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赤霉素对金银花成花过程的调控
兰阿峰1, 纪 薇1, 梁宗锁1,2
1.西北农林科技大学 生命科学学院;2.中国科学院 水利部水土保持研究所
摘要:
为了给金银花(Lonicera japonica Thunb.)栽培管理提供科学依据,试验分别研究了质量浓度为0(对照),100,300,500和1 000 mg/kg赤霉素对金银花花期、单株产量及品质的影响。结果表明,与对照相比,在金银花叶片完全展开且花芽分化前喷施100~1 000 mg/kg赤霉素,可以使金银花的始花期提前4~6 d,盛花期提前8~10 d,从而使金银花的采收期提前;喷施不同质量浓度的赤霉素使金银花单株产量提高了3.6~9.0 g,千蕾重提高1.73~5.45 g,花蕾长度增加0.49~1.39 cm,金银花中绿原酸含量提高6.4~13.0 g/kg。其中300~1 000 mg/kg赤霉素处理明显提高了金银花的品质和产量。故在金银花成花调控过程中,赤霉素的最佳质量浓度为300~1 000 mg/kg。
关键词:  金银花  赤霉素  成花过程
DOI:
分类号:
基金项目:陕西省中药产业规范化发展基金项目(Ych03-1)
Study on the flowered process of the honeysuckle regulated by the gibberellin
Abstract:
In order to provide scientific basis for cultivating administration of the honeysuckle,we studied the effect of gibberellin on flowering season,average output of single strain and quality regulation of honeysuckle by using 0(CK),100,300,500 and 1 000 mg/kg concentration gibberellin,respectively.The result indicated that spraying the gibberellin in the period of leaf unfolding might cause the starting flower season of honeysuckle 4-6 days ahead of time,and abundant flowering season 8-10 days ahead of time,thus moved honeysuckle's recovery time ahead of the control experiments.The output of the single strain enhanced 3.6-9.0 g,thousand flower buds enhanced 1.73-5.45 g,the flower bud length again increased 0.49-1.39 cm,and the chlorogenic acid content also enhanced 6.4-13.0 g/kg when sprayed the gibberellin with different concentration.Therefore 300-1 000 mg/kg of gibberellin concentration are proved the most remarkable for flower process control of honeysuckle.
Key words:  honeysuckle(Lonicera japonica Thunb.),gibberellin,flowered process