text: frappe.ui.form.on("Material Request",{
  	production_plan_no: function(frm) {
  		$.each(frm.doc.items || [], function(i, v) {
  			frappe.model.set_value(v.doctype, v.name, "production_plan",frm.doc.production_plan_no)
  		})
  	}
  });
  