Engelmann W, Bollig I, Hartmann R
Arzneimittelforschung. 1976;26(6):1085-6.
Lithium ions lengthen the critical dark period in short-day plants, increase the period length of circadian rhythms in Kalanchoe plants, in the rodent Meriones and influence the activity rhythm of birds. In the case of the Kalanchoe rhythm, mainly the process of the petal opening is affected.
