Plant Variety Journal - IP Australia

Plant Varieties Journal Vol. 21 No.3
Details of Application
Application Number 2005/068
Variety Name ‘Merbein 5512’
Genus Species Vitis berlandieri
Common Name Sweet Mountain Grape
Synonym Nil
Accepted Date 19 Apr 2005
Applicant Commonwealth Scientific and Industrial Research Organisation,
Canberra, ACT
Agent N/A
Qualified Person Stephen Sykes
Details of Comparative Trial
Location Merbein, VIC.
Descriptor Grapevine (Vitis) TG/50/8.
Period 2005-2007
Conditions Vines for comparative trial purposes were grown in pots under
shadehouse conditions. Ampelographic data were collected from
vines growing under vineyard conditions.
Trial Design ‘Merbein 5512’ was compared with 14 other rootstock varieties or
selections, viz. ‘Borner’ (V. riparia x V. cinerea), ‘Freedom’ [a
complex multi-species hybrid (V. labrusca, V. riparia, V. vinifera)
complex hybrid) x (V. rupestris x V. candicans)], ‘41B’ (V. vinifera
Cv. Chasselas x V. berlandieri), ‘125AA Kober’ (V. berlandieri x
V. riparia), ‘5C Teleki’ (V. berlandieri x V. riparia), ‘K48-38
Lider’ [V. rupestris x V. candicans (aka Vitis champini) x V.
vinifera Cv. Sultanina], ‘K48-45 Lider’ [V. rupestris x V.
candicans (aka Vitis champini) x V. vinifera Cv. Sultanina], ‘K48-
48 Lider’ [V. rupestris x V. candicans (aka Vitis champini) x V.
vinifera Cv. Sultanina], ‘Cosmos 10A’ (V. berlandieri x V.
riparia), ‘Dogridge’ [V. rupestris x V. candicans (aka Vitis
champini)], CSIRO selections ‘Merbein 5489’ (V. berlandieri
Ressequier No. 1 x V. berlandieri 7651), ‘Merbein 6262’ (V.
cinerea 55 x V. cinerea 194-1), ‘M61-19’ (V. cinerea 55 x V.
cinerea 194-1) and ‘M61-36’ (V. cinerea 55 x V. cinerea 194-1).
The trial included three other Vitis rootstock varieties for which
Part 1 PBR applications have been submitted. As a result, the
comparators for these other varieties were also included and the
data were analysed together. Vines were propagated from dormant
cuttings collected during winter 2005. They were struck in a
sand/perlite mix in a cold mist house over bottom heat. Rooted
cuttings were potted into a standard potting mix and transferred to
a shadehouse in 12l pots. The vines were allowed to grow as single
shoots by removing lateral shoots as they developed. When shoots
had grown to a length exceeding 1m, they were pruned to two buds
and the youngest bud was allowed to develop. The vines were
again allowed to grow as single shoots by removing lateral buds as
they developed. When shoots had reached a length exceeding
1.5m, they were again pruned and leaves at nodes 5-10 retained for
measurements to be recorded. There were 14 comparator varieties
with 15 vines per variety. The trial was laid out as a randomised
block design with one replicate vine per variety per block.
Measurements Ampelographic data following the descriptors provided by UPOV
TG/50/8 Grapevine (Vitis L.) were recorded for vines grown under
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