Modeling the Effect of Environmental Factors on sorghum Growth and Development

    Huda, A K S and Sivakumar, M V K and Virmani, S M and Seetharama, N and Singh, S and Sekaran, J G (1984) Modeling the Effect of Environmental Factors on sorghum Growth and Development. In: Agrometeorology of SOrghum and Millet in the Semi-Arid Tropics: Proceedings of the International Sysmposium, 15-20 Nov. 1982, ICRISAT Patancheru, India.

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    Abstract

    The yrelds ofrarnledsorghumrn the semr-arid regions in general are low and vary from year to year. An understanding of the interactions between the physical environment and the genotype is important to Increase and stabilize production of sorghum. This information, through the systems-simulation approach could be used to model sorghum growth and development. The gran sorghum growth simulation model-SORGF-was used as the basis to evaluate crop weather interactions. A multilocation study was conducted in India over a period of 4 years to evaluate the growth and development of selected sorghum genotypes of varying maturity durations. Preliminary results suggested that several subroutines of the SORGF model needed modrbcatrons to simulate accurately the effect of environmental factors. Algorithms of the SORGF model dealing with light interception, phenology, leaf senescence, sol1 water, and total dry matter accumulalron and its partitioning to grain have been revised The improvement resulting from the revisions made rn each of the above subroutrnes are compared wrlh the freld data and the simulationes sults olthe ongrnalSORGF model The use of the SORGF model for rrrrgatron scheduling and lrrst-order screenrng of envrronments lor sorghum producoon are illustrated

    Item Type: Conference or Workshop Item (Paper)
    Divisions: UNSPECIFIED
    CRP: UNSPECIFIED
    Subjects: Mandate crops > Sorghum
    Depositing User: Library ICRISAT
    Date Deposited: 05 Dec 2011 11:05
    Last Modified: 05 Dec 2011 11:05
    URI: http://oar.icrisat.org/id/eprint/4341
    Acknowledgement: UNSPECIFIED
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