LIBRO-CONGRESO-CITRUS

S17O01
New citrus variety evaluation in Australia 2005-2012
Sanderson G. 1 , Creek A. 2 , Lacey K. 3 , and Wallace M. 4
1Dareton Primary Industries Institute (DPII), NSW Department of Primary Industries, Australia; 2Centre for Irrigated Agriculture,
Griffith (CIA), NSW Department of Primary Industries, Australia; 3Intensive Plant Research Branch (IPR), West Australian Department
of Food and Agriculture, Australia; and 4Orchard Monitoring Services (OMS), Citricare, Australia. graeme.sanderson@dpi.nsw.gov.au
Evaluating new citrus varieties is a national project in Australia led by the New South Wales Department
of Primary Industries (NSW DPI) and is a continuance of the Australian Citrus Improvement Program. This
long term program is an industry driven initiative aimed at maintaining productivity and profitability. A
cooperative agreement was developed between NSW DPI, Horticulture Australia Ltd (HAL), Auscitrus and
local variety managers of Plant Breeders Rights (PBR) varieties to undertake independent evaluation from
2005 to the present. Thirty one new varieties were included in the evaluation and their performance
assessed in the major citrus growing regions of Australia. The varieties are predominantly mandarin and
mandarin hybrids and 20 of the 31 have PBR protection. Varieties have been progressively released from
Australian Post Entry Plant Quarantine with the final variety being field established in November 2011.
Evaluation activities include standard fruit quality and yield determination as well as providing larger
volumes of fruit from topworked trees to approved agents for test marketing. Evaluation site visits to view
PBR varieties are organised in conjunction with variety managers and fruit displays provided in the major
citrus regions of Australia. New variety managers are encouraged to become part of the program and seven
new varieties were included in 2011. The Australian Citrus Industry’s ‘Strategic Research and Development
Plan 2012-2017’ recognises the need for continued evaluation of new citrus introductions and on-going
funding will be sort from Horticulture Australia Ltd to continue the program.
S17O02
‘Sweet Sicily’ and ‘Early Sicily’, two new triploids from the program of CRA-ACM, Centro di- Ricerca
per l’Agrumicoltura e le Colture Mediterranee, Acireale, Italy
Russo G., Reforgiato Recupero G., Recupero S., and Pietro Paolo D.
Centro di Ricerca per l’Agrumicoltura e le Colture Mediterranee (CRA-ACM), Italy. giuseppe.russo@entecra.it
The development of triploid hybrids by crossing a monoembryonic 2x female parent with a 4x male parent
has been the successful breeding strategy carried out by the CRA-ACM since 1978. Through this strategy
hybrids issued in the past allowed the obtainment of seedless fruits, in some cases pigmented, of good
size, mature in different periods. In 2011 other two promising hybrids, ‘Sweet Sicily’ and ‘Early Sicily’, due
to their positive characteristics, were released. The former was obtained by the cross ‘Comune´ clementine
X 4x ‘Tarocco’ sweet orange, the latter by the cross ‘Oroval’ clementine X 4x ‘Tarocco’ sweet orange. The
fruits of these hybrids, very early in ripening time (mid-November) showed a fresh market suitable fruit size,
excellent organoleptic properties and a typical taste intermediate between the clementine and ‘Tarocco’
orange.
S17O03
Comparison of performance of different late-maturing navel selections around the world.
Rabe E. 1 , Turner P. 2 , and Chavarria J. 3
1BiogoldUSA and Paramount Citrus, California, USA; 2Biogold International, South Africa; and 3BiogoldEM, Spain.
erabe@paramountcitrus.com
During the late 1980’s and early 1990’s, a number of late navel selections of Australian origin were
commercialized around the world. In addition to the earlier-discovered and distributed ‘Lane Late’
selection, the newer Australian selections included: ‘Barnfield’, ‘Powell’, ‘Autumn Gold’, ‘Chislett’ and a
host of other’s, most originating from the ‘Lane Late’. Data including acreage levels, yield, internal quality,
pick dates and general industry perspectives from various production regions will be presented. Regions
XII INTERNATIONAL CITRUS CONGRESS 2012 - 305
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