Results 181 to 190 of about 2,877 (225)

Somaclonal Variation in Potato

1990
Potato (Solanum tuberosum) has been under cultivation by man for some 8000 years. At present, it ranks fifth amongst the most important food crops in the world. Its origin lies probably in the Andes, where wild potatoes are still widespread, although no species has yet been identified as the diploid ancestor. Most present cultivars are tetraploid (2n =
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Somaclonal Variation in Carnations

1990
The carnation (Dianthus caryophyllus L.) is a member of the Caryophyllaceae family. It is a semi-hardy perennial with branching stems, bearing linear, glaucous leaves in opposite and decussate pairs. Each stem forms a terminal flower and the inflorescence is a loose cyme.
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Somaclonal Variation in Rice

1990
Rice is the staple food of more than half of the world’s population, and its present cultivation spans from latitude 53° N to 40° S (Lu and Chang 1980), from -23 to +7000 feet above sea level. It is cultivated under various conditions, including upland, deep water, and soils with pH 3.5 to 9.5 (Khush 1984). There are 22 species in the genus Oryza, most
Z.-X. Sun, K.-L. Zheng
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Somaclonal Variation in Sugarbeet

1990
The sugarbeet (Beta vulgaris L.) is an important world food crop in temperate and subtropical climates. On the international trade market its principle product, sugar, is an extremely important commodity, and it is also a significant industrial crop in some countries.
J. W. Saunders, W. P. Doley, J. C. Theurer, M. H. Yu   +3 more
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Somaclonal Variation in Rauwolfia

1996
Rauwolfia (Apocynaceae family) species are distributed in tropical regions of Africa, Central and South America, Australia, and Southeast Asia. Altogether, the genus covers 140 species, most of which are shrubs, less frequently trees up to 18–21 m in height (R. macrophylla Stapf and R. caffra Sond), or intermediate forms up to 6 m high (R.
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Somaclonal Variation in Fuchsia

1990
In the wild, the genus Fuchsia (Onagraceae) comprises about 100 species, living mainly in the mountains of South and Central America, with a small section in the Pacific. Some species were introduced into Europe at the end of the 18th century as garden plants.
J. Bouharmont, P. Dabin
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Somaclonal Variation in Strawberry

1990
The genus Fragaria can be divided into about a dozen species which can be grouped into four classes with respect to their ploidy level, taking seven chromosomes as the basic number (Staudt 1953 ; Darrow 1966; Fadeeva 1975). The first group comprises diploid species (2n = 2x = 14), among which F. vesca L.
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Somaclonal Variation in Haworthia

1990
Plants of the genus Haworthia belonging to the tribe Aloineae of the Liliaceae are distributed in Southeast Africa and Madagascar; they have bimodal chromosomes, namely large (L) and small (S) chromosomes (2n = 14; 8L + 6S, Sato 1942). The large chromosomes (L1 to L4) can be identified by their respective homologs, whereas the identification of the ...
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Somaclonal Variation in Cereals

1990
Somaclonal variation has been extensively documented (Larkin and Scowcroft 1981; Larkin et al. 1985, Sala and Biasini 1985; Tonelli 1985; Brown and Lorz 1986; Ahloowalia 1986). This variation seems not to be species- or organ-specific, but ubiquitous among regenerated plants, and appears to cover a wide spectrum of morphological, physiological, and ...
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Integrative oncology: Addressing the global challenges of cancer prevention and treatment

Ca-A Cancer Journal for Clinicians, 2022
Jun J Mao,, Msce, Lorenzo Cohen, Karen M Mustian   +2 more
exaly