Delosperma DDDYE04-0 Cultivar Cold Tolerance and Flowering
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Solution Overview
Problem
There is a need for a new Delosperma cultivar that exhibits improved cold tolerance and increased flowering in summer, while maintaining drought and environmental adaptability, as existing varieties do not adequately address these requirements.
Innovation Solution
The cultivar 'DDDYE04-0' of Delosperma cooperi, characterized by bright yellow flowers, a low mounded habit, and enhanced cold tolerance to USDA Zone 5, achieved through asexual reproduction by terminal vegetative cuttings, demonstrating stability across generations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If existing Delosperma varieties are used, then drought and environmental adaptability are maintained, but cold tolerance is insufficient and summer flowering is limited
Solution Approach 1:
The patent applies parameter changes by selecting and propagating plants with specific genetic parameters that confer cold tolerance. The cultivar was developed through controlled pollination and selection for plants exhibiting superior cold hardiness while maintaining other adaptive traits, effectively changing the genetic parameters of the plant population to achieve both cold tolerance and environmental adaptability.
2Productivity
If existing Delosperma varieties are used, then environmental adaptability is maintained, but flowering duration and intensity in summer are reduced
Solution Approach 1:
The patent utilizes parameter changes by selecting parent plants and progeny with enhanced flowering parameters. Through controlled pollination and multiple generations of selection, the cultivar was developed to produce more flowers, longer flowering periods, and improved flower quality while maintaining environmental adaptability through continued selection for resilient traits.
3Adaptability or versatility
If open pollination is used to create new varieties, then genetic diversity is increased, but consistency and stability of traits are reduced
Solution Approach 1:
The patent applies parameter changes through a multi-stage process beginning with open pollination to generate genetic diversity, followed by systematic selection and propagation of plants exhibiting desired traits. This involves changing the genetic parameters of the population through controlled breeding and then stabilizing the selected traits through clonal propagation, achieving both diversity and stability.
Solution Approach 2:
The patent employs copying through the propagation of selected plants via vegetative methods. After identifying plants with superior traits through open pollination and selection, these plants are propagated asexually to create identical copies that maintain the desired genetic composition and trait stability, effectively copying the successful genotype while eliminating the variability introduced during the breeding phase.
Data Source
AI summary
A new and distinct cultivar of Delosperma plant named ‘DDDYE04-0’ is disclosed, characterized by abundant large, yellow flowers occurring throughout the plant. Plants have a low, mounding habit, and are tolerant to cold. The new variety is a Delosperma, normally produced as an outdoor garden or container plant.