The top row of each cultivar represents cotyledons exposed to 50-60 µE m2 s-1, while those in the lower row of each cultivar were exposed to 5-10 µE m2 s-1. Photos were taken 30 d after explanting. The light was provided by cool-white fluorescent tubes. Results may differ if different a different type of light is used. All photos are at the same magnification:
cv. Jack
cv. Fayette
For more information on light effects, see:
J. P. Ranch, L. Oglesby, and A. C. Zielinski. 1986. Plant regeneration from tissue cultures of soybean by somatic embryogenesis. In: Cell culture and somatic cell genetics of plants, edited by I. K. Vasil, New York:Academic Press. p. 97-110.
P. A. Lazzeri, D. F. Hildebrand, and G. B. Collins. 1987. Soybean somatic embryogenesis: