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Inhibition of growth and synchronised cell division in the shoot apex in relation to flowering in Silene
Susan Grose and R.F. Lyndon
Vol. 161, No. 4 (1984), pp. 289-294
Published by: Springer
Stable URL: http://www.jstor.org/stable/23377238
Page Count: 6
You can always find the topics here!Topics: Plants, Flowering, Cell division, Flowers, Plant growth, Calyx, Evocation, Mitotic index, Cell cycle, Cell growth
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When plants of Silene coeli-rosa (L.) Godron were induced by seven long days, then exposed to darkness for 48 h before being returned to short days, they went on to initiate flowers with a delay of about 2 d. The synchronisation of cell division which normally occurs before flower initiation was suppressed, showing that it is not essential for flowering. Periods of darkness of up to 240 h inhibited apical growth and leaf initiation but did not prevent eventual flowering in short days. The commitment of the apex to flower was therefore maintained while apical growth was inhibited.
Planta © 1984 Springer