AUTHOR=Iida Hidetoshi TITLE=Mugifumi, a beneficial farm work of adding mechanical stress by treading to wheat and barley seedlings JOURNAL=Frontiers in Plant Science VOLUME=5 YEAR=2014 URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2014.00453 DOI=10.3389/fpls.2014.00453 ISSN=1664-462X