Ethylene-, Light-, and Prechill-enhanced Germination of Echinacea angustifolia Seeds
نویسندگان
چکیده
منابع مشابه
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 ...
متن کاملEchinacea 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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Salicylic acid (SA) inhibited germination of cocklebur (Xanthium pennsylvanicum Wlr), lower seeds, which are completely after-ripened and nondormant. SA also inhibited ethylene production during a pre-germination period of the seeds. Exogenous ethylene overcame the inhibtion of the seed germination by SA. Moreover, SA reduced respiration in pre-germinating whole seeds as well as excised axial...
متن کاملEthephon 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...
متن کاملEndophytic and rhizospheric bacterial communities isolated from the medicinal plants Echinacea purpurea and Echinacea angustifolia
In this work we analyzed the composition and structure of cultivable bacterial communities isolated from the stem/leaf and root compartments of two medicinal plants, Echinacea purpurea (L.) Moench and Echinacea angustifolia (DC.) Hell, grown in the same soil, as well as the bacterial community from their rhizospheric soils. Molecular PCR-based techniques were applied to cultivable bacteria isol...
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ژورنال
عنوان ژورنال: Journal of the American Society for Horticultural Science
سال: 1994
ISSN: 0003-1062,2327-9788
DOI: 10.21273/jashs.119.4.853