Ranchera Helenium Cultivar Compact Habit and Flower Color
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Solution Overview
Problem
Existing Helenium plants lack compact and uniformly mounding growth habits with attractive ray and disc colors, and there is a need for a cultivar that maintains these traits under varying environmental conditions.
Innovation Solution
A new cultivar, 'Ranchera', is developed through open-pollination of Helenium autumnale, characterized by a compact, broadly upright, and uniformly mounding plant habit with dark orange-colored ray florets and strong peduncles that hold inflorescences above the foliar plane, achieved through asexual reproduction by terminal cuttings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If existing Helenium plants are grown, then they produce flowers, but they lack compact and uniformly mounding growth habits
Solution Approach 1:
The patent applies parameter changes by selecting and breeding plants with specific growth habit parameters (compact, mounding form) while maintaining flowering productivity. The 'Ranchera' cultivar was developed through controlled breeding to achieve a unique combination of compact plant habit (12 cm height) with vigorous flowering, representing a change in the growth parameter space of Helenium plants.
2Shape
If Helenium plants are bred for compact growth, then plant size is reduced, but ray and disc color attraction is compromised
Solution Approach 1:
The patent applies local quality by enhancing specific local characteristics (ray floret color and disc color) independently of overall plant size. The 'Ranchera' cultivar exhibits vivid orange-red ray florets and dark purple-brown disc florets, creating localized color intensity that compensates for the compact plant size, making the flowers equally attractive despite reduced overall dimensions.
3Adaptability or versatility
If open-pollination breeding is used, then genetic diversity is increased, but trait stability in successive generations is reduced
Solution Approach 1:
The patent applies feedback through systematic selection and evaluation of progeny plants across multiple generations. The breeder conducted controlled open-pollination, then carefully selected plants exhibiting the desired compact mounding habit and flower color traits, propagating only those that demonstrated stable inheritance. This selective feedback loop ensured trait stability while maintaining the benefits of open-pollination genetic diversity.
Data Source
AI summary
A new and distinct cultivar of Helenium plant named ‘Ranchera’ characterized by its compact, broadly upright and uniformly mounding plant habit; moderately vigorous growth habit; freely flowering habit; inflorescences with dark orange-colored ray florets; and strong peduncles that hold the inflorescences above the foliar plane.