Stanning, P.J.2019-06-142019-06-14https://hdl.handle.net/2139/46940Please contact the West Indiana Division at the University of the West Indies,St.Augustine in order to view the full thesis. Contact: wimail@sta.uwi.eduPlease contact the West Indiana Division at the University of the West Indies,St.Augustine in order to view the full thesis. Contact: wimail@sta.uwi.eduFood crops -- Research -- Trinidad and TobagoField crops -- Trinidad and TobagoCrop yields -- Trinidad and TobagoField crops -- Economic aspects -- Trinidad and TobagoTheses