植物生长延缓剂对盆栽萱草的矮化效应

doi:10.12190/j.issn.2096-1197.2022.01.11

北方农业学报 ›› 2022, Vol. 50 ›› Issue (1): 80-86.doi: 10.12190/j.issn.2096-1197.2022.01.11

植物生长延缓剂对盆栽萱草的矮化效应

马柏林¹, 刘旭², 罗桂杰², 陈芬², 刘博²

1.江苏省宿迁市宿豫区农业技术推广中心,江苏宿迁 223800;
2.江苏省农业科学院宿迁农科所,江苏宿迁 223800

收稿日期:2021-09-07 出版日期:2022-02-20 发布日期:2022-04-11
通讯作者: 刘旭（1978—）,男,副研究员,硕士,主要从事果树、花卉的研究工作。
作者简介:马柏林（1981—）,男,农艺师,学士,主要从事林木、果树、花卉、土壤肥料的研究工作。
基金资助:
江苏省宿迁市农业科技自主创新项目（SQCX202003）

Dwarfing effects of plant growth retardants on potted Hemerocallis

MA Bailin¹, LIU Xu², LUO Guijie², CHEN Fen², LIU Bo²

1. The Agricultural Technology Promotion Center in Suyu District of Suqian City of Jiangsu Province,Suqian 223800,China;
2. Suqian Institute of Agricultural Sciences,Jiangsu Academy of Agricultural Sciences,Suqian 223800,China

Received:2021-09-07 Online:2022-02-20 Published:2022-04-11

摘要/Abstract

摘要： 【目的】探讨植物生长延缓剂对萱草的矮化效应,提高萱草的观赏价值。【方法】以萱草品种小安娜罗莎为试验材料,采用不同质量浓度的多效唑（PP₃₃₃）、烯效唑（S₃₃₀₇）、矮壮素（CCC）、比久（B₉）对盆栽萱草进行盆内土施和叶面喷施,以清水处理为对照,分析植物生长延缓剂对萱草株型、叶部性状及开花的影响。【结果】不同处理对小安娜罗莎株型均有抑制作用,叶面喷施60 mg/L S₃₃₀₇的处理抑制效果最明显,株高、冠幅分别比对照降低了52.32%、36.68%,茎粗比对照增加了97.61%;从施用方式来看,叶面喷施PP₃₃₃、S₃₃₀₇对小安娜罗莎的矮化效果优于盆内土施,盆内土施CCC、B₉对小安娜罗莎的矮化效果优于叶面喷施。不同处理对小安娜罗莎植株叶片均有抑制作用,且与浓度成正相关。叶面喷施60 mg/L S₃₃₀₇的处理叶长、叶宽（40 mg/L S₃₃₀₇处理除外）、叶面积显著低于对照和其他各处理（P<0.05）,分别比对照降低了29.47%、35.44%、54.46%;从施用方式来看,叶面喷施S₃₃₀₇（20 mg/L除外）对叶长、叶面积的抑制效果显著高于盆内土施（P<0.05）,盆内土施CCC、B₉对小安娜罗莎的叶长、叶宽、叶面积的抑制效果强于叶面喷施。不同处理对小安娜罗莎花朵直径增加均有促进作用,叶面喷施60 mg/L S₃₃₀₇花朵直径显著高于对照和其他各处理（P<0.05）,比对照增加了65.00%。从药剂种类来看,高浓度的PP₃₃₃、CCC、B₉两种施用方式均对植株造成药害,表现为不能开花;S₃₃₀₇处理未见药害现象,植株能正常开花。【结论】叶面喷施60 mg/L S₃₃₀₇对盆栽萱草小安娜罗莎的观赏价值明显提高,主要表现为株型矮化、紧凑,叶片变小,叶色浓绿,花朵直径增加。

关键词: 萱草, 植物生长延缓剂, 矮化效应

Abstract: 【Objective】To investigate the dwarfing effect of plant growth retardants on Hemerocallis hence improve its ornamental value.【Methods】Different concentrations of Paclobutrazol（PP₃₃₃）,Uniconazole（S₃₃₀₇）,Chlormequat Chloride（CCC）,and B₉ were applied to Hemerocallis variety‘little Anna Rosa’ by pot soil application or leaf spraying with water as control. The effects of plant growth retardants on plant morphology,leaf characteristics,and flowering of Hemerocallis were investigated.【Results】All of the treatments had an inhibitory effect on‘little Anna Rosa’ plant morphology,with the treatment of spraying 60 mg/L S₃₃₀₇ on the leaf having the most evident inhibitory effect. In comparison to the control,the plant height and crown width both decreased by 52.32% and 36.68%,respectively;the stem diameter increased by 97.61%. In terms of application methods,leaf spraying PP₃₃₃ and S₃₃₀₇ had a better dwarfing effect on‘little Anna Rosa’ than pot soil application,whereas pot soil application CCC and B₉ had a better dwarfing effect on‘little Anna Rosa’ than leaf spraying. Various treatments inhibited the leaves of the‘little Anna Rosa’,and the effect was positively related to the concentration. The leaf length,leaf width（excluding 40 mg/L S₃₃₀₇）,and leaf area of the 60 mg/L S₃₃₀₇ treatment were significantly smaller than the control and other treatments（P<0.05）,with reductions of 29.47%,35.44%,and 54.46% respectively,as compare to the control. In terms of application methods,leaf spraying S₃₃₀₇（excluding 20 mg/L）had significantly higher inhibitory effect on leaf length and leaf area than pot soil treatment（P<0.05）. While pot soil treatment of CCC and B₉ had a higher inhibitory effect on leaf length,leaf width,and leaf area of than leaf spraying. Various treatments increased the flower diameter of ‘little Anna Rosa’. The flower diameter of 60 mg/L S₃₃₀₇ was significantly higher than that of the control and other treatments（P<0.05）,which was 65.00% higher than control. In terms of retardants toxicity,high concentrations of PP₃₃₃,CCC and B₉ caused the plants to stop blooming. The S₃₃₀₇,on the other hand,had no toxicity and allowed the plant to bloom normally. 【Conclusion】Leaf spraying with 60 mg/L S₃₃₀₇ boosted the ornamental value of potted Hemerocallis,resulting in a dwarf and compact plant,smaller leaves,dense green foliage,and larger flower diameter.

Key words: Hemerocallis, Plant growth retardants, Dwarfing effects

中图分类号:

S682.19

马柏林, 刘旭, 罗桂杰, 陈芬, 刘博. 植物生长延缓剂对盆栽萱草的矮化效应[J]. 北方农业学报, 2022, 50(1): 80-86.

MA Bailin, LIU Xu, LUO Guijie, CHEN Fen, LIU Bo. Dwarfing effects of plant growth retardants on potted Hemerocallis[J]. Journal of Northern Agriculture, 2022, 50(1): 80-86.

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植物生长延缓剂对盆栽萱草的矮化效应

Dwarfing effects of plant growth retardants on potted Hemerocallis

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