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Plant and Cell Physiology, 1990, Vol. 31, No. 4 565-568
© 1990

Short Communication

Effects of a Very Low Magnetic Field on the Gravitropic Curvature of Zea Roots

Ryoichi Kato1

Advanced Research Laboratory, Hitachi, Ltd. Hatoyama, Saitama, 350-03 Japan

Caryopses with horizontally oriented primary roots of Zea mays L. (cv. Golden Cross Bantam 70), exposed to light, were incubated in magnetic fields of 50 µ gauss or 0.5 gauss (control) for 12 h. The gravitropic curvature of roots incubated in a field of 50 µ gauss was 37% larger than the control value, while the control roots grew more rapidly.

1 Present address: Biology Laboratory, Faculty of Education, Yamagata University, Yamagata, 990 Japan

(Received December 25, 1989; Accepted March 19, 1990)
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