the genus rebutia 1895—1981 - Free

Fig. 4 The germination of R. xanthocarpa f. salmonea has been plotted on a day to
day basis and the figures on the graph indicate the number of days
incubated.
Fig. 5 The curves obtained for H. pasacana and R. xanthocarpa f. salmonea are
shown. On successive days the maximum and minimum temperatures at
which 50% of maximum germination was obtained. The resulting U shaped
curves reflect the temperature span over which 50% germination occurred,
the rate of germination at different temperatures and the position of
maximum and minimum temperature at which 50% of maximum germination
was reached.
D
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