Correlations Between Changes in the Amount of Endogenous Phytohormones and Flowering in the Safflower ( Carthamus tinctoriusL.)

Authors : Hasan BAYDAR

Pages : 421-426

View : 23 | Download : 11

Publication Date : 1998-12-01

Article Type : Research Paper

Abstract :Changes in the amounts of endogenous gibberellic acid insert ignore into journalissuearticles values(GA 3 );, indole-3-acedic acid insert ignore into journalissuearticles values(IAA); and abscisic acid insert ignore into journalissuearticles values(ABA); during different growth periods of the safflower were studied by high-perfor-mance liquid chromatography insert ignore into journalissuearticles values(HPLC);. A correlation was confirmed between low levels of GA 3 , as well as high levels of ABA, and the initia-tion of flowering. IAA reached its maximum level during bud formation, indicating that IAA might play an active role in the differentiation of bud formation. Changes in the amount of endogenous phytohormones in flower buds located in different parts of the plant indicate that ABA in particular plays an important role in the formation of flowering order in saf-flower.
Keywords : Carthamus tinctorius L, flowering buds, phytohormones, HPLC