Thuja occidentalis Thucavlo Cultivar Dense Foliage Dwarf Habit
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a need for a distinct cultivar of Thuja occidentalis that exhibits a dense foliage, dwarf growth habit, and upright semi-globular growth habit, which are not adequately met by existing cultivars like 'Smaragd' and 'Bail John', particularly in terms of plant habit and foliage density.
Innovation Solution
The development of the new cultivar 'Thucavlo', which is a naturally occurring branch mutation of 'Smaragd', characterized by dense foliage, dwarf growth habit, and upright semi-globular growth habit, achieved through asexual propagation using stem cuttings, distinguishing it from its parent and similar cultivars.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a Thuja cultivar is selected for dense foliage, then foliage density is improved, but growth habit and plant shape may be less desirable
Solution Approach 1:
The invention applies parameter changes by selecting and propagating a natural mutation that exhibits altered growth parameters. The cultivar 'Thucavlo' was identified as a spontaneous mutation of 'Smaragd' with modified characteristics including denser foliage (increased quantity parameter) and a more compact, upright semi-globular shape (modified shape parameter). Asexual propagation through stem cuttings preserves these altered parameters across generations, creating a stable cultivar that simultaneously achieves both dense foliage and desirable plant habit.
2Length of stationary object
If a Thuja cultivar is selected for dwarf growth habit, then plant size is reduced, but foliage density may be compromised
Solution Approach 1:
The cultivar 'Thucavlo' represents a natural mutation that simultaneously altered multiple growth parameters. The plant exhibits dwarf characteristics with controlled height and spread (reduced length parameters) while maintaining exceptionally dense foliage (increased quantity parameter). This dual parameter change was captured through asexual propagation, preserving the coordinated expression of both compact size and dense foliage that cannot be achieved by selecting for either trait alone.
3Adaptability or versatility
If a Thuja cultivar is propagated sexually, then genetic variation is increased, but characteristic stability is reduced
Solution Approach 1:
The invention employs asexual propagation through stem cuttings to create exact genetic copies of the mutant plant. This copying process preserves the unique combination of dense foliage and compact growth habit without the genetic recombination that would occur in sexual propagation. The cloned plants maintain identical characteristics across generations, ensuring stability of the desired traits while allowing the unique genetic combination to be replicated and distributed commercially.
Data Source
AI summary
A new cultivar of Thuja occidentalis plant named ‘Thucavlo’ that is characterized by its dense foliage, its dwarf growth habit, and its upright and globular growth habit with a broadly acute apex.