Osteospermum Doostmarkar Cultivar Breeding for Compact Habit and Early Flowering
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Solution Overview
Problem
There is a need for new compact Osteospermum plants with unique and attractive ray and disc floret coloration, as well as improved branching and flowering habits, which existing cultivars do not adequately provide.
Innovation Solution
A new cultivar, 'Doostmarkar', resulting from a cross-pollination between Osteospermum ecklonis QQ12-000005-001 and 'Summertime Kardinal', exhibiting a compact, uniformly branching, and early flowering habit with reddish-purple ray florets, distinguishing it from other Osteospermum varieties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If existing Osteospermum cultivars are used, then basic flowering is achieved, but unique and attractive ray and disc floret coloration is not provided
Solution Approach 1:
The patent applies parameter changes by modifying the genetic parameters of Osteospermum ecklonis through controlled cross-pollination between specific parent plants (QQ12-000005-001 and Summertime Kardinal). This breeding approach changes the color parameters of ray and disc florets to produce the unique reddish-purple coloration with contrasting yellow centers that distinguishes the 'Doostmarkar' cultivar from existing varieties.
2Productivity
If existing Osteospermum cultivars are used, then basic growth is achieved, but compact and uniformly branching habit is not provided
Solution Approach 1:
The patent changes the morphological parameters of the plant through selective breeding, producing a compact, mounding habit with uniform branching. The 'Doostmarkar' cultivar exhibits a controlled growth parameter that creates a dense, bushy form with multiple lateral branches, resolving the contradiction between maintaining productivity and achieving uniform compact shape.
3Productivity
If existing Osteospermum cultivars are used, then basic flowering is achieved, but early and uniform flowering habit is not provided
Solution Approach 1:
The patent modifies the phenological parameters of the Osteospermum plant through breeding, resulting in earlier flowering onset and more uniform flowering duration. The 'Doostmarkar' cultivar displays improved time parameters for flowering, beginning to flower earlier in the season and maintaining uniform flowering across the plant, thereby reducing the time loss before productive flowering begins.
Data Source
AI summary
A new and distinct cultivar of Osteospermum plant named ‘Doostmarkar’, characterized by its compact, broadly upright, uniform and mounding plant habit; moderately vigorous growth habit; freely and uniformly branching habit; freely and early flowering habit; large single-type inflorescences with reddish purple-colored ray florets; and good garden performance.