Ethephon Can Overcome Seed Dormancy and Improve Seed Germination in Purple Coneflower Species Echinacea angustifolia and E. pallida
نویسندگان
چکیده
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 (ppm)] ethephon (2chloroethylphosphoric acid) to determine whether ethephon would sufficiently improve seed germination to be used by industry to improve the quality of echinacea seed. Application
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 ...
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