Abstract

Summary The effects of 2-chloroethyl-trimethyl ammonium chloride (CCC) and abscisic acid (ABA) on the in vitro growth and development of young floral buds of tomato were studied. Both CCC (10 −6 M) and ABA (10 −8 M) inhibited stamen growth without affecting the growth of other floral organs. Higher concentrations of the two regulators were inhibitory to the growth of all floral organs. CCC and ABA also induced abnormalities in stamen development, and reduced the number of flowers reaching maturity. This study reinforces the earlier observations that gibberellins are essential for the development of stamens and growth of all floral organs in tomato.

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