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

• Published in: Annals of botany Vol. 53; no. 2; pp. 207 - 212
• Main Authors: ISON, R. L., HUMPHREYS, L. R.
• Format: Journal Article
• Language: English
• Published: London Oxford University Press 01.02.1984; Academic Press Inc; Academic Press
• Subjects: Agriculture; Agronomy. Soil science and plant productions; Biological and medical sciences; Critical temperature; Crop harvesting; Economic plant physiology; Flowering; Flowers; Fundamental and applied biological sciences. Psychology; Germination and dormancy; Growth and development; guianensis; High temperature; Low temperature; Natural and artificial inductions; Photoperiod; Plant physiology and development; Plants; short-day plant; Stylosanthes guianensis var; temperature; Temperature control; Leguminosae; Dicotyledones; Angiospermae; Temperature effect; Flowering; Spermatophyta; Photoperiod; Stylosanthes
• ISSN: 0305-7364; 1095-8290
• DOI: 10.1093/oxfordjournals.aob.a086681

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).