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Developing high yielding wheat for water limited environments in northern Australia

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Christopher, J. T., Borrell, A. K., Manschadi, A. M., Hammer, G. L. and Chapman, S. C. (2004) Developing high yielding wheat for water limited environments in northern Australia. In: "New Directions for a Diverse Planet", 4th International Crop Science Congress in conjunction with the 12th Australian Agronomy Conference and the 5th Asian Crop Science Conference, 26 September - 1 October 2004, Brisbane, Australia. Australian Society of Agronomy.



A novel strategy linking physiology with plant breeding, molecular biology and computer simulation modelling is outlined here which aims to enhance selection of high yielding wheats with superior performance under conditions of water scarcity for the northern, subtropical, winter cereals region of Australia. In previous research, a source of high yield and performance under dry conditions for the target region was identified in a drought resistant parent. A large population of fixed lines for molecular genetic studies has been developed using the drought resistant line and widely grown current Australian variety. A preliminary study comparing the parent varieties was conducted in the winter of 2003. The two varieties were similar in many aspects of phenology, morphology and physiology. However, several important traits were identified that likely contribute to higher grain mass and yield of the drought resistant parent, including differences in the number and dry mass of tillers and spikes during development and the ability of drought resistant line to retain green leaves longer during grain filling.

Item Type:Book Section
Subjects:Plant culture > Field crops > Wheat
Live Archive:02 Feb 2024 01:03
Last Modified:02 Feb 2024 01:03

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