Ethephon Promotes Germination of Echinacea angustifolia and E. pallida in Darkness

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Ethephon Promotes Germination of Echinacea angustifolia and E. pallida in Darkness.

Seeds from five lots each of Echinacea angustifolia DC, and E. pallida (Nutt.) Nutt. were germinated in a growth chamber in light (40 μmol·m(-2)· s(-1)) or darkness at 25 °C for 16 to 20 d after soaking in 1 mM ethephon or water for 10 min, or moist stratification at 4 - 6 °C for two weeks. Either light or ethephon promoted seed germination of E. angustifolia and E. pallida, in comparison with ...

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Ethephon Can Overcome Seed Dormancy and Improve Seed Germination in Purple Coneflower Species Echinacea angustifolia and E. pallida

Low and erratic seed germination presents a major production problem in the medicinal plants that collectively are called echinacea or purple coneflower (Echinacea angustifolia and E. pallida). In this study, nine seed lots of each E. pallida and E. angustifolia from a wide variety of commercial sources and germplasm collections were collected and treated with a solution of 1.0 mM [144.5 mg·L-1...

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Micropropagation of Echinacea angustifolia, E. pallida, and E. purpurea from Stem and Seed Explants

Micropropagation of three Echinacea species, E. angustifolia DC., E. pallida Nutt., and E. purpurea Moench., was investigated as a potential means of germplasm preservation of species faced with overcollection in the wild and rapid clonal propagation of elite individuals with unique medicinal or ornamental properties. Very high contamination rates occurred with shoot-tip explants but not with n...

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Echinacea species (Echinacea angustifolia (DC.) Hell., Echinacea pallida (Nutt.) Nutt.,Echinacea purpurea (L.) Moench): a review of their chemistry, pharmacology and clinical properties.

This paper reviews the chemistry, pharmacology and clinical properties of Echinacea species used medicinally. The Echinacea species Echinacea angustifolia, Echinacea pallida and Echinacea purpurea have a long history of medicinal use for a variety of conditions, particularly infections, and today echinacea products are among the best-selling herbal preparations in several developed countries. M...

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Echinacea angustifolia: An Emerging Medicinal*

The genus Echinacea (Asteraceae) is native to North America and consists of nine species (McGregor 1968). E. angustifolia DC, a narrow leafed species, is distributed on barrens and dry prairies from Minnesota to Texas, Oklahoma, Kansas, Nebraska, Iowa, the Dakotas, Colorado, Wyoming, Montana, Saskatchewan, and Manitoba (McGregor 1968; Kindscher 1989; Foster 1991). E. angustifolia grows lower an...

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ژورنال

عنوان ژورنال: HortScience

سال: 2004

ISSN: 0018-5345,2327-9834

DOI: 10.21273/hortsci.39.5.1101