SMNIGLA
| Denomination: | 'SMNIGLA' |
|---|---|
| Trade name: | Squeeze Box |
| Botanical Name: | Ilex glabra |
| Applicant/Holder: |
Spring Meadow Nursery, Inc. 12601 120th Avenue Grand Haven, Michigan 49417 United States of America |
| Breeder: |
Timothy D. Wood, Spring Lake, United States of America |
| Agent in Canada: |
BioFlora Inc. 38723 Fingal Line R.R. #1 St. Thomas, Ontario N5P 3S5 Canada Tel: 519-317-7511 |
| Application Date: | 2023-03-03 |
| Provisional Protection: | 2023-03-03 |
| Application Number: | 23-11222 |
Variety Description
Variety used for comparison: 'SMNIGAB17' (Gem Box)
Summary: The plants of 'SMNIGLA' are larger than those of 'SMNIGAB17'. The foliage of ‘SMNIGLA' is medium density whereas that of 'SMNIGAB17' is dense. The internode of the main stem of ‘SMNIGLA' is longer than that of ‘SMNIGAB17'. The leaf of ‘SMNIGLA' is shorter and wider than that of ‘SMNIGAB17'. The apex of the leaf blade of ‘SMNIGLA' is obtuse whereas that of ‘SMNIGAB17' is acute. The number of spines on the leaf blade of ‘SMNIGLA' ranges from nine to thirteen whereas that of ‘SMNIGAB17' ranges from four to five. The petiole of ‘SMNIGLA' is shorter than that of ‘SMNIGAB17'. ‘SMNIGLA' is a male plant whereas ‘SMNIGAB17' is a female plant.
Description:
PLANT: deciduous shrub, upright to bushy rounded growth habit, high degree of branching, semi-erect branch attitude, medium density of foliage, male
STEM: medium thickness, absent or very weak intensity of anthocyanin colouration, smooth, light green, no twisting
LEAF: alternate arrangement along stem, simple type, elliptic to obovate shape, obtuse apex, cuneate base, entire margin except for weakly crenate on distal third, weak undulation of margin, ranging from 9 to 13 spines, medium glossiness on upper side, smooth texture, weak fragrance, dark brown green (close to RHS 146B) on upper side, light to medium green on lower side
PETIOLE: present
FLOWER: white (RHS NN155B), approximately 7.5cm
Origin & Breeding History: 'SMNIGLA' originated from an open-pollinated cross that occurred in 2008 in Grand Haven, Michigan, U.S.A. between the female parent variety, an unnamed proprietary selection and an unknown male parent. The new variety was selected as a single plant from the resulting progeny in 2010 based on plant growth habit, foliage colour and appearance and sex.
Tests & Trials: The comparative trial for 'SMNIGLA' was conducted in irrigated containers outdoors during the summer of 2023 and 2024 at Bioflora Inc., in St. Thomas, Ontario. The trial included a total of 12 shrubs each of the candidate variety and reference variety. All shrubs were grown from 11.4 cm liners planted into 7.6 litre pots in the summer of 2023. Plants were overwintered in a polyhouse. Observations and measurements were taken from 10 plants of each variety on September 14, 2024. All colour determinations were made using the 2015 Royal Horticultural Society (RHS) Colour Chart. Mean differences were significant at the 5% probability level based on Student's t-tests.
Comparison tables for 'SMNIGLA' with reference variety 'SMNIGAB17'
Plant height (cm)
| 'SMNIGLA' | 'SMNIGAB17' | |
|---|---|---|
| mean | 45.98 | 32.44 |
| std. deviation | 4.376 | 2.648 |
Plant width (cm)
| 'SMNIGLA' | 'SMNIGAB17' | |
|---|---|---|
| mean | 42.48 | 26.5 |
| std. deviation | 4.434 | 3.157 |
Main stem internode length (cm)
| 'SMNIGLA' | 'SMNIGAB17' | |
|---|---|---|
| mean | 3.23 | 2.60 |
| std. deviation | 0.452 | 0.463 |
Leaf length (cm)
| 'SMNIGLA' | 'SMNIGAB17' | |
|---|---|---|
| mean | 3.32 | 4.09 |
| std. deviation | 0.087 | 0.207 |
Leaf width (cm)
| 'SMNIGLA' | 'SMNIGAB17' | |
|---|---|---|
| mean | 1.13 | 0.85 |
| std. deviation | 0.064 | 0.081 |
Petiole length (cm)
| 'SMNIGLA' | 'SMNIGAB17' | |
|---|---|---|
| mean | 0.53 | 0.64 |
| std. deviation | 0.09 | 0.128 |
Click on image for larger view
Inkberry: 'SMNGLA' (left) with reference variety 'SMNIGAB17' (right)
Click on image for larger view
Inkberry: 'SMNGLA' (left) with reference variety 'SMNIGAB17' (right)
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