B_9和6-BA配合使用对唐菖蒲切花保鲜效果影响的研究

Influences of Combination Application of B_9 and 6-BA on the Fresh-keeping Effect of Cut Flowers of Gladiolus hybridus

[目的]为提高唐菖蒲切花的保鲜效果提供理论依据及技术指导。[方法]以粉秀唐菖蒲品种为供试材料,通过对唐菖蒲寿命、观赏值、水分平衡值、鲜重变化率、花青素含量、花瓣质膜相对透性等指标的观测,探讨了B9和6-苄基嘌呤(6-BA)的不同组合对唐菖蒲切花保鲜效果的影响。[结果]各处理切花的瓶插寿命均明显长于CK,而添加6-BA和B9的处理其瓶插寿命与母液相比有较明显的延长。6-BA与B9间存在明显的交互作用。6-BA在增加唐菖蒲切花鲜重,改善切花体内的水分状况等方面的作用效果比B9要好。各保鲜剂处理均可抑制植物体内膜脂过氧化物丙二醛的产生,维持细胞膜结构的稳定性。各处理花青素含量随瓶插天数的增加呈先上升后下降的趋势。[结论]综合考虑,以4%蔗糖+300mg/L8-羟基喹啉+150mg/L硼酸+20mg/L6-BA+200mg/LB9的保鲜效果最佳,瓶插寿命达到22d。

[Objective] The research aimed to provide theoretical basis and technical guidance for improving the fresh-keeping effect on cut flowers of Gladiolus hybridus. [Method] With G. hybridus variety Fenxiu as tested materials, based on the observation on the indexes such as the life, the ornamental value, water balance value, the change rate of fresh weight, anthocyanin content and the relative permeability of petal plasma membrane, the effects of different combinations of B9 and 6- benzyl adenine （6-BA）on the fresh-keeping effect of cut flowers of G. hybridus were discussed. [Result] The vase life of cut flowers in each treatment were longer than that of CK. Compared with mother liquor, the vase life in the treatments of adding 6-BA and B9 were obviously prolonged. An obvious interaction accrued between 6-BA and B9 had an obvious interaction. Compared with B9, 6-BA had better effects on increasing the fresh weight of cut flowers of G. hybridus, improving the water conditions in the body of cut flowers, etc. Each treatment of different antistaling agents could all inhibit the production of membrane lipid peroxide malondialdehyde in plant body and maintain the stability of cell membrane structure. The anthocyanin content in each treatment showed a trend of first increasing and then decreasing with the increment of the vase days. [Conclusion] Considering synthetically, the fresh-keeping effect of 4 % sucrose ＋300 mg/L 8- hydroxyquinoline ＋ 150 mg/L boric acid ＋20 mg/L 6-BA ＋200 mg/L B9 was best and its vase life reached 22 d.