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不同浓度多胺对紫斑牡丹切花瓶插期保鲜效果的影响

2021-09-03于玲李玉舒刘旭富张劲农

安徽农业科学 2021年15期

于玲 李玉舒 刘旭富 张劲农

摘要 以紫斑牡丹“京华晴雪”为材料,研究不同浓度亚精胺(Spd)和精胺(Spm)对切花瓶插寿命、花径、鲜重、水分平衡值的影响。结果表明,基本液(BS)(2%蔗糖+300 mg /L柠檬酸+200 mg/L 8-HQ)处理能有效减少紫斑牡丹花枝吸水,增加鲜重。瓶插液⑥(BS+0.1 mmol/L Spm+0.1 mmol/L Spd)和瓶插液④(BS+0.1 mmol/L Spm)处理能够显著增加切花瓶插寿命,延长最佳观赏期,维持花枝持水能力,增加花枝鲜重,延迟水分平衡值到达0的时间,从而延缓衰老进程。瓶插液⑥(BS+0.1 mmol/L  Spm+0.1 mmol/L Spd)还能够显著促进花径增大。综上,瓶插液⑥(BS+0.1 mmol/L Spm+0.1 mmol/L  Spd)能够显著改善紫斑牡丹切花采后水分平衡,增大花径,延长瓶插寿命,保鲜效果最佳。

关键词 多胺;紫斑牡丹切花;瓶插期;保鲜效果

中图分类号 S 685.11  文献标识码 A  文章编号 0517-6611(2021)15-0181-02

Abstract  Paeonia rockii  “ Jing Hua Qing Xue” was used as the materials, the effects of different concentrations of spermidine and spermine on vase life, flower diameter, fresh weight and water balance value of cut flowers were studied. The results showed that basic solution(BS) (2%sucrose+300 mg/L citric acid+200 mg/L 8HQ) could reduce water deficit and increase the fresh weight of cut flowers. Vase solution ⑥ (BS+0.1 mmol/L Spm+0.1 mmol/L Spd) and vase solution ④ (BS+0.1 mmol/L   Spm) could significantly prolong the vase life and the best viewing period, maintain the water holding capacity of the flowers, increase the fresh weight , and delay the time when the water balance value reached 0, thus delaying the aging process of cut flowers.Vase solution ⑥ (BS+0.1 mmol/L  Spm+0.1 mmol/L Spd) also could significantly increase the flower diameter. Vase solution ⑥ (BS+0.1 mmol/L Spm+0.1 mmol/L Spd) could effectively improve water balance of the cut petals, increase flower diameter and prolong the vase life of cut flowers, the preservation effect was the best.

Key words Polyamine; Paeonia rockii  cut flowers;Aging process;Preservation effect

基金项目 北京农业职业学院技术研发与示范推广基金项目(XY-YF-19-01);特色高水平院校建设项目-打造高水平专业群-都市园艺专业群-国家级创新团队培养项目。

作者简介 于玲(1989—),女,河北承德人,讲师,硕士,从事园林植物繁殖与栽培研究。

收稿日期 2020-10-13;修回日期 2021-01-08

紫斑牡丹( Paeonia rockii  T.Hong et J.J.Li)是芍药科木本植物,主要分布于甘肃、四川和陕西等地[1]。紫斑牡丹耐寒性較强[2],年生长量大,花枝较长,花型丰富,花瓣基部具深色斑块,切花应用价值较高,逐步步入了国内外市场。制备保鲜剂延长切花瓶插观赏期是促进切花产业化快速发展的重要环节。研究表明,将二氧化氯(ClO2)加入保鲜剂中[3],可增加牡丹切花枝吸水、延迟开花;加入苯甲酸钠和硫代硫酸银(STS)[4]等成分,能够抑制牡丹切花花瓣的过氧化作用,增加切花观赏时间;喷涂茶树精油与水性丙烯酸树脂能够延长牡丹切花寿命[5]。……

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