Analysis of maize canopy development under water stress and incorporation into the ADEL-Maize model

Functional Plant Biology : FPB
Youhong SongJim Hanan

Abstract

Substantial progress in modelling crop architecture has been made under optimal watering conditions; however, crop production is often exposed to water stress. In this research, we develop methods for implementing the simulation of maize (Zea mays L.) canopy architectural development under water stress using data from a maize field trial in 2006-07. Data of leaf number, leaf and internode extension were collected using non-destructive and destructive sampling at 2-3 day intervals. Water stress reduced the extension rate of organs and, therefore, their final length, the reduction being greater as severity of water stress increased. The duration of extension of organs in most phytomers was not significantly affected by water stress. Also, the rate of extension during the linear phase responded linearly to fraction of extractable soil water. An existing 3-D architectural model ADEL-Maize was revised using relationships developed in this study to better incorporate effects of water stress on organ extension and production. Simulated canopy production under three water regimes was validated by comparing predicted final leaf and internode length, plant height and leaf area to independent observations. The analysis and simulation show...Continue Reading

References

Jan 14, 2003·Trends in Plant Science·François Tardieu
Apr 2, 2004·Annals of Botany·Hong-Ping YanMichael Dingkuhn
Dec 1, 2008·Functional Plant Biology : FPB·Mikolaj CieslakPrzemyslaw Prusinkiewicz
Sep 1, 2006·Functional Plant Biology : FPB·Ahmad M ManschadiGraeme L Hammer
Feb 1, 2007·Functional Plant Biology : FPB·Delphine LuquetMichael Dingkuhn

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Citations

Jan 22, 2011·The New Phytologist·Katrin Kahlen, Hartmut Stützel
Feb 2, 2021·Frontiers in Plant Science·Liang HeYouhong Song

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