64. Volume 10- Number 2 - IP Australia

PLANT VARIETIES JOURNAL 1997 VOL 10 NO. 2
Origin Open pollination: Prunus dawyckensis followed by
selection 1962 – early 1980s. Breeder: R Trefois,
Gembloux, Belgium. Selection criteria: from a seedling
population on the basis of dwarfing ability for sweet cherry.
Propagation: tissue culture and grafting through a large
number of generations in Europe and USA.
Comparative Trial Description based on overseas test
report from CPOV, Geves, France. The characters were
verified where possible and confirmed by the qualified
person under Australian conditions. The qualified person
considers ‘GM 9’, ‘GM79’, ‘Mazzard’, ‘Mahaleb’ are the
appropriate comparators available in Australia. All the
measurements were made on plants grown in Australia.
Location: Lenswood Centre of Primary Industries, SA 1996
– 1997. Conditions: plants were raised in soil-less mix in
polyethylene bags in a shadehouse. Reference was also
made to mother plants growing in the orchard.
Prior Applications and Sales
Country Year Status Name Applied
USA 1984 granted ‘GM 61/1’
France 1985 granted ‘GM 61/1’
Switzerland 1986 pending ‘GM 61/1’
Great Britain 1986 granted ‘GM 61/1’
Belgium 1986 pending ‘GM 61/1’
Germany 1987 granted ‘GM 61/1’
First sold USA 1987.
Description: JB Robinson, Scholefield Robinson Horticultural
Services, Torrens Park, SA.
‘GM 79’ syn Camil
Application No: 93/082 Accepted: 11 Mar 1993.
Applicant: Phillipe Boxus, Station des Cultures Fruitieres et
Maraicheres, Gembloux, Belgium.
Agent: South Australian Cherry Improvement
Committee, Adelaide, SA.
Description (Table 14, Figure 28) Plant: cherry rootstock
with dwarfing compatibility. Leaf: blade small to medium,
broad obovate to elliptic with an acute angle at the apex,
shape of the apex acuminate, U-shaped at the base, margin
bi-crenate; petiole length short, hairiness weak, groove
depth medium; nectaries usually more than two at the base
of leaf blade and on petiole, shape round, colour red.
Origin Selection and development: natural population of
Prunus canescens 1962 – early 1980s. Breeder: R Trefois,
Gembloux, Belgium. Selection criteria: from a seedling
population on the basis of dwarfing ability for sweet cherry.
Propagation: tissue culture and grafting through a large
number of generations in Europe and USA.
Comparative Trial Description based on overseas test
report from CPOV, Geves, France. The characters were
verified and confirmed where possible by the qualified
person under Australian conditions. The qualified person
considers ‘Mazzard’, ‘Mahaleb’ are the appropriate
comparators available in Australia. All the measurements
were made on plants grown in Australia. Location:
Lenswood Centre of Primary Industries, SA 1996 – 1997.
Conditions: plants were raised in soil-less mix in
polyethylene bags in a shadehouse. Reference was also
made to mother plants growing in the orchard.
Prior Applications and Sales
Country Year Status Name Applied
USA 1984 granted ‘GM 79’
France 1985 granted ‘GM 79’
Switzerland 1986 granted ‘GM 79’
Great Britain 1986 surrendered ‘GM 79’
Belgium 1986 granted ‘Camil’
Germany 1987 surrendered ‘GM 79’
First sold USA 1987.
Description: JB Robinson, Scholefield Robinson Horticultural
Services, Torrens Park, SA.
Table 14 Prunus rootstock varieties
‘GM 61/1’ ‘GM 9’ ‘GM 79’ *‘Mazzard’ *‘Mahaleb’
VEGETATIVE BUD
shape conical conical conical rounded conical to
ovoid
position in rela- slightly held adpressed adpressed to slightly held slightly held
tion to shoot out slightly held out to clearly out
out
held out
LEAF
attitude upwards oblique to horizontal upwards horizontal to
downwards
downwards
LEAF BLADE
size large to very small to small to large to very very small to
large medium medium large small
shape elliptic to elongated broad ovate elliptic circular to
elongated to elliptic broad obovate
length to width
ratio medium large medium medium small
angle of apex acute acute acute acute acute to right
shape at base V-shaped V-shaped U-shaped U-shaped U-shaped
glossiness weak medium medium weak to medium
medium
28