Changes in gibberellin levels in the flowering shoot of Phalaenopsis hybrida under high temperature conditions when flower development is blocked
The ability of exogenous gibberellin (GA) A3 to substitute for low temperatures in inducing flowering in Phalaenopsis hybrida under high temperatures suggests a similar role for endogenous GAs in normal (low temperature) development of the inflorescence and floral buds. Changes in endogenous GAs in shoot-tips (about 2.0 cm long) were examined when the potentially flowering shoot was 2-3 cm and 7-10 cm long, respectively. Treatments included warm control (30/25 °C day/night, non-flowering),...[Show more]
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|Source:||Plant Physiology and Biochemistry|
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