New Zealand Journal of Agricultural Research abstracts

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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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