New Zealand Journal of Agricultural Research abstracts
Cultivar release
‘Grasslands HF1’ red clover (Trifolium
pratense L.)—a cultivar bred for isoflavone content
W. Rumball
R. G. Keogh
AgResearch Grasslands
Private Bag 11 008
Palmerston North, New Zealand
G. A. Sparks*
Grasslanz Technology Ltd
P.O. Box 60
Lincoln, New Zealand
*Deceased.
Abstract ‘Grasslands HF1’ red clover was bred from
the tetraploid cultivar ‘Grasslands Pawera’, with selection aimed at
increasing the concentration of the isoflavone group, formononetin plus
its glycoside ononin. Selection for two generations resulted in the
concentration in leaves being raised to about 50% above that of
‘Pawera’, when harvested from sown rows. The level of total isoflavones
increased by about 17%. The levels of three other isoflavone groups
were not changed significantly during the selection of ‘HF1’ from
‘Pawera’. However, comparisons with the cultivar ‘Grasslands G27’ bred
earlier from ‘Pawera’ for decreased level of formononetin, showed
larger and more significant differences between these two extreme
cultivars in the levels of most isoflavones.
Keywords ‘Grasslands HF1’ red clover; Trifolium
pratense L.; isoflavones; formononetin
A04089; Received 29 September 2004; accepted 13 May 2005; Online
publication date 4 August 2005
New Zealand Journal of Agricultural Research, 2005, Vol. 48:
345–347
0028–8233/05/4803–0345 © The Royal Society of New Zealand 2005
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