| Summary: | 碩士 === 國立臺灣大學 === 園藝學研究所 === 94 === The bulbs of Star–of-Bethlehem (Ornithogalum saundersiae Bak.) after six weeks solarization in plastic house was chosen and planted in order to contrast the group at the beginning of March , respectively preserved in 8 , 12 , 16 , 20 , 24 ℃ of thermostated containers and continue being solarization in plastic house . Take out and plant the kinds of bulbs with treated temperature in the beginning of May and July separately, planting bulbs in National Taiwan university department of horticulture in Taipei basin、above sea level 1200m Chun-Yang farm and above sea level 2100m Mei-Feng farm. 8 and 12℃ can suppress the plant to grow , and then postpone flowering, but the rotten bulbs rate rising as preserved the increase of time. The bulbs storage in 20 and 24℃ with high temperature can not inhibit the growth of bulbs, advance flowering date, the rotten rate relatively low, but it was the longer to preserve time the blooming rate of plant was known and dropped thereupon . The Star–of-Bethlehem had characteristic of preformed bud, and can sprout quickly under the suitable environmental climate. The number of leaves of Star–of-Bethlehem could not be affected by storage temperature, plant season, plant area altitude. Plant on Taipei due to growing environment temperature relatively high , so the flowering date is the earliest, and the plant on Chun-Yang farm takes second place, it is latest to plant on Mei-Feng farm. Planting month can really postpone flowering date, it’s storage time is too long to consume carbohydrate much then with spend quality drop to cut flowering rate and quality. Planting should avoid the season of the likely to suffer from heavy rain of this area in month, in case that because the rain causes plants too low survival rate, increase the production cost, reduce farmer’s income.
According to this result of study, advise the cut flower of the Star–of-Bethlehem in Taiwan , plant the bulbs in field planting of the area of Taipei at the beginning of March, can gather and cut flowers ahead of time in early June ; Plant the Star–of-Bethlehem bulbs which had been preserved for 4 months in 8℃ or 12℃ in Mei-Feng farm at the beginning of July, can postpone gathering and cutting flowers to the first ten days of October . Like this, in except the usual flowering date of Star–of-Bethlehem in August, can use the regulating flowering technology , reach and lengthen the achievement that supply period , promote farmer''s income and offer consumer diversification in the corresponding period to choose.
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