Photoperiod and temperature effects on late developmental stages of Stylosanthes guianensis

Trongkongsin K. and Humphreys L.R. (1988) Photoperiod and temperature effects on late developmental stages of Stylosanthes guianensis. Annals of Botany, 61 3: 283-288.

Author Trongkongsin K.
Humphreys L.R.
Title Photoperiod and temperature effects on late developmental stages of Stylosanthes guianensis
Journal name Annals of Botany   Check publisher's open access policy
ISSN 0305-7364
Publication date 1988
Sub-type Article (original research)
Volume 61
Issue 3
Start page 283
End page 288
Total pages 6
Subject 1804 Statistics, Probability and Uncertainty
2604 Applied Mathematics
3207 Social Psychology
3203 Clinical Psychology
2743 Reproductive Medicine
1110 Nursing
1108 Medical Microbiology
Abstract Seedlings of Stylosanthes guianensis var. guianensis cv. Cook and S. guianensis var. pauciflora cv. Bandeirante were defoliated and placed in a naturally lit glasshouse at 23/18 °C, 28/23 °C or 33/28 °C (day/night). After exposure to 14 h days and after floral induction with 30 cycles of 11 h, plants were allocated to 11, 12, 13 or 14 h during flowering and seed formation.Floral initiation occurred after 10-15 short-day cycles. Flower appearance was hastened by warm temperatures and spike number per plant at 20 d after flower appearance was negatively related to temperature and greater in Cook than in Bandeirante. Exposure to 13- and 14-h days reduced the continued differentiation of inflorescences in Bandeirante, and in Cook in warm temperatures. Floret number per spike was greatest at 23/18 °C and a higher proportion of florets aborted in Bandeirante at 33/ 28 °C. Variations in seed setting of the bi-articulate loment of Bandeirante are described. Highest potential seed yield occurred if after floral induction 11 or 12 h days were maintained with 23/18 °C or 28/23 °C temperatures.
Keyword Development
Flowering
Photoperiod
Stylosanthes guianensis
Temperature
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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Created: Tue, 26 Jul 2016, 04:28:51 EST by System User