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Barba-Gonzalez R.,Centra de Investigacion y Asistencia en Tecnologia | Rodriguez-Dominguez J.M.,Centra de Investigacion y Asistencia en Tecnologia | Castaneda-Saucedo Ma.C.,University of Guadalajara | Rodriguez A.,University of Guadalajara | And 2 more authors.
Floriculture and Ornamental Biotechnology | Year: 2012

Members of the genus Polianthes L. are bulbous ornamentals in the Agavaceae, includes 15 species three varieties and a two cultivars native to Mexico. Polianthes tuberosa L. (Tuberose) is the only species cultivated as an ornamental cut flower in tropical and subtropical areas. The cultivation of tuberose occupies a prime position in the floriculture industry in countries such as Mexico, China, India, New Zealand and Taiwan. The Flower colour of all known cultivars of P. tuberosa is white; however, attempts have been made to introduce colors from related species. Besides its use as an ornamental, it is cultivated for use in manufacturing: as a source of fragrant essences in perfumery, to extract polysaccharides and glycosides; in addition P. geminiflora (Llave & Lexarza) Rose is utilized as a source of saponins for soap. The main diseases in this crop are caused by virus and it is affected by a coleoptera (Scyphophorus acupunctatus) whose larva feeds on the bulbs. In this review we will cover the uses, distribution, species, of the genus and the current state of tuberose breeding as a further reference for tuberose breeding programmes. Source


Tapia-Campos E.,Centra de Investigacion y Asistencia en Tecnologia | Rodriguez-Dominguez J.M.,Centra de Investigacion y Asistencia en Tecnologia | De Los Milagros Revuelta-Arreola M.,Centra de Investigacion y Asistencia en Tecnologia | Van Tuyl J.M.,Wageningen University | Barba-Gonzalez R.,Centra de Investigacion y Asistencia en Tecnologia
Floriculture and Ornamental Biotechnology | Year: 2012

Among hundreds of bulbous ornamental plants native to tropical and subtropical America, different genera from the Amaryllidaceae family such as Hymenocallis, Sprekelia and Zephyranthes present an enormous potential as ornamental crops. The genus Hymenocallis comprises over 60 species distributed from the north of Brazil to the south east of the United States; many of them are endemic to Mexico. The flowers are star shaped and white. The different species grow in a wide and contrasting diversity of habitats, near rivers and streams, on occasion completely submerged under water and sometimes in dry areas. The genus presents a complicated phylogeny, where in some cases it is difficult to distinguish species from hybrids. The genus Sprekelia is a monotypic genus native to Mexico; Sprekelia formosissima is cultivated as an ornamental pot plant in many countries. It presents solitary red flowers, their stems reaches up to 80 to 90 cm. The genus Zephyranthes comprises over 70 species distributed in tropical and subtropical America; different species are cultivated all over the world as an ornamental crop. The different species have beautiful flowers from white to yellow with various tints from lemon to sulphur and pink. In this review we will cover taxonomical, chromosomal and phenological aspects of these genera, with the aim of providing a reference of useful traits for breeding programs. Source

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