which can be distinguished from existing cultivars like 'Blagratwo' and 'ITHUMNINE', and is resistant to common grapevine diseases and pests.
Innovation Solution
The development of a new grapevine cultivar named 'BLOMG04', derived from a hybridization between 'ITUMNINE' and '15M-121-511', which produces seedless, violet-fleshed, cylindrical berries with a good sugar-acid balance, and is grafted onto the 1103 Paulsen rootstock, exhibiting medium vigor and resistance to common grapevine diseases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a new grapevine cultivar is developed through hybridization to achieve distinct berry characteristics, then berry quality and distinctiveness are improved, but breeding complexity and time required are increased
Solution Approach 1:
The patent applies preliminary action by performing embryo culture on abortive seeds from the hybridization cross between 'ITUMNINE' and '15M-121-511'. This allows the breeder to rescue and develop viable plants from otherwise non-viable hybrid seeds, thereby obtaining the desired distinct berry characteristics (violet flesh color, cylindrical shape, seedless) while controlling the breeding process to manage complexity.
2Adaptability or versatility
If seedless grape varieties are developed, then consumer preference and marketability are improved, but genetic complexity and breeding difficulty are increased
Solution Approach 1:
The patent applies the taking out principle by removing the seed component from the grape berry through embryo culture technology. The abortive seeds from the hybridization are cultured in vitro to produce seedless berries, thereby achieving the desired seedless characteristic for marketability while using a controlled laboratory technique to manage the genetic breeding complexity.
3Adaptability or versatility
If grape varieties with colored flesh are developed, then aesthetic appeal and value are improved, but genetic stability and consistency are challenged
Solution Approach 1:
The patent applies preliminary action by performing embryo culture at an early stage to establish the desired genetic traits. By culturing the embryos from the hybridization cross and establishing them as complete plants, the breeder ensures that the colored flesh characteristic (violet flesh color 5R3/4) is genetically established and will be stably transmitted to subsequent generations through asexual propagation.
4Adaptability or versatility
If a new cultivar is distinguished from existing varieties, then market differentiation is improved, but characterization and documentation requirements are increased
Solution Approach 1:
The patent applies local quality by focusing on specific distinguishing characteristics of the 'BLOMG04' cultivar: violet flesh color (5R3/4), cylindrical berry shape, thinner skin compared to parent 'ITUMNINE', and seedless berries. By documenting these specific local qualities rather than all possible traits, the patent achieves market differentiation while managing the complexity of characterization requirements.
Data Source
AI summary
‘BLOMG04’ is a new and distinct grapevine plant with novel characteristics that include good fertility and excellent neutral flavor with a good balance between sugar-acid. The berries produced by ‘BLOMG04’ are violet (5RP4/2), with colored flesh (5R3/4), and crunchy texture. The berries produced by ‘BLOMG04’ are large, weighing 6.5 g/berry on average, and harvested in late August in Murcia, Spain.