Developing a tall fescue for reduced grass tetany risk

Mayland, H.F. and Sleper, D.A. (1993) Developing a tall fescue for reduced grass tetany risk. pp. 1095-1096. In: Proc. XVII International Grassland Congress. New Zealand-Palmerston North, 1993/02/08-21.

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Abstract

Tall fescue (Festuca arundinacea Schreb.) is an important forage grass,
and like other C3 grasses, has the potential to cause grass tetany in
grazing ruminants. Genetic variation in cation uptake by fescue was
exploited by selecting for high Mg and Ca relative to K concentration in
fescue. The grass tetany ratio. K/(Ca+Mg), was reduced about 18%
after 2 selection cycles. The mean Mg and K(Ca+Mg) values for 20 C1
plants, grown at pH 6.4, were-weakly related (r2=0.42 and 0.48) to those
of plants grown in calcareous sail pH 82. The P, Na, Mn, Fe, Cu, and
Zn concentrations were not affected by the selection process.

Item Type:	Conference or Workshop Item (Paper)
NWISRL Publication Number:	0834
Subjects:	Irrigated crops > Grass forage > Chemistry Mass Import - autoclassified (may be erroneous)
Depositing User:	Dan Stieneke
Date Deposited:	20 Nov 2010 21:57
Last Modified:	29 Nov 2016 18:51
Item ID:	1067
URI:	https://eprints.nwisrl.ars.usda.gov/id/eprint/1067