Phytochrome and the Inductive Dark Period in Coleus
Author(s) -
Ruth Halaban,
William S. Hillman
Publication year - 1970
Publication title -
plant physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.554
H-Index - 312
eISSN - 1532-2548
pISSN - 0032-0889
DOI - 10.1104/pp.46.5.757
Subject(s) - coleus , period (music) , phytochrome , botany , biology , physics , red light , acoustics
Coleus blumei x C. frederici plants, the same clone used at Princeton (3), were propagated by cuttings and grown in a growth chamber under continuous illumination by cool white fluorescent lamps and incandescent bulbs (about 1000 ft-c) at an air temperature of 25 + 1 C. The experimental plants were grown with their roots in 125-ml Erlenmeyer flasks filled with nutrient solution consisting of 1.2 g of Hyponex (Hydroponic Chemical Co., Copley, Ohio) per liter of distilled water. The flasks were refilled with distilled water twice a day at about 0830 EST (Eastern Standard Time) and 1530 EST.
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