New Zealand Journal of Agricultural Research abstracts
Identifying and discriminating among lucerne cultivars using plant
morphological characters
M. Dehghan-Shoar
PVR, Seed and Plant Certification Research Institute
Ministry of Jihad-e-Agriculture
Mardabad Rd, After Shaheid Fahmideh Sq.
Karaj
Islamic Republic of Iran
J. G. Hampton*
Bio-Protection and Ecology Division,
P.O. Box 84, Lincoln University
Canterbury, New Zealand
M. J. Hill
Seed Technology Institute Australia Pty Ltd
Gatton Campus, University of Queensland
Queensland 4343, Australia
*Author for correspondence
Abstract The use of morphological data obtained
from field (plot test) and glasshouse trials to identify and
discriminate among four Iranian and two New Zealand lucerne (Medicago
sativa L.) cultivars was investigated, following guidelines
established by the International Union for the Protection of New
Varieties of Plants (UPOV) for cultivar registration and the
Organisation for Economic Co-operation and Development (OECD) for seed
certification. Data were collected for terminal leaflet length, width
and ratio, angle of stem growth, date of first flowering, stem height
at first flowering, flower colour, cutting recovery height, and disease
scores. None of these characters were sufficient to identify or
discriminate among the six cultivars. The results indicate a need to
find cost-effective and efficient laboratory techniques to enhance the
assessment of distinctness of lucerne cultivars (UPOV) and for
determining cultivar purity for lucerne seed certification (OECD).
Keywords plot test; glasshouse; cultivar
registration; seed certification; morphological characters
A04083; Received 5 August 2004; accepted 18 April 2005; Online
publication date 30 May 2005
New Zealand Journal of Agricultural Research, 2005, Vol. 48:
271–276
0028–8233/05/4802–0271 © The Royal Society of New Zealand 2005
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