** Agribusiness company GrainCorp Ltd rises as much as 3.3 pct to A$8.16
** Expands grain origination footprint in Canada via JV with unit of Japanese agricultural cooperative Zen-Noh
** GrainCorp will have 50 pct stake in JV; plans to operate grain receival sites across Alberta and Saskatchewan in Canada
** Shares on track for their biggest percentage rise since Sept 16
** Stock third biggest percentage gainer on S&P/ASX 100 Index
