Cosmos New Choco Cultivar Powdery Mildew Resistance
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Solution Overview
Problem
Existing Cosmos cultivars are susceptible to Powdery Mildew and have limited tolerance to high temperatures and varying environmental conditions, which affects their stability and performance in different climates.
Innovation Solution
The development of the 'New Choco' cultivar, which is derived from open-pollination of Cosmos atrosanguineus, exhibits improved traits such as upright and spreading growth, intense red-colored ray florets, enhanced branching, faster root development, and increased tolerance to Powdery Mildew, rain, and high temperatures, achieved through asexual reproduction by vegetative cuttings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing Cosmos cultivars are grown in environments with Powdery Mildew pressure and high temperatures, then they can be cultivated, but their susceptibility to Powdery Mildew and limited temperature tolerance reduce their reliability and garden performance
Solution Approach 1:
The patent applies parameter changes by selecting and breeding for specific genetic traits that alter the plant's physiological parameters. The 'New Choco' cultivar exhibits changed parameters including enhanced tolerance to Powdery Mildew (a pathological stressor) and improved tolerance to high temperatures, representing fundamental changes in the plant's response parameters to environmental stressors through selective breeding
2Stability of the object's composition
If existing Cosmos cultivars are propagated sexually, then genetic diversity is maintained, but the unique features are not stable and do not reproduce true to type
Solution Approach 1:
The patent applies the copying principle by using vegetative cuttings to create exact genetic copies of the selected plant. This asexual propagation method produces clones that are true to type, ensuring that the unique features of 'New Choco' (intense red ray florets, upright spreading habit, branching growth) are perfectly replicated in successive generations without the genetic variation introduced by sexual reproduction
Data Source
AI summary
A new and distinct cultivar of Cosmos plant named ‘New Choco’, characterized by its upright and outwardly spreading plant habit; freely branching growth habit; freely flowering habit; single type inflorescences with intense red-colored ray florets; relatively tolerant to Powdery Mildew; and good garden performance.