抄録
1. The experiment was carried out to make clear the differences of resistance to pottassium defficiency on nine wheat varieties by split plot design with four blocks. The results obtained were as follows: a) Height and leaf-width decreased, but the proportion of height and leaf-width didn't change. b) There were differences between varieties and treatments, but the interaction was recognized only in the head-numbers. c) The resistance orders were as follows: North No.16-NOo.69, 70, 26, Fukokuibaraki No.1, Norin No.50, 9, 44-Shirasayaibaraki No.1. d) Head numbers type was weak resistant to potassium defficiency, while head-weight type hrs strong one.
