种植期与姜荷花切花及种球生产之关系

Planting Date Affects Cut Flowers and Corms Production of Curcuma alismatifolia

自民国84年3月至8月期间，每月中旬以6寸盆种植姜荷花，以比较不同种植期对切花产期与切花及种球产量之影响。试验结果显示，愈晚种植者萌芽速度愈快，但开花期仍随种植期之延缓而延後。不论何时种植，种植至开花所需日数约需105-120天，3、4、5、6、7及8月中旬种植者，其始花期分别为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月种植者外，其他各处理均在10月下旬至11月上旬停止开花。3月至8月种植之各处理平均切花产量分别为3.66、2.59、1.43、1.26、0.64及0.06枝／株；子球茎产量则分别为5.2、5.19、4.42、3.14、2.26、1.68球／株。

Cones 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 cones. The results show that the bud burst date of corers accelerate as planting dates are postponed, but early planting still resulted in early flowering. Cones, planted on the 15 of March, April, May, June, July and August 1995, started to flower on 5 July, 15 August, 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 cone, respectively. The yield of daughter cones for each planting date was 5.2, 5.19, 4.42, 3.14, 2.26, and 1.68 corms per clustered cone, respectively.