47. Volume 14- Number 2 - IP Australia
47. Volume 14- Number 2 - IP Australia
47. Volume 14- Number 2 - IP Australia
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PLANT VARIETIES JOURNAL 2001 VOL <strong>14</strong> NO. 2<br />
excluded because it is a freestone nectarine where as the<br />
candidate is clingstone.<br />
Comparative Trial The description is based on overseas<br />
data gathered from U.S. Plant Patent 10,926. The<br />
characteristics were verified under <strong>Australia</strong>n conditions.<br />
The trial trees are planted at Buchanan’s Nursery<br />
Tenterfield, NSW. They have been observed for the past two<br />
years. From all of the observations the variety is performing<br />
the same in <strong>Australia</strong> as it does in the USA. It has proven to<br />
be distinct, uniform and stable through several propagation<br />
cycles.<br />
Prior Applications and Sales<br />
Country Year Current Status Name Applied<br />
USA 1997 Granted ‘August Pearl’<br />
First Sold in the USA in Dec 1997.<br />
Description: Peter Buchanan, Buchanan’s Nursery, Tenterfield, NSW.<br />
‘Kay Pearl’ syn Kay Ice<br />
Application No: 2000/271 Accepted: 6 Nov 2000.<br />
Applicant: Lowell G Bradford & Norman G Bradford,<br />
Le Grand, California, USA.<br />
Agent: Buchanan’s Nursery, “Monkstadt”, via Tenterfield,<br />
NSW.<br />
Characteristics (Figure 30) Tree: size large, vigour strong,<br />
growth habit spreading and dense, very productive, regular<br />
bearing. Trunk: size medium, texture medium to rough,<br />
bark colour greyish brown (5.5YR3.5/1.8); lenticels<br />
numerous, colour: strong brown (4.6YR3.5/7.6) average<br />
size 3.2-9.5mm. Branches: size medium, texture smooth on<br />
1st year wood, increasing roughness with age, colour of 1st<br />
year wood topside: dark red (4.0R2.8/6.8) when exposed to<br />
sunlight, 1st year wood underside brilliant yellow green<br />
(4.9GY8.2/9.1), older wood moderate yellowish brown<br />
(9.5YR4.4/3.9); lenticels numerous, small, colour light<br />
orange yellow (9.4YR8.3/6.8), average size 1.6mm. Leaf<br />
Blade: size medium, average length 139.7mm, average<br />
width 38.1mm, shape elliptical, apex acuminate, base acute,<br />
surface smooth, colour of dorsal surface moderate olive<br />
green (5.7GY3.6/4.8), ventral surface moderate yellow<br />
green (4.8GY6.0/5.0), margin finely serrated, venation<br />
pinnately net veined. Petiole: average length 9.5mm,<br />
average thickness 1.6mm, colour: moderate yellow green<br />
(4.8GY6.0/5.0). Stipules: numerous, 2-6 per growing tip,<br />
average length 9.5mm. Nectaries: numbers 2-4 per leaf,<br />
position slightly alternately positioned on petiole and base<br />
of blade, size medium, shape globose, colour light yellow<br />
green (5.0GY8.4/5.6). Flower bud: size medium, length<br />
medium, form free, surface pubescent. Flowers: blooming<br />
period early, size large, colour pale pink (2.0R8.7/2.1).<br />
Fruit: size uniform, large average diameter axially 66.7mm,<br />
average transversely in suture plane 69.9mm, shape<br />
globose, uniform, mostly symmetrical with a few<br />
unsymmetrical, inconspicuous suture line extending from<br />
the base to slightly beyond the apex, having a slight<br />
depression beyond the pistil point. Stalk cavity: flaring,<br />
circular, suture showing on one side, depth 9.5mm, breadth<br />
19.1mm, base rounded and slightly truncate, apex rounded,<br />
pistil point negligible in length, depressed within the suture.<br />
Stalk: medium, average length 9.5mm, average width<br />
4.8mm, skin thickness medium, texture smooth, adherence<br />
to flesh strong, tendency to crack absent, colour very dark<br />
54<br />
red (4.2RL.2/4.8) with strong orange yellow<br />
(9.1YR7.1/11.6) freckling toward the apex, with vivid<br />
purplish green (7.3G8.8/1.9) stem markings typical on<br />
some fruit. Flesh: colour greenish white (10.0G9.2/0.8)<br />
from skin to stone, with no bleeding and very slight<br />
moderate red (3.8r4.4/9.1) streaking next to the stone,<br />
surface of pit cavity covered with moderate red (3.8r4.4/9.1)<br />
fibres, amygdalin wanting, juice moderate, rich texture,<br />
extremely firm and crisp, fibres abundant, fine, ripens<br />
evenly, slightly earlier at apex and lips, flavour mild subacidic<br />
and sweet, with 16 to18 brix, aroma moderate. Stone:<br />
type freestone, shape oval, base somewhat oblique, apex<br />
acute, sides equal, surface horizontally furrowed toward the<br />
apex and some pitting toward the base, ridges jagged toward<br />
the base, colour light brown (5.4YR5.4/4.8) through the<br />
wall when first removed and cracked, tendency to split<br />
absent. Kernel: shape oval, taste bitter, viable, average<br />
width 12.7mm, average length 17.5mm, skin colour pale<br />
yellow (4.7y9.0/3.8) when first removed, pellicle colour<br />
moderate yellowish brown (9.5yr4.4/3.9), amygdalin<br />
abundant. Maturity: hard ripe 20 Dec, date of first picking<br />
22 Dec, date of last picking 1 Jan on trial trees at<br />
Buchanan’s Nursery, Tenterfield, NSW. (Note: all colour<br />
designations are ISCC-NBS colour codes and Munsell<br />
renotations.)<br />
Origin and Breeding Controlled pollination: F 1 between<br />
seed parent ‘Spring Bright’ and an unnamed pollen parent<br />
in a planned breeding program in Le Grand, California,<br />
USA. The candidate variety is similar to its seed parent,<br />
‘Spring Bright’ (U.S. Plant Pat. No. 7,507) by producing<br />
very firm, full red nectarines, but is very distinguished<br />
therefrom by producing fruit that is white flesh instead of<br />
yellow flesh, that is freestone instead of clingstone, and that<br />
is sub-acidic in flavour instead of acidic. Selection criteria:<br />
firmness, sub-acidic, white flesh. Propagation: by budding<br />
and grafting. After each propagation the variety has been<br />
true to type and stable. Breeder: Lowell G Bradford and<br />
Norman G Bradford, Le Grand, California, USA.<br />
Choice of Comparators The two comparators that have<br />
been selected are ‘Spring Bright’ (U.S. Plant Patent 7,507)<br />
and ‘Ruby Diamond’ (U.S. Plant Patent 7,918) on the basis<br />
that the candidate has intermediate maturity between the<br />
comparators. However, the major difference between the<br />
varieties is the new variety is white fleshed and the<br />
comparators are both yellow fleshed. The seed parent was<br />
excluded because it is a clingstone nectarine.<br />
Comparative Trial The description is based on overseas<br />
data gathered from U.S. Plant Patent 10,871. The<br />
characteristics were verified under <strong>Australia</strong>n conditions.<br />
The trial trees are planted at Buchanan’s Nursery<br />
Tenterfield, NSW. They have been observed for the past two<br />
years. From all of the observations the variety is performing<br />
the same in <strong>Australia</strong> as it does in the USA. It has proven to<br />
be distinct, uniform and stable through several propagation<br />
cycles.<br />
Prior Applications and Sales<br />
Country Year Current Status Name Applied<br />
USA 1997 Granted ‘Kay Pearl’<br />
Chile 1999 Granted ‘Kay Pearl’<br />
First Sold in the USA in Dec 1997.<br />
Description: Peter Buchanan, Buchanan’s Nursery, Tenterfield, NSW.