Fluctuations in Ethylene Formation and Flowering in Chenopodium Rubrum

Photoperiod Control of Gibberellin Levels and Flowering in Sorghum1

“…Ethylene has been shown to be produced in rhythmic, often diurnal pulses in a number of studies (Lipe and Morgan, 1973;Rikin et al, 1984;Morgan et al, 1990;Ievinsh and Kreicbergs, 1992;Machácková et al, 1997). However, the observations on GA 20 and GA 1 are the first, to our knowledge, in which the rhythmic levels of hormones have been observed in a context that suggests a possible linkage with both a physiological process (promotion of floral initiation) and a regulatory mechanism (phytochrome perception of daylength) (Talon et al, 1991;Foster and Morgan, 1995).…”