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Related to Morus: Morus alba, Thomas Morus
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



(mulberry), a genus of trees of the family Moraceae. The trees are 16–35 m tall. The crown is spherical, broadly ovate, and very dense. The bark is brown and cracked. The bare or pubescent ovate leaves have stipules that shed early; their edges are lobate or crenate. The plants are usually dioecious. The flowers are bisexual and gathered in catkins. The fruit—a succulent compound false drupe—measures 1–5 cm in length and is white, pink, dark violet, or almost black.

There are about 24 species, distributed in eastern and southeastern Asia, in southern Europe, in the southern parts of North America, in the northwestern parts of South America, and in parts of Africa. The USSR has four species, in the southern European portion and in Middle Asia. The mulberry tree is cultivated for its leaves, which are used to feed silkworms, and for its fruit. The fruits are sweet or tart, with a sugar content of at least 10 percent. They are eaten fresh or dried, or they are processed into wine. Mulberry wood is strong, resilient, and heavy; it is used as a building and woodworking material.

In the USSR the white mulberry (M. alba), M. bombycus, and M. multicaulus are raised for silkworm cultivation, and the black mulberry (M. nigra)is cultivated for fruit. In the USSR local forms, for example, Khasak, Kaichi, and Dzhir, are cultivated as forage crops, as are the new highly productive varieties SANIISh–5, SANIISh–6, SANIISh–7, SANIISh–14, SANIISh–15, SANIISh–17, Tadzhikskaia seedless, Irtyshar, Uzbekskaia, Pion-erskaia, Iveriia, Tbilisuri, Ukrainskaia–9, and Ukrainskaia–107. A significant portion of the feed plantings consists of hybrids. For spring feeding of mulberry silkworms the annual branches are cut annually. For summer and fall feedings, the upper third of new shoots is cut. Every four or five years the trees are given a year of rest.

Mulberry trees are drought resistant, relatively undemanding of soils, and salt tolerant. They are not resistant to flooding. Propagation is by seeds, grafts, and layers. The most widespread diseases are bacteriosis, Cylindrosporium disease, mildew, root rot, and curl. The most common insect pests are Apocheima cinerarius, Pseudocaccus comstocki, mole crickets (Gryllotalpa), chafers, wireworms, the mulberry longicorn beetle, and spider mites. (See alsoMULBERRY CULTIVATION.)


Derev’ia i kustarniki SSSR, vol. 2: Pokrytosemennye, Moscow-Leningrad, 1951.


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
The highest acidity was observed in Morus nigra genotype 'Gumushaci Karadut' as 1.62%, while the lowest acidity was in Morus alba genotype 'Angut 009' as 0.06%.
Orhan (2007) Chemical composition of white (Morus alba), red (Morus rubra) and black (Morus nigra) mulberry fruits.
Some physico-chemical characteristics of black mulberry (Morus nigra L.) genotypes from Northeast Anatolia region of Turkey.
(2003) Selection of mulberries (Morus spp.) naturally grown in Ispir and Pazaryolu districts.