種球貯藏方式對伯利恆之星(Ornithogalum saundersiae Bak.)產期及開花品質的影響

Bulb Storage Conditions Influence Flowering Period and Flower Quality of Ornithogalum Saundersiae Bak.

李美玲(Mei-Ling Lee) ； 黃朝窗(Chaur-Chuang Huang) ； 陳怡如(I-Ju Chen) ； 張祖亮(Tsu-Liang Chang)

《臺灣園藝》 52卷1期 (2006/03) Pp. 53-60

https://doi.org/10.6964/JTSHS.200603.0053

摘要

栽培於台大山地實驗農場梅峰本場之伯利恆之星，種球採收後皆置於簡易溫室內曝曬，通常在曝曬六週後，於三月初種植。本研究選取曝曬六週後之種球，進行3℃、8℃、20℃恆溫箱貯藏及於簡易溫室繼續曝曬等四種處理，分別於五月初及七月初種植。結果顯示，低溫貯藏可抑制生長，從而延後開花期，但種球腐爛率隨著貯藏時間的延長而上升；繼續曝曬處理者之種球萌芽率、開花率、花梗數及花梗長度等表現皆佳，但對產期調節助益不大；3℃貯藏者種植後之各項表現甚差、且種球在貯藏期間的腐爛率高，貯藏4個月後更高達100%，因此不適合用作伯利恆之星之種球貯藏溫度；8℃貯藏者之各項表現中等，而貯藏4個月後種植可以有效延後產期至十一月中旬；20℃貯藏2個月者之品質與繼續曝曬組差異不大，卻具有提前產期至八月上旬之效果。由上得知，3℃不適合作爲伯利恆之星的貯藏溫度；陽光曝曬處理於三月至五月種植對產期影響不大，延後二個月至七月種植僅延後產期約半個月；欲提前產期可採用20℃貯藏2個月來進行；若要延後產期則可利用8℃貯藏4個月來達到目的。

關鍵字

伯利恆之星 ； 貯藏溫度 ； 種球腐爛率 ； 種植時間 ； 每球抽花梗數 ； 花梗長

並列摘要

At Mei-Feng highland farm of National Taiwan University, the harvested bulbs of Ornithogalum saundersiae Bak. were solarized in plastic house for six weeks. In early March, some tested bulbs were planted as check and the others were stored in dark incubators of 3℃, 8℃ and 20℃ or continuously solarized in plastic house, respectively. Stored and solarized bulbs were planted in early May and early July. The subsequent growth of the bulbs showed that delayed the flowering period due to low temperature growth restriction. The incidence of bulbs decay rose with the expending of storage period. Solarized bulbs were good in sprout rate, flowering rate, no. of flower stalk per bulb and flower stalk length. Bulbs stored in 3℃ behaved badly and decayed seriously, even reached to 100% after four-month storage. After fourmonth storage, bulbs stored in 8℃ behaved moderately and those could delay flowering to mid-November. Bulbs stored in 20℃ after two months behaved the same as bulbs solarized in plastic house, and could force flowering to early August. To summarize the results, 3℃ is not suitable the bulb of 'Star of Bethleham'. Bulbs solarized in plastic house usually flowered in normal season in spite of the different from March to May. While only delayed flowering about half a month when planted in July. Bulbs stored in 20℃ for two months can force flowering earlier, and bulbs stored in 8℃ for four months can delay flowering properly.

並列關鍵字

star of Bethlehem ； storage temperature ； bulb decay rate ； planting date ； no. of flower stalk per bulb ； flower stalk length