New Zealand Journal of Agricultural Research abstracts
Breeding system in Trifolium glanduliferum (Fabaceae)
Ramakrishnan M. Nair
David M. Peck
Trevor D. Rowe
South Australian Research & Development Institute (SARDI)
GPO Box 397
Adelaide
SA 5001, Australia
Ian S. Dundas*
School of Agriculture
Food and Wine
The University of Adelaide
Waite Campus
PMB 1
Glen Osmond
SA 5064, Australia
Kate Dowling
Public Health Research Unit
Women’s and Children’s Hospital
72 King William Rd
North Adelaide
SA 5006, Australia
*Author for correspondence: ian.dundas@adelaide.edu.au
Abstract Trifolium glanduliferum
Boiss. var. nervulosum
(Boiss. & Heldr.) Zoh., glandular (or gland) clover is an annual
pasture species, with Mediterranean origin, recently introduced into
Australia. The species was previously reported as self-pollinating.
Studies with four accessions originating from Israel clearly suggest
that Trifolium glanduliferum is a highly
self-incompatible species, which requires vectors including bees to
ensure pollination. Unpollinated bagged and hand tripped florets showed
no signs of pollen tube growth and no seed set, while cross-pollinated
florets showed pollen tube growth and gave high seed set. A high
pollen:ovule ratio suggested that the species is between facultative
outcrossing and obligate outcrossing.
Keywords gland clover; pollination;
self-incompatibility;
selfing rate; Trifolium glanduliferum
A07007; Online publication date 15 October 2007; Received 24 January
2007; accepted 7 August 2007
New Zealand Journal of Agricultural Research, 2007, Vol. 50:
451–456
0028–8233/07/5004–0451 © The Royal Society of New Zealand 2007
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