溫度對矮仙丹生長與開花之影響

Effects of Temperature on the Growth and Flowering in Ixora williamsii cv. Sunkist

吳淑均(Shu-Chun Wu) ； 張育森(Yu-Sen Chang)

《中國園藝》 42卷2期 (1996/06) Pp. 123-130

https://doi.org/10.6964/JCSHS.199606.0123

摘要

於人工氣候室進行矮仙丹植株的不同溫度處理，結果顯示日／夜溫20/15℃最適於矮仙丹之花芽誘導，可使花序數增加。較高的溫度(30/25℃)有利於營養生長與花序發育；溫度太低(15/13℃)，植株易受寒害且花序易夭折。以低溫20/15℃誘導花序産生後再移至高溫30/25℃的植株比持續在較高溫（25/20℃或以上）生長的植株産生較多的花序，但每一花序之小花數較少，且開花戎間較短。枝條成熟度愈高的植株（修剪後先在室外生長153天的植株）在低溫誘導後，其花序數均比枝條成熟度較低（修剪後直接進行溫度處理）的植株多。

關鍵字

仙丹花 ； 溫度 ； 花芽誘導 ； 枝條成熟度

並列摘要

The temperature treatments in phytotron of Ixora williamsii cv. Sunkist plants indicated that the most suitable temperature for flower induciton was 20/15℃. Higher temperature (30/25℃) improved vegetative growth and inflorenscenses development. If the temperature was too tow (15/13℃), the plants would occur chilling injury and the inflorenscenes might abort. Plants treated with 20/15℃ for more than three months and then moved to 30/25℃ had mach mom inflorenscences bat had shorter flowering duration and fewer Carets of each inflorenscene than those continually growning in higher temperature (25/20℃or above). Plant shoots with higher maturity (Plants grown outdoors for 153 days after pruning.) formed much more inflorenscences than those with lower maturity (Plants instantly moved to phytotron after pruning.).

並列關鍵字

ixora ； temperature ； flower induction ； shoot maturity