Helianthus plant named ‘Low Down’

Details Helianthus plant named ‘Low Down’ Helianthus plant named ‘Low Down’

2001-07-16

2002-11-05

Campell, Bruce R. (Department: 1661)

Plants

Herbaceous ornamnental flowering plant

Plant Patent

active

PP013197

ABSTRACT:

BOTANICAL CLASSIFICATION
Helianthus salicifolius.
VARIETY DENOMINATION
‘Low Down’.
BACKGROUND OF THE INVENTION
The present invention relates to a new and distinct cultivar of Helianthus plant, botanically known as
Helianthus salicifolius
and hereinafter referred to by the name ‘Low Down’.
The new cultivar is a product of a planned breeding program conducted by the Inventor in Massey, Auckland, New Zealand. The objective of the breeding program is to create new Helianthus cultivars having compact plant habit and good garden performance.
The new Helianthus originated from a cross made by the Inventor in 1992, in Massey, Auckland, New Zealand, of the Helianthus cultivar Golden Pyramid, not patented, as the female, or seed, parent with the Helianthus cultivar Autumn Glory, not patented, as the male, or pollen, parent. The new Helianthus was discovered and selected by the Inventor as a single flowering plant within the progeny of the stated cross grown in a controlled environment in Massey, Auckland, New Zealand in 1992. The selection of this plant was based on its compact plant habit and good garden performance.
Asexual reproduction of the new cultivar by terminal cuttings taken in a controlled environment in Massey, Auckland, New Zealand since 1993, has shown that the unique features of this new Helianthus are stable and reproduced true to type in successive generations.
SUMMARY OF THE INVENTION
The cultivar Low Down has not been observed under all possible environmental conditions. The phenotype may vary somewhat with variations in environment such as temperature, daylength, light intensity, water status and fertilizer rate and type without, however, any variance in genotype.
The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘Low Down’. These characteristics in combination distinguish ‘Low Down’ as a new and distinct cultivar:
1. Compact and mounded plant habit.
2. Upright growth habit.
3. Freely basal branching habit and short internodes; dense and full plants.
4. Freely flowering habit.
5. Daisy-type inflorescences with bright yellow ray florets and dark brown disc florets.
6. Good garden performance.
Plants of the new Helianthus can be compared to plants of the female parent, the cultivar Golden Pyramid. In side-by-side comparisons conducted by the Inventor in Massey, Auckland, New Zealand, California, plants of the new Helianthus differ from plants of the cultivar Golden Pyramid in the following characteristics:
1. Plants of the new Helianthus are more compact than plants of the cultivar Golden Pyramid.
2. Plants of the new Helianthus have a low mounded habit whereas plants of the cultivar Golden Pyramid have a tall pyramidal habit.
3. Plants of the new Helianthus have shorter internodes than plants of the cultivar Golden Pyramid.
4. Plants of the new Helianthus have smaller inflorescences than plants of the cultivar Golden Pyramid.
Plants of the new Helianthus can be compared to plants of the female parent, the cultivar Autumn Glory. In side-by-side comparisons conducted by the Inventor in Massey, Auckland, New Zealand, plants of the new Helianthus differ from plants of the cultivar Autumn Glory in the following characteristics:
1. Plants of the new Helianthus are much more compact than plants of the cultivar Autumn Glory.
2. Plants of the new Helianthus have a low mounded habit whereas plants of the cultivar Autumn Glory have tall columnar habit.
3. Plants of the new Helianthus have much shorter internodes than plants of the cultivar Autumn Glory.
4. Plants of the new Helianthus have smaller inflorescences than plants of the cultivar Autumn Glory.
Compared to plants of the cultivar First Light, disclosed in U.S. Plant patent application Ser. No. 09/904,728, filed concurrently, plant of the new Helianthus are shorter, have shorter leaves, and have smaller inflorescences.
Plants of the new Helianthus can be compared to plants of the cultivar Table Mountain, not patented. In side-by-side comparisons conducted by the Inventor in Massey, Auckland, New Zealand, plants of the new Helianthus differ from plants of the cultivar Table Mountain in the following characteristics:
1. Plants of the new Helianthus have a low mounded habit whereas plants of the cultivar Table Mountain have a flat-topped habit.
2. Plants of the new Helianthus are more compact than plants of the cultivar Table Mountain.
3. Plants of the new Helianthus have shorter internodes than plants of the cultivar Table Mountain.
4. Plants of the new Helianthus have smaller inflorescences than plants of the cultivar Table Mountain.


REFERENCES:
UPOV-ROM GTITM Computer Database, 2001/06, GTI Jouve Retrieval Software, citation for ‘Low Down’.

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