Strawberries and cucumbers have been ripened in a forcing frame.
The flowers appear early in spring, and the fruit is ripened about the end of September.
The fruit of the peach is produced on the ripened shoots of the preceding year.
Large quantities of fruits - apples, pears, quinces, peaches, nectarines, apricots, grapes and melons - were exported by special trains to central Europe, where the Turkestan crop was received a short time before the south European supplies ripened.
The advantage hitherto obtained from its use has consisted in the rapidity with which flowers have been formed and fruits ripened under its influence, circumstances which go towards compensating for the extra cost of production.