香楠種子儲藏性質的再探討

Further Investigation of Seed Storage Behaviour of Machilus zuihoensis Hay

簡慶德(Ching-Te Chien) ； 莊身田(Shen-Tien Juang) ； 林讚標(Tsan-Piao Lin)

《林業試驗所研究報告季刊》 9卷3期 (1994/09) Pp. 271-274

https://doi.org/10.7075/BTFRI.199409.0271

摘要

利用飽和鹽溶液維持環境於一定的相對濕度下，進行種子含水率和儲藏溫度對香楠種子活力的試驗。結果顯示儲藏種子之含水率低者，發芽率也低。就儲藏溫度而言，種子在33%低相對濕度環境下，儲存在低溫者(5℃)較高溫者(15℃)能維持較高的發芽率，但是對儲藏在82%高相對濕度的種子，高低溫度對發芽率表現較不規則。總之，香楠種子不耐乾藏，失水引起活力喪失，屬於異儲型種子。低溫層積的種子是所有試驗處理中活力維持最好者。

關鍵字

香楠 ； 異儲型種子 ； 飽和鹽溶液 ； 種子含水率 ； 種子發芽率 ； 儲藏溫度

並列摘要

The effect of moisture content and storage temperature on the germination of Machilus zuihoensis seeds was determined by storing the seeds in a closed desiccator containing saturated salt solution. The results showed seeds having lower moisture content resulting in lower viability. In terms of storage temperature, it was found that the seeds stored in desiccator at 33% relative humidity (R. H.) were able to maintain higher germination percentage at 5℃ than at 15℃; the seeds stored at 82% R. H. did not show consistent trend of temperature effect. Cold stratification provided the best storage for maintaining viability of the species. It was concluded that Machilus zuihoensis seeds are desiccation sensitive and appears to be recalcitrant seed type.

並列關鍵字

Machilus zuihoensis ； recalcitrant seed ； saturated salt solution ； moisture content of seed ； storage temperature seed germination