New Zealand Journal of Agricultural Research abstracts
Germplasm release1
‘G44’ tetraploid
Yorkshire fog (Holcus lanatus L.)
W. Rumball
AgResearch Grasslands
Private Bag 11 008
Palmerston North, New Zealand
bill.rumball@agresearch.co.nz
J. E. Miller
Grasslanz Technology Limited
Palmerston North, New Zealand
‘G44’ Yorkshire fog (Holcus
lanatus L.) was bred to
provide a tetraploid version of this grass species for grazing on soils
of lower fertility. Yorkshire fog is already widely spread through New
Zealand on such soils, but often forms a very dense mat that becomes
diseased or is unpalatable. Since the tetraploiding of other diploid
grass species has often improved their productivity, palatability, and
persistence (tetraploid ryegrasses are now extremely important in
agriculture) it was decided to apply this technique to Yorkshire fog.
Keywords Yorkshire fog; Holcus lanatus;
tetraploid; germplasm
1Each germplasm is the product of a completed or
significant breeding programme, but the breeders are not seeking Plant
Variety Rights. Germplasms are available free as “concept cultivars”,
intended as research materials or for further localised breeding
projects. Request for seed should be made to the corresponding author.
Germplasm releases are not fully refereed.
A05029; Received 1 July
2005; accepted 12 July 2005; Online publication date 13 September 2005
New Zealand Journal of Agricultural Research, 2005, Vol. 48:
417–418
0028–8233/05/4804–0417 © The Royal Society of New Zealand 2005
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