The average figure I got for maize root weight at harvest was 983 kg/ha for the varieties CG4141 and R201. This was under dryland condition with a more than average rainfall season for a semi-arid area.
 
 
Regards,
 
Francis Mugabe
Chiredzi Research Station
P.O.Box 97
Chiredzi
Zimbabwe.
Chiredzi
 
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