Journal article
Levels of total phosphorus, phytate-phosphorus, and phytase activity in three varieties of Western Australian wheats in response to growing region, growing season, and storage
Australian Journal of Agricultural Research, Vol.53(12), pp.1361-1366
2002
Abstract
Two experiments were conducted to examine varietal, environmental, and storage influences on total phosphorus (P), phytate-P content, and phytase activity in a cohort of wheats grown in Western Australia. In Expt 1, a 3 x 3 x 2 factorial experiment examined the influence of wheat variety (Arrino, Stiletto, Westonia), growing region (high, medium, low rainfall zone), and harvest year (1999, 2000). In Expt 2, the effect of storage for 6 months on the P composition of the wheats was examined. The total P and phytate-P concentrations ranged from 1.66 to 4.48 g/kg (DM) and from 1.05 to 3.32 g/kg (DM), with mean values of 2.64 (s.e. ±0.142) and 1.79 g/kg (s.e. ±0.127), respectively. Phytase activity ranged from 327 to 811 phytase activity units (FTU)/kg, with a mean value of 563 FTU/kg (s.e. ±29.6). Phytate-P content was significantly correlated with total P concentration (r=0.97, P<0.001). Harvest year tended to influence the total P and phytate-P content (P = 0.079 and P = 0.082, respectively) of the wheats, whereas wheat variety had a significant effect on the phytase activity (P < 0.05). Precipitation level (mm) was positively correlated to total Pand phytate-P contents (P < 0.05). Storage for 6 months after harvest did not change the P content of wheat.
Details
- Title
- Levels of total phosphorus, phytate-phosphorus, and phytase activity in three varieties of Western Australian wheats in response to growing region, growing season, and storage
- Authors/Creators
- J.C. Kim (Author/Creator)B.P. Mullan (Author/Creator)P.H. Selle (Author/Creator)J.R. Pluske (Author/Creator)
- Publication Details
- Australian Journal of Agricultural Research, Vol.53(12), pp.1361-1366
- Publisher
- CSIRO
- Identifiers
- 991005540617407891
- Copyright
- (c) CSIRO
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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InCites Highlights
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- Collaboration types
- Industry collaboration
- Domestic collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.51 Dairy & Animal Sciences
- 3.51.208 Poultry Nutrition
- Web Of Science research areas
- Agriculture, Multidisciplinary
- ESI research areas
- Agricultural Sciences