Simulating root system development of short-duration pigeonpea

Devi, Gayatri 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. 67-78.

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Length and weight of pigeonpea roots were measured weekly in different soil layers and compared wi t h estimates obtained f rom a root simulat ion model using dai ly cl imat i c data, soil physico-chemical properties and dry mat ter allocation to roots. Dai l y moisture content and temperature at different soil depths were wel l simulated using sub-routines f rom the CERESMaize model . Dai l y allocation of dr y mat ter to roots was calculated f rom logistic functions f i t ted to the growth data for shoots and roots. Al though root length and weight tended to be underestimated by the model , regressions between measured and simulated root growt h were highly significant so that the model could, wi t h a few modi f icat ions, be used to predict root system development

Item Type: Article
Author Affiliation: International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) ,Patancheru, Andhra Pradesh 502 324, India
Subjects: Crop Improvement
Divisions: Pigeonpea
Depositing User: Mr T L Gautham
Date Deposited: 06 May 2011 10:46
Last Modified: 06 May 2011 10:47
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