The effect of gibberellic acid and guanosine monophosphates on extension growth, leaf production and flowering of Impatiens balsamina

Sharma, Reeta ; Kumar, Surinder ; Nanda, K. K. (1978) The effect of gibberellic acid and guanosine monophosphates on extension growth, leaf production and flowering of Impatiens balsamina Physiologia Plantarum, 44 (4). pp. 359-364. ISSN 0031-9317

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Official URL: http://onlinelibrary.wiley.com/doi/10.1111/j.1399-...

Related URL: http://dx.doi.org/10.1111/j.1399-3054.1978.tb01637.x

Abstract

Gibberellic acid (GA3) increases the height of Impatiens balsamina under both 8- and 24-h photoperiods. The height also increases with all guanosine monophosphates (GMPs) under 8-h photoperiods but only with 5'-GMP under 24-h photoperiods. GA3 as well as GMPs increase the number of leaves under 8-h but not under 24-h photoperiods. GA3 as well as GMPs induce floral buds under strictly non-inductive photoperiods and increase the number of floral buds under 8-h photoperiods. The floral bud initiation occurs earlier when cGMP is used in combination with 100 mg/l GA3.

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