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Keywords:

  • Plant competition;
  • simultaneous bilateral models;
  • vector processes;
  • maximum likelihood

Abstract

A maximum likelihood procedure is developed to estimate the dependence relations between plants at equal distances along a row, by fitting simultaneous bilateral models to the observations. Where there is more than one characteristic measured on each plant, a simultaneous bilateral vector model can be fitted by maximum likelihood procedures. The latter model also applies when one characteristic is measured on each plant in a two-dimensional planting array where interplant distances within each row are equal but interrow spacing varies. The estimation is particularly suited to the small sample situation.