Water and high temperature stress effects on maize production

Ramadoss, Madhiyazhagan, Birch, Colin J., Carberry, Peter S. and Robertson, Michael (2004). Water and high temperature stress effects on maize production. In: T. Fischer, N. Turner, J. Angus, L. McIntyre, M. Robertson, A. Borrell and D. Lloyd, New Directions for a Diverse Planet: Proceedings of the 4th International Crop Science Congress. 4th International Crop Science Congress, Brisbane, Australia, (). 26 September-1 October 2004.


Author Ramadoss, Madhiyazhagan
Birch, Colin J.
Carberry, Peter S.
Robertson, Michael
Title of paper Water and high temperature stress effects on maize production
Conference name 4th International Crop Science Congress
Conference location Brisbane, Australia
Conference dates 26 September-1 October 2004
Proceedings title New Directions for a Diverse Planet: Proceedings of the 4th International Crop Science Congress
Place of Publication Gosford, N.S.W, Australia
Publisher The Regional Institute
Publication Year 2004
Sub-type Fully published paper
ISBN 1 920842 20 9
1-920842-21-7
Editor T. Fischer
N. Turner
J. Angus
L. McIntyre
M. Robertson
A. Borrell
D. Lloyd
Total pages 'not found'
Collection year 2004
Language eng
Formatted Abstract/Summary
Water stress-associated with high temperature is often considered to be a limiting factor in maize production in dry land regions. A field study was undertaken with two sowing dates and two row spacings to obtain different levels of water stress and incident temperature during crop growth in a deep Vertisol in south eastern-Queensland, Australia. The maize crop sown in October experienced extremely high air temperatures (41 o C) over several days at the time of anthesis (silking). Lower grain yield and associated grain numbers and harvest index were recorded in the October sowing compared to the later December sowing date, while soil water in both sowings and configurations was relatively low at anthesis (25-35% PAWC). The results from this study suggest that high air temperature (>38 oC) compounded by water stress occurring at the same time decrease kernel set under dry land environments.
Subjects E1
300205 Agronomy
620104 Other cereals
Keyword Maize
High temperature stress
Water deficit
Anthesis and grain set
Q-Index Code E1
Additional Notes This is an online poster paper available via Conference website.

 
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Created: Thu, 23 Aug 2007, 19:13:11 EST