Abstract
I examined in the difference of resistance to the excessive soil moisture among wheat, barley, naked barley and their varieties. The result is as follows: (1) In resistance, wheat come first, the others being much weaker. Between barley and naked barley, the former was found greater than the latter. For example: the average value of (excessive soil moisture section)/(standard soil moisture section) in the weight of crops of the varieties of the three kinds was as follows: wheat 51%, barley 34%, and naked barley 25%. (2) The difference of resistance among their varieties was as clearly observed in the following order: naked barley, barley and wheat.