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56. Volume 12- Number 2 - IP Australia

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DESCR<strong>IP</strong>TIONS<br />

PLANT VARIETIES JOURNAL 1999 VOL <strong>12</strong> NO. 2<br />

PLANT GROWTH HABIT<br />

semi-erect semi-erect semi-erect<br />

FREQUENCY OF PLANTS WITH RECURVED LEAFS<br />

low low medium<br />

FLAG LEAF ANTHOCYANIN<br />

medium strong medium<br />

TIME OF EAR EMERGENCE<br />

medium medium late<br />

FLAG LEAF GLAUCOSITY<br />

medium medium weak<br />

EAR GLAUCOSITY<br />

strong strong medium<br />

STEM: DENSITY OF HAIRINESS OF NECK<br />

weak weak weak<br />

PLANT LENGTH (STEM, EAR AND AWNS) (cm)<br />

mean 101.9 <strong>12</strong>0.6 <strong>12</strong>3.5<br />

std dev. 6.0 8.17 5.99<br />

LSD/sig 11.05 P≤0.01 P≤0.01<br />

WHEAT LEAF RUST 104-1,2,3,(6),(7),11.<br />

resistant segregating resistant<br />

TUTSAN<br />

Hypericum androsaemum<br />

‘Bosadua’ syn Dual Flair<br />

Application No: 97/230 Accepted: 26 Sep 1997.<br />

Applicant: H. & B.R. van den Bosch B.V., Rijnsburg, The<br />

Netherlands.<br />

Agent: Plants Management <strong>Australia</strong> Pty Ltd, Warragul,<br />

VIC.<br />

Characteristics (Table 31, Figure 29) Plant: soft woody,<br />

upright stems, width medium, height tall (average158cm),<br />

branches present but mainly single stem, reddish<br />

anthocyanin pigmentation present, branch endings forked<br />

into three with terminal seed. Leaves: sessile, oval, 7 x 5cm<br />

in size, upper surface dark green, lower surface light green<br />

with a yellowish tinge. Flowers: stalk length 1.7–3.2 cm,<br />

green to yellowish with red-brown anthocyanin colour,<br />

flower size 2.7–3.5cm, 5 slightly asymmetrical sepals<br />

(calyx), 3 larger and 2 small; calyx broadly elliptical with a<br />

round top; size 16 x 8 mm, 5 slightly asymmetrical goldenyellow<br />

petals, approx. 1.3cm long with an elliptical concave<br />

appearance. Stamens: outwardly extending with dark<br />

brown-orange bilobed anthers. Pistil (stigma, style and<br />

ovary): pale greenish-yellow small ovary, 3 light green<br />

styles and dark red-brown stigmas. Fruit: size medium, 1.2<br />

cm long and 0.7 cm in diameter; shape at the apex pointed,<br />

high length to width ratio with visible strong lobbing; berry<br />

colour at picking deep red-brown (RHS 185A) with a dull<br />

weak glossy appearance.<br />

Origin and Breeding Controlled pollination: ‘Bosadua’<br />

was selected from controlled crossings between the seed<br />

parent Nr83 and the pollen parent Nr71 in a planned<br />

breeding program. Hybridisation was performed on the<br />

breeder’s property in Rijnsburg in the Netherlands in 1988.<br />

Several plants from the 1,500 resultant seedlings were<br />

selected in August 1989. In 1991 the final selection was<br />

vegetatively propagated to 250 plants and was checked for<br />

four years to ensure uniformity and stability. Selection<br />

criteria: flowering time, berry colour, shape and size.<br />

Propagation: by vegetative means. Breeder: B.R. van den<br />

Bosch, Rijnsburg, The Netherlands.<br />

Choice of Comparators Hypericum androsaemum<br />

‘Hippie’ was chosen as a comparator because it is the most<br />

similar variety of common knowledge and only known “cut<br />

flower” variety of the same species in <strong>Australia</strong>. A wild<br />

form of Tutsan (H. androsaemum) was collected from the<br />

wild at the time of harvest and certain berry characteristics<br />

were examined and compared. St John’s Wort (H.<br />

perforatum) is a different species and was not included in<br />

the trial. Four other candidate varieties from the same<br />

breeder were also included in the trial.<br />

Comparative Trial Comparators: ‘Hippie’, and wild<br />

Tutsan. Each of the candidates were compared against each<br />

other and also with the chosen comparators. Location:<br />

conducted at Clayton road farm of F & I Baguley at Clayton<br />

South in Victoria. Conditions: trial was planted into an open<br />

high roofed polyhouse. Rooted cuttings were planted<br />

directly into a pure sand soil amended with organic matter<br />

in Jun 1998 and assessed and harvested when the berries<br />

were at their maximum colour production for commercial<br />

sale in Jan 1999. The crop was irrigated by drip irrigation<br />

and fed hydroponically, the crop was sprayed at regular<br />

intervals to prevent fungal and insect damage. No growth<br />

regulators were applied. Trial design: four plots of 50m<br />

length were planted with the 5 test varieties and the one<br />

comparator in a randomised block design. Measurements:<br />

taken from 50 plants selected at random from within each<br />

trial block.<br />

Prior Applications and Sales<br />

Country Year Current Status Name Applied<br />

Japan 1995 Applied ‘Bosadua’<br />

First sold in The Netherlands in November 1994.<br />

Description: Graeme Guy, F & I Baguley Plant and Flower Growers,<br />

Clayton South, VIC.<br />

‘Bosakin’ syn King Flair<br />

Application No: 97/227 Accepted: 26 Sep 1997.<br />

Applicant: H. & B.R. van den Bosch B.V., Rijnsburg, The<br />

Netherlands.<br />

Agent: Plants Management <strong>Australia</strong> Pty Ltd, Warragul,<br />

VIC.<br />

Characteristics (Table 31, Figure 29) Plant: woody,<br />

upright, width medium, medium height (average 141cm),<br />

branches present but mainly single stem, purple-red<br />

anthocyanin pigmentation present on the top exposed stem<br />

surface with branch endings being divided into three with<br />

terminal seed. Leaves: sessile, oval, approx. 8 x 5cm in size,<br />

upper surface dark green, lower surface light green,<br />

blistering obvious. Flowers: stalk length 1.2–2.5cm, green<br />

with brown-red anthocyanin colour, flower size 3.0–3.5cm,<br />

5 slightly asymmetrical sepals (calyx), 3 larger and 2<br />

smaller; calyx broadly elliptical; size 17 x <strong>12</strong>mm, 5 slightly<br />

asymmetrical golden-yellow petals, approx. 1.3cm long<br />

with an elliptical concave appearance. Stamens: outwardly<br />

extending with brown-orange bilobed anthers. Pistil<br />

(stigma, style and ovary): greenish yellow ovary, 3 yellow<br />

61

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