Value of physiology for gardening. JUvenilnost

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Plants, too young for formation tsvetkov and fruits, are called juvenilnymi. Long juvenilnost wood plants often creates an economic problem. It defines time, during which the fruit-tree should grow to yield a harvest. Juvenilnost it is important and for lesovodov as it interferes with early formation of seeds on powerful coniferous trees. Sometimes leaves at juvenilnyh trees (for example, at Eucalyptus) differ under the form from leaves of an adult tree. Other plants (for example, citrus) in juvenilnyj the period can have prickles, and at the adult form they are not present. At last, at the third juvenilnye shanks easily take roots, and shanks of adult forms do not take roots at all. In certain cases juvenilnost consider from the point of view of gardening as advantage; for example, juve-nilnaja the juniper foliage is more desirable for the decorative purposes.

The Reasons juvenilnosti are not found out, but the certain role here, of course, is played by hormonal balance. (Hede helix) spraying gibberellinom the adult form causes partial return transformation in an ivy in juvenilnuju the form.

Probably, gibberelliny have any relation to juvenilnosti coniferous trees; for fuller finding-out of this question intensive researches are now conducted.