Vitex SMVACBD Cultivar Compact Habit and Violet Blue Flowers
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Solution Overview
Problem
There is a need for new compact and uniform Vitex plants with attractive leaf and flower coloration that can maintain stability across varying environmental conditions and cultural practices.
Innovation Solution
A new cultivar of Vitex Agnus-castus, designated 'SMVACBD', was developed through planned breeding, exhibiting a compact and upright habit, freely branching with violet blue-colored flowers, and good garden performance, achieved through asexual reproduction by softwood cuttings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If traditional Vitex Agnus-castus plants are grown, then they exhibit natural growth patterns, but they become large and less uniform in size
Solution Approach 1:
The patent applies parameter changes by selecting and propagating a specific cultivar ('SMVACBD') with genetically determined compact growth parameters. The plant exhibits a compact habit with a height of about 1 meter and diameter of about 1.5 meters, significantly smaller than traditional Vitex Agnus-castus. This is achieved through controlled breeding and asexual reproduction to maintain stable, compact dimensions.
2Stability of the object's composition
If Vitex plants are propagated sexually, then genetic diversity is achieved, but uniformity and stability of traits are reduced
Solution Approach 1:
The patent employs copying through asexual propagation by softwood cuttings to reproduce the 'SMVACBD' cultivar. This method creates genetically identical copies of the parent plant, ensuring that unique traits such as compact habit, freely branching structure, and violet blue flower coloration are stably reproduced without genetic variation. The cutting process involves taking vegetative portions and inducing root formation to generate true-to-type replicas.
3Adaptability or versatility
If Vitex plants are grown in varying environmental conditions, then adaptability is tested, but phenotypic consistency becomes difficult to maintain
Solution Approach 1:
The patent inverts the conventional approach by first establishing genetic stability through asexual propagation, then testing environmental adaptability. Rather than selecting for adaptability first and hoping for phenotypic consistency, the method propagates clones to ensure genetic uniformity, then evaluates how this stable genotype expresses phenotypically across different environmental conditions including temperature variations and drought tolerance.
4Length of stationary object
If compact Vitex varieties are selected, then plant size is reduced, but flower coloration intensity may be compromised
Solution Approach 1:
The patent applies local quality by concentrating and enhancing specific traits in different parts of the plant. The 'SMVACBD' cultivar exhibits compact overall size while simultaneously displaying intense violet blue flower coloration (close to 89A on the RHS color chart). The freely branching habit distributes flowers throughout the compact structure, ensuring prominent color display despite reduced plant dimensions.
Data Source
AI summary
A new and distinct cultivar of Vitex plant named ‘SMVACBD’, characterized by its compact and upright plant habit; moderately vigorous growth habit; freely branching habit; full and dense plants; freely flowering habit; violet blue-colored flowers that are held above and beyond the foliar plane on upright panicles; and good garden performance.