New Zealand Journal of Agricultural Research abstracts
Effect of soil pH on the distribution of Danthonia species on the
tablelands of central and southern New South Wales
P. M. DOWLING1
D. L. GARDEN2
D. A. EDDY2
D. I. PICKERING1
1New South Wales Agriculture
Agricultural Research & Veterinary Centre
Forest Road
Orange, NSW 2800, Australia
2New South Wales Agriculture
P.O. Box 1600
Canberra, ACT 2601, Australia
Abstract A survey of 126 grazed pastures on the
central, southern, and Monaro tablelands was conducted during spring-summer of
1991/92 to determine the extent of Danthonia species and factors
influencing their distribution. Seventeen species were found. The presence of
D. racemosa, D. caespitosa, D. richardsonii, and
D. linkii was associated with higher pH soils, whereas D. pilosa,
D. eriantha, D. duttoniana, D. setacea, and D.
monticola were more common on lower pH soils. The presence of D. laevis
and D. carphoides appeared to be independent of pH. Further
examination of the variation in the two most widely occurring species, and
those species favoured by higher soil acidity, should provide a useful basis
for deciding on any future selection programme.
Keywords Danthonia; soil pH; domestication
New Zealand Journal of Agricultural Research, 1996, Vol. 39: 619-621
0028-8233/96/3904-0619 $2.50/0 (c) The Royal Society of New Zealand
1996
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