種植期與薑荷花切花及種球生產之關係

Planting Date Affects Cut Flowers and Corms Production of Curcuma alismatifolia

自民國84年3月至8月期間，每月中旬以6吋盆種植薑荷花，以比較不同種植期對切花產期與切花及種球產量之影響。試驗結果顯示，愈晚種植者萌芽速度愈快，但開花期仍隨種植期之延緩而延後。不論何時種植，種植至開花所需日數約需105-120天。3、4、5、6、7及8月中旬種植者，其始花期分別為7月5日、8月15日、9月3日、10月5日、11月6日及11月27日；而除7、8月種植者外，其他各處理均在10月下旬至11月上旬停止開花。3月至8月種植之各處理平均切花產量分別為3.66、2.59、1.43、1.26、0.64及0.06枝／株；子球莖產量則分別為5.2、5.19、4.42、3.14、2.26、1.68球／株。

Corms of Curcuma alismatifolia are planted in 2.5-liter pots monthly, between March 1995 and August 1995, to investigate the effect of planting dates on flowering time and yield of stalks and corms. The results show that the bud burst date of corms accelerate as planting dates are postponed, but early planting still resulted in early flowering. Corms, planted on the 15 of March, April, May, June, July and August 1995, started to flower on 5 July, 15August, 3 September, 5 October, 6 November and 27 November 1995, respectively. However, all treatments, except July and August planting, stopped flowering between 19 October and 7 November 1995. The yield of flower stalks for each monthly planting date, from March to August 1995, was 3.66, 2.59, 1.43, 1.26, 0.64, and 0.06 stalks per clustered corm, respectively. The yield of daughter corms for each planting date was 5.2, 5.19, 4.42, 3.14, 2.26, and 1.68 corms per clustered corm, respectively.