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Day and Night Temperature Control of Floral Induction in Stylosanthes guianensis var. guianensis cv. Schofield

R. L. ISON and L. R. HUMPHREYS
Annals of Botany
Vol. 53, No. 2 (February 1984), pp. 207-211
Published by: Oxford University Press
Stable URL: http://www.jstor.org/stable/42757226
Page Count: 5
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Day and Night Temperature Control of Floral Induction in Stylosanthes guianensis var. guianensis cv. Schofield
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Abstract

Floral initiation in seedlings of Stylosanthes guianensis var. guianensis cv. Schofield grown at a photoperiod marginal for flowering (12—11·75 h) was promoted by a combination of low day (25 °C) and low night (16 or 21 °C) temperatures, and completely inhibited by a 35 °C day temperature. Additionally, earliness of floral initiation under naturally decreasing daylength was negatively related to temperature regime over the range 35/30 to 20/15 °C (day/night).

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