溫度對臺灣山蘇花生長之影響

Effect of Temperature on Growth of Asplenium nidus

葉德銘(Der-Ming Yeh) ； 李哖(Nean Lee)

《中國園藝》 34卷4期 (1988/12) Pp. 303-310

https://doi.org/10.6964/JCSHS.198812.0303

摘要

臺灣山蘇花葉序爲5:8 Fibonacci system，葉片生長呈非典型S型曲線。冬春生育緩慢，夏秋葉片發育快速。在人工氮候室日／夜溫30/25及25/20℃生育品質均佳，30/25℃葉面積增加最多，25/20℃葉背易成孢子囊氧。而在20/15℃下生育緩慢，且在葉片黃化及壞疽之寒害現象。低溫不利氮、鉀、鈣的吸收，極顯著抑制蕨葉生長，降低葉綠素含量，但對葉圓片之光合作用與呼吸作用影響不大。

關鍵字

臺灣山蘇花 ； 葉序 ； 葉面積 ； 溫度 ； 代謝 ； 礦物成分 ； 寒害

並列摘要

The effect of temperature on growth of Asplenium nidus L. (Bird's-nest fern) grown in lath house and phytotron at different day/night temperature of 30/25℃, 25/20℃ and 20/15℃ were studied, The phyllotaxy of the fern was 5:8 Fibonacci system. The development of frond exhibited non-typical S curve growth pattern.
The great amount of increase in frond area of the ferns were at temperature range of 20-30℃, the son formation were only found at 25/20℃. Growth was considerably low and chilling injury was found in fronds which showed the chlorotic and necrotic tissues at 20/15°C. Tissue analysis indicated that plants grown at lower temperature (20/15℃) contained lower nitrogen, potassium and calcium in fronds than plants grown at higher temperature (20-30℃).
Different temperature treatments did not have large affect else respiration and photosynthetic value of frond disc. Although their metabolic activity are low.

並列關鍵字

Asplenium nidus ； phyllotaxy ； leaf area ； temperature ； metabolism ； mineral composition ； chilling injury