Simulating Root System Development of Short-duration Pigeonpea

    Devi, G and Ito, O and Matsunaga, R and Tobita, S and Rao, T P and VidyaLakshmi, N and Lee, K K (1996) Simulating Root System Development of Short-duration Pigeonpea. Experimental Agriculture, 32 (1). pp. 67-68. ISSN 1469-4441

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    Abstract

    Length and weight of pigeonpea roots were measured weekly in different soil layers and compared with estimates obtained from a root simulation model using daily climatic data, soil physico-chemical properties and dry matter allocation to roots. Daily moisture content and temperature at different soil depths were well simulated using sub-routines from the CERES-Maize model. Daily allocation of dry matter to roots was calculated from logistic functions fitted to the growth data for shoots and roots. Although root length and weight tended to be underestimated by the model, regressions between measured and simulated root growth were highly significant so that the model could, with a few modifications, be used to predict root system development.

    Item Type: Article
    Divisions: UNSPECIFIED
    CRP: UNSPECIFIED
    Subjects: Mandate crops > Pigeonpea
    Depositing User: Mr Charan Sai Ch
    Date Deposited: 28 Oct 2011 13:30
    Last Modified: 28 Oct 2011 13:30
    URI: http://oar.icrisat.org/id/eprint/3295
    Official URL: http://dx.doi.org/10.1017/S0014479700025874
    Projects: UNSPECIFIED
    Funders: UNSPECIFIED
    Acknowledgement: UNSPECIFIED
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