Effects of Plant Growth Retardants on the Flowering Period of Hemerocallis citrina and Its Metabolites

doi:10.16420/j.issn.0513-353x.2024-0035

Acta Horticulturae Sinica ›› 2025, Vol. 52 ›› Issue (4): 997-1006.doi: 10.16420/j.issn.0513-353x.2024-0035

• Cultivation·Physiology & Biochemistry • Previous Articles Next Articles

Effects of Plant Growth Retardants on the Flowering Period of Hemerocallis citrina and Its Metabolites

MENG Lu, MA Tao^*(), YUE Xinli, WANG Hui, LI Xiaoyu, WANG Li

High Latitude Crops Institute，Shanxi Agricultural University，Datong，Shanxi 037006，China

Received:2025-01-06 Revised:2025-03-04 Online:2025-05-08 Published:2025-04-25
Contact: MA Tao

Abstract

Abstract:

The effects of chlorocholine chloride（500，1 000，2 500 mg · L^-1)，uniconazole（50，100，500 mg · L^-1）and paclobutrazol（50，100，500 mg · L^-1）on flowering delay，growth，development and metabolites of Hemerocallis citrina Baroni were investigated. The results showed that the three plant growth retardants had significant effects on the agronomic and economic traits of Hemerocallis citrina Baroni. Uniconazole significantly increased the quality of flower buds，and paclobutrazol treatment delayed the flowering time by 16 days compared with the control. The analysis of metabolites showed that starch and sucrose metabolism，galactose metabolism and aminoacyl tRNA biosynthesis played an important role in the effect of plant growth retardants on flowering. Plant growth retardants mainly regulate the growth and development of Hemerocallis citrina Baroni by increasing the content of amino acids and reducing the content of sugar. The optimal treatment for delaying the flowering time of Hemerocallis citrina Baroni in the Yellow River Basin was 500 mg · L^-1 paclobutrazol.

Key words: Hemerocallis citrina, plant growth retardant, flowering time, metabolite, agronomic trait, economic trait, growth and development

MENG Lu, MA Tao, YUE Xinli, WANG Hui, LI Xiaoyu, WANG Li. Effects of Plant Growth Retardants on the Flowering Period of Hemerocallis citrina and Its Metabolites[J]. Acta Horticulturae Sinica, 2025, 52(4): 997-1006.

Figures/Tables 9

References 26

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植物生长延缓剂 Plant growth retardant	浓度/（mg · L^-1） Concentration	株高/cm Plant height	薹高/cm Bolt height	株幅/cm Plant width	最长叶长/cm Longest leaf length	最长叶宽/cm Maximum leaf width
矮壮素 CCC	500	59.8 ab	103.8 a	72.8 ab	75.2 ab	2.0 a
	1 000	61.3 a	99.0 ab	70.0 abc	69.8 b	2.0 a
	2 500	54.5 bcd	92.8 b	69.2 abc	73.0 b	1.7 a
烯效唑 S3307	50	51.3 cd	83.0 c	66.0 bcd	75.8 ab	1.9 a
	100	56.2 abc	76.8 cd	66.8 bcd	72.3 b	1.9 a
	500	49.2 d	65.8 f	60.2 d	73.7 b	2.0 a
多效唑 PP333	50	56.0 abc	82.2 c	74.2 a	81.8 a	2.0 a
	100	52.2 cd	73.0 de	66.0 bcd	76.7 ab	1.8 a
	500	53.3 cd	67.8 ef	65.0 cd	82.2 a	2.0 a
水Water（对照Control）		61.9 a	95.2 b	72.4 ab	72.2 b	1.7 a

植物生长延缓剂 Plant growth retardant	浓度/（mg · L^-1） Concentration	株高/cm Plant height	薹高/cm Bolt height	株幅/cm Plant width	最长叶长/cm Longest leaf length	最长叶宽/cm Maximum leaf width
矮壮素 CCC	500	59.8 ab	103.8 a	72.8 ab	75.2 ab	2.0 a
	1 000	61.3 a	99.0 ab	70.0 abc	69.8 b	2.0 a
	2 500	54.5 bcd	92.8 b	69.2 abc	73.0 b	1.7 a
烯效唑 S3307	50	51.3 cd	83.0 c	66.0 bcd	75.8 ab	1.9 a
	100	56.2 abc	76.8 cd	66.8 bcd	72.3 b	1.9 a
	500	49.2 d	65.8 f	60.2 d	73.7 b	2.0 a
多效唑 PP333	50	56.0 abc	82.2 c	74.2 a	81.8 a	2.0 a
	100	52.2 cd	73.0 de	66.0 bcd	76.7 ab	1.8 a
	500	53.3 cd	67.8 ef	65.0 cd	82.2 a	2.0 a
水Water（对照Control）		61.9 a	95.2 b	72.4 ab	72.2 b	1.7 a

植物生长延缓剂 Plant growth retardant	浓度/（mg · L^-1） Concentration	蕾粗/mm Bud coarseness	单蕾质量/g Single bud weight	蕾数 Bud number	有茎蕾长/cm Bud length with stem	无茎蕾长/cm Bud length without stem
矮壮素 CCC	500	9.3 f	3.6 fg	23.8 a	13.0 bc	8.6 d
	1 000	10.3 e	3.7 ef	22.7 a	13.2 bc	9.0 cd
	2 500	10.4 e	4.2 de	21.5 a	13.4 bc	9.3 bc
烯效唑 S3307	50	11.4 cd	4.5 cd	25.0 a	12.8 bcd	9.3 bc
	100	12.0 bc	5.3 b	22.7 a	12.8 bcd	9.6 b
	500	13.2 a	6.6 a	19.8 a	14.1 a	11.0 a
多效唑 PP333	50	10.4 e	4.1 de	21.8 a	12.6 cde	9.2 bc
	100	10.7 de	4.2 de	22.8 a	12.2 e	9.0 cd
	500	12.1 bc	5.0 bc	25.8 a	11.2 f	8.9 cd
水Water（对照Control）		9.3 f	3.2 g	22.9 a	12.2 de	8.0 e

植物生长延缓剂 Plant growth retardant	浓度/（mg · L^-1） Concentration	蕾粗/mm Bud coarseness	单蕾质量/g Single bud weight	蕾数 Bud number	有茎蕾长/cm Bud length with stem	无茎蕾长/cm Bud length without stem
矮壮素 CCC	500	9.3 f	3.6 fg	23.8 a	13.0 bc	8.6 d
	1 000	10.3 e	3.7 ef	22.7 a	13.2 bc	9.0 cd
	2 500	10.4 e	4.2 de	21.5 a	13.4 bc	9.3 bc
烯效唑 S3307	50	11.4 cd	4.5 cd	25.0 a	12.8 bcd	9.3 bc
	100	12.0 bc	5.3 b	22.7 a	12.8 bcd	9.6 b
	500	13.2 a	6.6 a	19.8 a	14.1 a	11.0 a
多效唑 PP333	50	10.4 e	4.1 de	21.8 a	12.6 cde	9.2 bc
	100	10.7 de	4.2 de	22.8 a	12.2 e	9.0 cd
	500	12.1 bc	5.0 bc	25.8 a	11.2 f	8.9 cd
水Water（对照Control）		9.3 f	3.2 g	22.9 a	12.2 de	8.0 e

植物生长延缓剂 Plant growth retardant	浓度/（mg · L^-1） Concentration	初花期推迟时间/d 5% flowering time	盛花期推迟时间/d 50% flowering time	末花期推迟时间/d 95% flowering time
矮壮素 CCC	500	3.7 e	0.3 fg	0.7 g
	1 000	5.3 d	1.7 f	2.0 f
	2 500	7.0 c	3.3 e	2.7 f
烯效唑 S3307	50	2.0 f	5.0 d	4.3 e
	100	8.7 c	6.0 cd	7.3 c
	500	14.0 b	8.7 b	9.3 b
多效唑 PP333	50	8.7 c	7.0 c	6.0 d
	100	13.0 b	9.0 b	9.0 b
	500	16.0 a	12.0 a	11.3 a
水Water（对照Control）		0 g	0 g	0 g

Effects of Plant Growth Retardants on the Flowering Period of Hemerocallis citrina and Its Metabolites

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种类 Type	数量 Number	占总代谢物的百分比/% The percentage in the total metabolite
黄酮类 Flavonoids	104	15.32
生物碱Alkaloid	59	8.69
酚类Phenols	62	9.13
萜烯类Terpenes	52	7.66
氨基酸及其衍生物Amino acids and their derivatives	50	7.36
有机酸及其衍生物Organic acids and their derivatives	44	6.48
脂质Lipid	39	5.74
核苷酸及其衍生物Nucleotides and their derivatives	38	5.60
类固醇及其衍生物Steroids and their derivatives	25	3.68
香豆素类Coumarins	22	3.24
苯丙醇Phenylpropanols	18	2.65
糖类Saccharides	12	1.77
植物激素Plant hormones	11	1.62
木质素Lignans	10	1.47
有机氮化合物Organic nitrogen compounds	10	1.47
其他Others	123	18.11

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