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研究生:何俊剛
研究生(外文):Chun-kang Ho
論文名稱:尖葉榕盆栽貯運處理後的品質
論文名稱(外文):Effects of the pre- and post- shipping treatments on the quality of Ficus microcarpa L.F.var.nitida Ho.
指導教授:洪登村洪登村引用關係
指導教授(外文):Deng-Tseng Horng
學位類別:碩士
校院名稱:國立中興大學
系所名稱:園藝學系
學門:農業科學學門
學類:園藝學類
論文種類:學術論文
論文出版年:1994
畢業學年度:82
語文別:中文
論文頁數:102
中文關鍵詞:尖葉榕貯藏模擬運輸品質
外文關鍵詞:Ficus microcarpa L.F.var.nitida Hostoragesimulated shippingquality
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本試驗主要探討尖葉榕貯運期間發生的品質劣變及貯運後室外回復生長的
情況,並尋求解決的方法,以期能得到尖葉榕植株最佳的貯運環境及處理
技術,減少貯運過程中發生品質劣變的現象,並使貯運後的植株有最好的
室外生長表現。本試驗實驗結果顯示尖葉榕以10℃貯運最佳,在25℃及15
℃的貯運溫度下尖葉榕分別在 7天及14天品質開始發生葉片黃化及產生離
層等劣變現象。尖葉榕在 5℃的寒害低溫下因為葉片會更快速的產生壞疽
,在 7天左右也會喪失商業價值。而在10℃貯運下尖葉榕可維持最佳的品
質,但仍無法避免植株產生些許的葉片壞疽及產生離層。而室外表現也是
以在10℃貯運的植株最佳。尖葉榕遭受寒害後 4天左右即會產生壞疽的現
象,壞疽會隨時間的增加而擴大,同時新稍也會有壞死產生。尖葉榕遭受
寒害再回復至室溫後乙烯會有異常上升現象,在暴露於5℃3-9天回溫後乙
烯的最高產量會隨暴露時間的增長而增加,但超過12天的暴露時間則乙烯
的產量會隨暴露時間的增長而降低,而尖葉榕於回溫之後會呼吸率也會有
異常上升現象。電解質滲漏也隨著暴露時間的增長而增加。尖葉榕經過寒
害低溫一個月的時間後,移出室外會有全株乾枯死亡,此與根部受傷無法
吸收水份有密切的關係。尖葉榕經過 STS處理後會有呼吸率及乙烯產生率
的上升,且會有葉部壞死的現象。灌溉處理4.0及2.0mM的植株雖然有最佳
的貯運中及貯運後的品質,但與對照組並無差異,因此尖葉榕貯運前的
STS處理並不是一個有效保持品質的方法。另外尖葉榕在貯運前進行人工
強迫落葉,會影響貯運後植株在室外的恢復生長,在室外生長一個月後葉
片並不萌發,必須要二個月後才能恢復。包裝處理可使包裝容器內的氧氣
濃度降低、二氧化碳的濃度增高,並且可有效的保持尖葉榕貯運中及貯運
後室外的品質;包括降低落葉率及葉片壞疽率,尤其以0.09mmPE包裝袋密
封包裝的植株表現最佳。以遮光進行貯運後低光強度的光馴化並不能減少
落葉率,也不能增加尖葉榕貯運後恢復生長的品質,但是均可使葉綠素a
及b含量增加,同時造成葉綠素b/a上升。由整個試驗結果顯示尖葉榕以10
℃貯藏再配合0.09mm的包裝處理,可使貯運後的植株品質與貯運前相同,
且在貯運後室外生長有最好的表現。
The objective of the works was to investigate the effects of
temperature and relative humidity in simulated shipping,
pretreat- ment on the appearance of Ficus microcarpa L.F.var.
nitida Ho dur- ring and after transportation. After 7 and 14
days in 25 and 15℃,leaf yellowing and dropp- ing of Ficus
microcarpa L.F.var.nitida Ho occured, after 10 and 23 days
commercial quality lost, respectively. Plant had only few
foliar abscission and showed good appearance one month after
si- mulated shipping at 10℃. The relative humidity did not
affect the quality of plants in the shipping.One month in
ambient temp- erature and environment after being in 10℃,the
plants recovered and graw normally again and had a fair growing
quality. Plants were chilled when exposed to 5℃ for 3-4 days,
with symptons of necrosis at the margin of young leaves, leaf
wilt and brown necrotic spots on the olderfoliar.Anatomical
examina- tion revealed cell collapse appeared in the parenchyma
cells of epidermal tissue of leaves.Plants pretreated with STS
at or above the concentration of 0.5 mM occured the necrosis
on the leaves. The higher concentration of STS was used, the
more serious the symptoms of necrosis occured.Irrigation
with STS solution at 4 and 2mM before shipping had the effect
of preventing abscission during transportation. However, one
month in ambient temperature after 10℃ storage the appearance
quality had no significant di- fference between treated and
untreated plants.Those plants being removed all leaves could
not recover until two months in ambient temperature. Package in
polyethylene bags with 0.05 and 0.09 mm thickness could
effectively delay the abscission of leaves and mantained
agood appearance during and after the shipment. Post-shipment
acclimatization did not showed any significant effects on
keeping quality of Ficus microcarpa L.F.var.nitida Ho .However,
the acclimatization increased the content of chlorophy- ll a
and b as well as the ratio of chlb/a.
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