Agave NCYU Cherry Cultivar Breeding for Upright Habit and Cut Flower Longevity
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Solution Overview
Problem
There is a need for a compact and upright Agave plant with attractive inflorescences that can reproduce stably through asexual methods, offering distinct flower characteristics and improved cut flower performance.
Innovation Solution
The development of a new Agave cultivar, 'NCYU Cherry', resulting from a controlled cross-pollination between proprietary selections of Agave tuberosa, exhibiting upright growth, straight lanceolate leaves, purplish red-colored semi-double to double flowers, and a pleasant fragrance, which are stable through asexual reproduction by divisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a planned breeding program is conducted to create compact and upright Agave plants with attractive inflorescences, then the plant habit and flower characteristics are improved, but the breeding process and time required are increased
Solution Approach 1:
The breeding program was conducted with predetermined objectives to create compact and upright plants with attractive inflorescences. The cross-pollination between selected parents (code 59# and 84E19) was planned in advance with specific goals, allowing systematic selection of desired traits rather than random breeding.
Solution Approach 2:
The breeding program utilized feedback mechanisms by evaluating progeny plants and selecting those that exhibited the desired upright habit and attractive inflorescences. The single flowering plant discovered in November 2011 was selected based on its performance and characteristics, and subsequent asexual reproduction confirmed stable inheritance of these traits.
2Shape
If cross-pollination is performed between proprietary selections to achieve distinct flower characteristics, then flower color and size are improved, but the complexity of the breeding program is increased
Solution Approach 1:
The breeding program focused on specific local qualities of the parent plants - selecting code 59# and 84E19 for their particular flower characteristics. The cross-pollination was designed to combine specific traits (flower color, size, form) from each parent rather than attempting to improve all characteristics simultaneously.
3Stability of the object's composition
If asexual reproduction by divisions is used to reproduce the new cultivar, then genetic stability is improved, but the propagation time is increased
Solution Approach 1:
Asexual reproduction by divisions creates genetic copies of the selected plant. This method produces clones that are genetically identical to the parent, ensuring stable inheritance of the upright habit, straight lanceolate leaves, and purplish red semi-double to double flowers without the variability introduced by sexual reproduction.
Data Source
AI summary
A new and distinct cultivar of Agave plant named ‘NCYU Cherry’, characterized by its upright plant habit; straight lanceolate-shaped leaves that are not twisting; numerous semi-double to double-type purplish red-colored flowers arranged on upright and strong flower scapes; pleasant fragrance; and good cut flower performance.