Yield, nutritive value, and phenotypic variability of tall wheatgrass grown in a nonsaline environment

Title

Yield, nutritive value, and phenotypic variability of tall wheatgrass grown in a nonsaline environment

Author

Smith, K.F.; Lee, C.K.; Borg, P.T.; Flinn, P.C.; (Victorian Department of Agriculture, Horsham. Pastoral and Veterinary Institute)

Keywords Elymus elongatus|Nutritive value|Yields|Phenotypic variation|Cultivars|Tall wheatgrass
URL http://www.publish.csiro.au/paper/EA9940609.htm
Abstract

The phenotypic variation of 10 important botanical traits and 2 traits related to herbage quality was measured in tall wheatgrass cv. Tyrrell. Five certified lines of Tyrrell were compared among themselves and with cvv. Largo and San Jose. Significant differences, both between cultivars and within lines of Tyrrell, were observed for several traits. The phenotypic variability measured confirms that Tyrrell is distinct from its progenitor, Largo, and has sufficient variability to make it suitable for use in a selection program. In a second experiment the yield and nutritive value of Tyrrell, Largo, and San Jose were compared with perennial ryegrass (Lolium perenne) cv. Ellett and tall fescue (Festuca arundinacea) cv. Demeter. There were no differences between cultivars for either total dry matter yield or total yield of digestible dry matter. Dry matter digestibility of tall wheatgrass did not fall below 60 percent. The results suggest that with appropriate management, tall wheatgrass can produce nutritious forage in quantities sufficient for animal production systems, particularly as a special purpose summer pasture.

Publish Date 1st January 1994
Resource Code AG199500398
ISSN 08161089
Delivery Link http://www.nla.gov.au/copiesdirect/
Delivery Email docss@nla.gov.au
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Source AANRO