| 摘要: |
| [目的]研究不同浓度1-MCP(1-甲基环丙烯)及综合保鲜配方处理对金百合“精粹”切花瓶插期生理代谢水平及保鲜效果的影响,探索金百合“精粹”切花适宜的采后综合保鲜措施.[方法]分别用30,150和1 000 nL/L 1-MCP对金百合“精粹”切花进行保鲜处理,研究其对切花瓶插期呼吸速率、细胞膜相对透性、水分代谢等生理变化的影响;采用L9(34)正交试验,探讨不同浓度1-MCP(30,150和1 000 nL/L )、6-BA(20,40和90 mg/L)、GA3(20,40和150 mg/L)、蔗糖(20,30 和50 g/L)等保鲜剂及其组合水平对切花保鲜效果的影响效应.[结果]与对照相比,1-MCP处理可以有效延迟金百合“精粹”呼吸高峰的出现,降低呼吸速率,延缓水分代谢的失调与细胞膜相对透性的增大;1 000 nL/L 1-MCP处理有利于切花水分的吸收与保持,并能促进花径增大;150 nL/L 1-MCP处理对切花呼吸消耗的抑制、瓶插寿命的延长及衰老进程的延缓更为有效.在延长金百合切花瓶插寿命方面,蔗糖较1-MCP和其他保鲜措施的影响效应更强;而在促进花径增大与花朵开放方面,1-MCP的影响效应强于蔗糖和其他保鲜剂. [结论]金百合“精粹”切花在瓶插期采用150 nL/L 1-MCP 40 mg/L 6-BA 40 mg/L GA3 30 g/L SUC,并结合150 mg/L柠檬酸200 mg/L 8-HQ等抗衰败综合措施进行保鲜,其寿命与观赏品质最好. |
| 关键词: 金百合切花 1 MCP 蔗糖 6 BA GA3 保鲜配方 保鲜效应 |
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| 基金项目:常熟理工学院植物学重点学科资助项目（2004-10） |
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| Effects of 1-MCP treatment and comprehensive preservative prescriptions on cut lily |
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| Abstract: |
| 【Objective】 The cut lilies (Lilium hybrida Asiatic.cv.Elite) were treated with different concentrations of 1-MCP (1-methylcyclopropene) and comprehensive preservative prescriptions after harvest at the room temperature.The effects on some physiological changes and fresh-keeping of the cut flowers were studied during vasing in order to explore the optimal compositive preservative prescription of cut flowers of‘Elite’lily.【Method】 Cut flowers of‘Elite’lily treated with different concentrations of 1-MCP (30,150,1 000 nL/L) were used to investigate the senescent changes in respiration rate,relative membranes permeability and water metabolism during vasing. Main effect of fresh-keeping of cut flowers was investigated according to orthogonal design through 1-MCP(30，150，1000 nL/L),6-BA（20，40，90 mg/L）,GA3（20，40，150 mg/L）and the sucrose（20，30，50 g/L）treatments. 【Result】 The results indicated that compared with control,treatments with different concentrations of 1-MCP manifestly delayed the appearing of respiratory peak and imbalance in water metabolism,and lowered the relative membranes permeability of cut lilies.Treatment with 1 000 nL/L 1-MCP was more effective in inhibiting imbalance in water metabolism and increasing the flower diameter of cut lilies.Treatment with 150 nL/L 1-MCP was more impactful in reducing respiration rate and prolonging vase life of cut flowers.The effects of sucrose on vase life was better than 1-MCP and the other preservatives,while 1-MCP was better in increasing the flower diameter of cut flowers.【Conclusion】 The best combination was sifted according to orthogonal design through intergrated evaluation and analyses.It is considered a reasonable compositive prescription of preservatives for freshness protection of Lilium‘Elite’cut flowers to use 150 nL/L 1-MCP,40 mg/L 6-BA,40 mg/L GA3,30 g/L SUC with 150 mg/L citric acid and 200 mg/L 8-hydroxyquinoline treatment. |
| Key words: cut lilium Asiatic 1-MCP(1-Methylcyclopropene) sucrose 6-BA(6-phenmethyl adenine) GA3(gibberelin) fresh-keeping recipe fresh-keeping effect |
