喷施赤霉素缓解多效唑对叶用莴苣幼苗的抑制作用

doi:10.6048/j.issn.1001-4330.2023.10.026

新疆农业科学 ›› 2023, Vol. 60 ›› Issue (10): 2558-2565.DOI: 10.6048/j.issn.1001-4330.2023.10.026

• 植物保护·微生物·土壤肥料 • 上一篇下一篇

喷施赤霉素缓解多效唑对叶用莴苣幼苗的抑制作用

成臣¹(), 鄢雨蛟¹, 曾文愉¹, 廖雅汶¹, 高志强¹, 卢占军¹, 姚锋先¹(), 朱博¹, 汪建军²

1.赣南师范大学生命科学学院/赣州市设施蔬菜重点实验室,江西赣州 341000
2.江西省气象科学研究所,南昌 330096

收稿日期:2023-01-23 出版日期:2023-10-20 发布日期:2023-11-01
通信作者: 姚锋先(1980-),男,副教授,博士,硕士生导师,研究方向为蔬菜生理与栽培, (E-mail) fengxianyao@aliyun.com
作者简介:成臣(1990-),男,江西德安人,讲师,博士,硕士生导师,研究方向为蔬菜生理与栽培, (E-mail)chengchenzxm@163.com
基金资助:
江西省重点研发计划项目(20203BBFL63065);江西省教育厅科学技术研究项目(GJJ211430)

Spraying gibberellin to alleviate the Inhibition of paclobutrazol on leaf lettuce seedlings

CHENG Chen¹(), YAN Yujiao¹, ZENG Wenyu¹, LIAO Yawen¹, GAO Zhiqiang¹, LU Zhanjun¹, YAO Fengxian¹(), ZHU Bo¹, WANG Jianjun²

1. Ganzhou Key Laboratory of Greenhouse Vegetable / College of Life Sciences, Gannan Normal University, Ganzhou Jiangxi 341000, China
2. Meteorological Science Institute of Jiangxi Province, Nanchang 330096, China

Received:2023-01-23 Online:2023-10-20 Published:2023-11-01
Correspondence author: YAO Fengxian(1980-), male, associate professor, doctoral, master supervisor, research direction in vegetable physiology and cultivation technology, (E-mail) fengxianyao@aliyun.com
Supported by:
Major Basic Research Development Program of Jiangxi Province(20203BBFL63065);Science and Technology Research Project of the Education Department of Jiangxi Province(GJJ211430)

摘要/Abstract

摘要：

【目的】 研究喷施赤霉素缓解多效唑对叶用莴苣幼苗抑制作用。【方法】 采用叶用莴苣不同品种与不同质量浓度的赤霉素进行双因素完全随机试验设计,采用5个叶用莴苣品种,赤霉素质量浓度以有效成分计,分别设A₁(0 mg/L)、A₂(15 mg/L)、A₃(30 mg/L)、A₄(60 mg/L)、A₅(120 mg/L)、A₆(240 mg/L)和A₇(480 mg/L)共7种喷施水平,于叶用莴苣移栽期测定幼苗素质、叶形及叶片可溶性固形物含量。【结果】 随赤霉素质量浓度增加,各叶用莴苣品种的株高、根鲜重、根干重、地上部鲜重、地上部干重、总叶面积、总叶长、总叶宽、最大功能叶叶长及最大功能叶叶宽均先增后降,各指标值均在A₅处理时达最大,与A₁处理相比,A₅处理各指标分别增加36.8%~86.6%、30.1%~53.4%、21.1%~77.7%、56.2%~127.3%、56.0%~115.5%、63.4%~142.1%、30.4%~79.5%、27.0%~65.7%、24.0%~50.0%及21.8%~48.8%。可溶性固形物也呈现先增后降的趋势,以A₂处理、A₃处理表现最佳。叶用莴苣各品种SPAD值及根冠比先降后增,各指标值均为A₅处理最低,与A₁处理相比,A₅处理各指标分别降低17.6%~28.6%及17.5%~36.2%。【结论】 喷施赤霉素具有缓解多效唑抑制的作用,其中赤霉素质量浓度在A₅(120 mg/L)时对叶用莴苣幼苗的调控效果最佳。

关键词: 多效唑残留; 赤霉素; 叶用莴苣; 幼苗

Abstract:

【Objective】 In view of the major practical problem that paclobutrazole residue significantly inhibits the growth and development of leaf lettuce at seedling stage, a two-factor completely randomized trial design consisting of different leaf lettuce varieties and gibberellin mass concentrations was adopted to explore whether spraying gibberellin could alleviate the adverse effect of paclobutrazol.【Methods】 A total of five leaf lettuce varieties and seven spraying levels with different mass concentrations of effective ingredient gibberellin, including A₁ (0 mg/L), A₂ (15 mg/L), A₃ (30 mg/L), A₄ (60 mg/L), A₅ (120 mg/L), A₆ (240 mg/L) and A₇ (480 mg/L), were carried out and the seedling quality, leaf type and the content of soluble solids in leaves of leaf lettuce were determined at the transplanting stage.【Results】 With the increase of gibberellin mass concentration, all parameters of the leaf lettuce height, root fresh weight, root dry weight, shoot fresh weight, shoot dry weight, total leaf area, total leaf length, total leaf width, maximum function leaf length, and maximum function leaf width of five cultivars were increased firstly and then decreased with the increase of gibberellin mass concentration.The values of all indexes reached the maximum at A₅ treatment, and compared with A₁ treatment, each index of A₅ treatment were increased by 36.8%-86.6%, 30.1%-53.4%, 21.1%-77.7%, 56.2%-127.3%, 56.0%-115.5%, 63.4%-142.1%, 30.4%-79.5%, 27.0%-65.7%, 24.0%-50.0%, 21.8%-48.8%, respectively.The indexes of soluble solids also showed a tendency to increase first and then decrease, with the best performance in A₂ andA₃ treatments.The SPAD value and root shoot ratio of leaf lettuce exhibited an opposite tendency and the minimum of all indexes was found in A₅ treatment.Compared with A₁ treatment, each index of A₅ treatment was significantly reduced by 17.6%-28.6%, 17.5%-36.2%, respectively.【Conclusion】 In conclusion, the inhibition effect of paclobutrazol residue was alleviated by spraying gibberellin, and the gibberellins mass concentration A₅(120 mg/L) exhibited the best regulation effect on leaf lettuce seedlings.

Key words: plobutrazol residue; gibberellins; leaf lettuce; seedlings

中图分类号:

S636.2

成臣, 鄢雨蛟, 曾文愉, 廖雅汶, 高志强, 卢占军, 姚锋先, 朱博, 汪建军. 喷施赤霉素缓解多效唑对叶用莴苣幼苗的抑制作用[J]. 新疆农业科学, 2023, 60(10): 2558-2565.

CHENG Chen, YAN Yujiao, ZENG Wenyu, LIAO Yawen, GAO Zhiqiang, LU Zhanjun, YAO Fengxian, ZHU Bo, WANG Jianjun. Spraying gibberellin to alleviate the Inhibition of paclobutrazol on leaf lettuce seedlings[J]. Xinjiang Agricultural Sciences, 2023, 60(10): 2558-2565.

图/表 3

表1 多效唑显著抑制下喷施赤霉素叶用莴苣幼苗品质变化

Tab.1 Effects of spraying gibberellin on seedling quality of leaf lettuce under significant inhibition of paclobutrazol

品种 Variety	处理 Treat- ment	株高 Height (cm)	SPAD值 SPAD value	根鲜重 Root fresh weight(g)	根干重 Root dry weight(g)	地上部鲜重 Shoot fresh weight(g)	地上部干重 Shoot dry weight(g)	根冠比 Root shoot ratio
奶油生菜 Butter lettuce	A₁	2.1±0.1^c	20.8±1.8^a	0.44±0.02^d	0.036±0.001^a	0.53±0.04^e	0.061±0.005^e	0.59±0.05^a
	A₂	2.4±0.2^b	18.4±1.1^c	0.47±0.0 $5 c d$	0.038±0.004^a	0.62±0.0 $8 d e$	0.070±0.003^d	0.54±0.0 $6 a b$
	A₃	2.6±0.1^ab	17.9±0.8^bc	0.52±0.03^abc	0.042±0.006^a	0.82±0.05^abc	0.087±0.010^ab	0.48±0.06^ab
	A₄	2.8±0.2^a	17.7±1.9^bc	0.55±0.02^ab	0.043±0.009^a	0.84±0.09^ab	0.091±0.008^ab	0.47±0.07^b
	A₅	2.9±0.2^a	17.0±0.6^c	0.57±0.06^a	0.044±0.005^a	0.89±0.09^a	0.095±0.005^a	0.46±0.05^b
	A₆	2.6±0.2^ab	20.0±1^ab	0.49±0.05^bcd	0.040±0.002^a	0.74±0.05^bc	0.085±0.005^bc	0.47±0.05^b
	A₇	2.4±0.2^bc	21.2±0.6^a	0.46±0.05^cd	0.037±0.004^a	0.72±0.06^cd	0.076±0.004^cd	0.49±0.08^ab
	CV(%)	10.4	8.7	9.7	7.5	17.5	15.1	9.8
耐抽薹生菜 Bolting to lerance lettuce	A₁	2.2±0.1^d	23.5±1.2^a	0.48±0.03^e	0.032±0.006^c	0.57±0.03^d	0.059±0.004^d	0.55±0.05^a
	A₂	2.6±0.1^bc	21.1±1.5^b	0.58±0.03^bc	0.040±0.003^ab	0.76±0.05^bc	0.083±0.008^abc	0.49±0.09^ab
	A₃	2.7±0.1^b	20.8±0.5^bc	0.60±0.02^bc	0.041±0.004^ab	0.83±0.10^ab	0.085±0.009^abc	0.48±0.04^ab
	A₄	3.0±0.2^a	20.3±1.2^bc	0.63±0.05^ab	0.042±0.003^ab	0.86±0.04^ab	0.090±0.010^ab	0.47±0.05^ab
	A₅	3.2±0.2^a	18.6±1.0^c	0.65±0.03^a	0.044±0.003^a	0.89±0.07^a	0.096±0.003^a	0.44±0.02^b
	A₆	2.4±0.1^cd	19.6±1.7^bc	0.55±0.03^cd	0.038±0.003^abc	0.71±0.05^c	0.078±0.006^bc	0.48±0.07^ab
	A₇	2.3±0.2^d	20.9±1.4^bc	0.53±0.03^de	0.037±0.002^bc	0.64±0.06^cd	0.075±0.008^c	0.50±0.03^ab
	CV(%)	14.1	7.3	10.3	9.8	15.7	15.1	6.3
玻璃生菜 Lceberg lettuce	A₁	2.2±0.1^e	23.8±2.3^a	0.54±0.07^c	0.044±0.008^b	0.61±0.07^e	0.059±0.004^d	0.74±0.07^a
	A₂	2.7±0.2^cd	21.2±0.7^ab	0.64±0.05^b	0.053±0.007^ab	0.85±0.08^cd	0.095±0.009^c	0.56±0.08^b
	A₃	3.6±0.1^b	20.5±2.0^bc	0.68±0.03^ab	0.057±0.002^a	0.97±0.09^bc	0.104±0.005^bc	0.55±0.01^b
	A₄	3.7±0.2^b	17.6±1.1^d	0.70±0.03^ab	0.059±0.009^a	1.05±0.08^ab	0.109±0.006^ab	0.54±0.03^b
	A₅	4.2±0.1^a	17.0±0.7^d	0.74±0.07^a	0.062±0.006^a	1.17±0.08^a	0.120±0.012^a	0.52±0.02^b
	A₆	3.0±0.2^c	17.3±1.3^d	0.66±0.03^ab	0.056±0.004^a	0.89±0.08^cd	0.106±0.008^bc	0.53±0.03^b
	A₇	2.5±0.2^de	18.5±0.6^cd	0.62±0.06^bc	0.054±0.003^ab	0.77±0.06^d	0.101±0.001^bc	0.54±0.02^b
	CV(%)	22.7	13.0	9.6	10.5	20.5	19.5	13.6
罗马直立生菜 Roman upright lettuce	A₁	1.9±0.1^d	30.8±0.3^a	0.46±0.01^e	0.034±0.002^c	0.55±0.05^d	0.068±0.011^e	0.50±0.04^a
	A₂	2.3±0.2^c	28.3±0.2^b	0.53±0.05^cde	0.047±0.001^b	0.67±0.04^cd	0.099±0.004^d	0.48±0.01^ab
	A₃	2.7±0.1^ab	27.8±1.7^bc	0.58±0.09^bcd	0.049±0.008^b	0.69±0.02^c	0.104±0.008^cd	0.47±0.05^ab
	A₄	2.9±0.2^a	26.0±0.6^d	0.62±0.02^abc	0.056±0.005^ab	0.92±0.08^b	0.120±0.006^bc	0.46±0.03^ab
	A₅	3.0±0.1^a	25.4±1.2^d	0.71±0.09^a	0.061±0.006^a	1.06±0.07^a	0.146±0.008^a	0.41±0.06^b
	A₆	2.5±0.2^bc	26.6±0.6^cd	0.64±0.12^ab	0.055±0.010^ab	0.84±0.10^b	0.123±0.013^b	0.45±0.05^ab
	A₇	2.4±0.2^bc	27.9±0.8^bc	0.49±0.05^de	0.046±0.004^b	0.64±0.08^cd	0.097±0.008^d	0.47±0.07^ab
	CV(%)	15.0	6.5	15.4	17.3	23.2	22.8	5.9
香港软尾生菜 Hong kong soft tailed lettuce	A₁	2.3±0.1^e	21.6±1.2^a	0.52±0.06^c	0.041±0.004^b	0.56±0.02^c	0.055±0.010^c	0.75±0.05^a
	A₂	3.1±0.1^c	20.0±1.5^abc	0.66±0.07^abc	0.047±0.003^ab	0.86±0.04^b	0.081±0.020^b	0.58±0.03^b
	A₃	3.1±0.1^bc	19.5±2.3^abc	0.68±0.06^ab	0.049±0.007^ab	0.90±0.17^b	0.090±0.017^b	0.55±0.06^b
	A₄	3.3±0.2^ab	18.5±1.1^bc	0.70±0.10^ab	0.051±0.005^ab	0.96±0.08^b	0.096±0.006^ab	0.53±0.03^b
	A₅	3.4±0.1^a	17.7±0.9^c	0.74±0.10^a	0.056±0.008^a	1.26±0.17^a	0.118±0.010^a	0.48±0.07^b
	A₆	2.7±0.1^d	18.1±1.1^c	0.62±0.07^abc	0.047±0.007^ab	0.84±0.05^b	0.092±0.018^b	0.51±0.09^b
	A₇	2.4±0.2^e	20.9±1.3^ab	0.57±0.10^bc	0.044±0.007^b	0.81±0.09^b	0.080±0.009^b	0.55±0.03^b
	CV(%)	15.1	7.6	12.0	10.2	23.8	21.8	15.4
F值 F value	品种 (V)	56.8^**	170.2^**	23.0^**	32.4^**	20.6^**	37.3^**	16.2^**
	处理(T)	95.5^**	24.9^**	18.7^**	12.5^**	59.5^**	52.1^**	14.4^**
	V×T	4.7^**	1.8^*	0.6	0.8	2.1^*	1.8^*	1.0

表1 多效唑显著抑制下喷施赤霉素叶用莴苣幼苗品质变化

Tab.1 Effects of spraying gibberellin on seedling quality of leaf lettuce under significant inhibition of paclobutrazol

品种 Variety	处理 Treat- ment	株高 Height (cm)	SPAD值 SPAD value	根鲜重 Root fresh weight(g)	根干重 Root dry weight(g)	地上部鲜重 Shoot fresh weight(g)	地上部干重 Shoot dry weight(g)	根冠比 Root shoot ratio
奶油生菜 Butter lettuce	A₁	2.1±0.1^c	20.8±1.8^a	0.44±0.02^d	0.036±0.001^a	0.53±0.04^e	0.061±0.005^e	0.59±0.05^a
	A₂	2.4±0.2^b	18.4±1.1^c	0.47±0.0 $5 c d$	0.038±0.004^a	0.62±0.0 $8 d e$	0.070±0.003^d	0.54±0.0 $6 a b$
	A₃	2.6±0.1^ab	17.9±0.8^bc	0.52±0.03^abc	0.042±0.006^a	0.82±0.05^abc	0.087±0.010^ab	0.48±0.06^ab
	A₄	2.8±0.2^a	17.7±1.9^bc	0.55±0.02^ab	0.043±0.009^a	0.84±0.09^ab	0.091±0.008^ab	0.47±0.07^b
	A₅	2.9±0.2^a	17.0±0.6^c	0.57±0.06^a	0.044±0.005^a	0.89±0.09^a	0.095±0.005^a	0.46±0.05^b
	A₆	2.6±0.2^ab	20.0±1^ab	0.49±0.05^bcd	0.040±0.002^a	0.74±0.05^bc	0.085±0.005^bc	0.47±0.05^b
	A₇	2.4±0.2^bc	21.2±0.6^a	0.46±0.05^cd	0.037±0.004^a	0.72±0.06^cd	0.076±0.004^cd	0.49±0.08^ab
	CV(%)	10.4	8.7	9.7	7.5	17.5	15.1	9.8
耐抽薹生菜 Bolting to lerance lettuce	A₁	2.2±0.1^d	23.5±1.2^a	0.48±0.03^e	0.032±0.006^c	0.57±0.03^d	0.059±0.004^d	0.55±0.05^a
	A₂	2.6±0.1^bc	21.1±1.5^b	0.58±0.03^bc	0.040±0.003^ab	0.76±0.05^bc	0.083±0.008^abc	0.49±0.09^ab
	A₃	2.7±0.1^b	20.8±0.5^bc	0.60±0.02^bc	0.041±0.004^ab	0.83±0.10^ab	0.085±0.009^abc	0.48±0.04^ab
	A₄	3.0±0.2^a	20.3±1.2^bc	0.63±0.05^ab	0.042±0.003^ab	0.86±0.04^ab	0.090±0.010^ab	0.47±0.05^ab
	A₅	3.2±0.2^a	18.6±1.0^c	0.65±0.03^a	0.044±0.003^a	0.89±0.07^a	0.096±0.003^a	0.44±0.02^b
	A₆	2.4±0.1^cd	19.6±1.7^bc	0.55±0.03^cd	0.038±0.003^abc	0.71±0.05^c	0.078±0.006^bc	0.48±0.07^ab
	A₇	2.3±0.2^d	20.9±1.4^bc	0.53±0.03^de	0.037±0.002^bc	0.64±0.06^cd	0.075±0.008^c	0.50±0.03^ab
	CV(%)	14.1	7.3	10.3	9.8	15.7	15.1	6.3
玻璃生菜 Lceberg lettuce	A₁	2.2±0.1^e	23.8±2.3^a	0.54±0.07^c	0.044±0.008^b	0.61±0.07^e	0.059±0.004^d	0.74±0.07^a
	A₂	2.7±0.2^cd	21.2±0.7^ab	0.64±0.05^b	0.053±0.007^ab	0.85±0.08^cd	0.095±0.009^c	0.56±0.08^b
	A₃	3.6±0.1^b	20.5±2.0^bc	0.68±0.03^ab	0.057±0.002^a	0.97±0.09^bc	0.104±0.005^bc	0.55±0.01^b
	A₄	3.7±0.2^b	17.6±1.1^d	0.70±0.03^ab	0.059±0.009^a	1.05±0.08^ab	0.109±0.006^ab	0.54±0.03^b
	A₅	4.2±0.1^a	17.0±0.7^d	0.74±0.07^a	0.062±0.006^a	1.17±0.08^a	0.120±0.012^a	0.52±0.02^b
	A₆	3.0±0.2^c	17.3±1.3^d	0.66±0.03^ab	0.056±0.004^a	0.89±0.08^cd	0.106±0.008^bc	0.53±0.03^b
	A₇	2.5±0.2^de	18.5±0.6^cd	0.62±0.06^bc	0.054±0.003^ab	0.77±0.06^d	0.101±0.001^bc	0.54±0.02^b
	CV(%)	22.7	13.0	9.6	10.5	20.5	19.5	13.6
罗马直立生菜 Roman upright lettuce	A₁	1.9±0.1^d	30.8±0.3^a	0.46±0.01^e	0.034±0.002^c	0.55±0.05^d	0.068±0.011^e	0.50±0.04^a
	A₂	2.3±0.2^c	28.3±0.2^b	0.53±0.05^cde	0.047±0.001^b	0.67±0.04^cd	0.099±0.004^d	0.48±0.01^ab
	A₃	2.7±0.1^ab	27.8±1.7^bc	0.58±0.09^bcd	0.049±0.008^b	0.69±0.02^c	0.104±0.008^cd	0.47±0.05^ab
	A₄	2.9±0.2^a	26.0±0.6^d	0.62±0.02^abc	0.056±0.005^ab	0.92±0.08^b	0.120±0.006^bc	0.46±0.03^ab
	A₅	3.0±0.1^a	25.4±1.2^d	0.71±0.09^a	0.061±0.006^a	1.06±0.07^a	0.146±0.008^a	0.41±0.06^b
	A₆	2.5±0.2^bc	26.6±0.6^cd	0.64±0.12^ab	0.055±0.010^ab	0.84±0.10^b	0.123±0.013^b	0.45±0.05^ab
	A₇	2.4±0.2^bc	27.9±0.8^bc	0.49±0.05^de	0.046±0.004^b	0.64±0.08^cd	0.097±0.008^d	0.47±0.07^ab
	CV(%)	15.0	6.5	15.4	17.3	23.2	22.8	5.9
香港软尾生菜 Hong kong soft tailed lettuce	A₁	2.3±0.1^e	21.6±1.2^a	0.52±0.06^c	0.041±0.004^b	0.56±0.02^c	0.055±0.010^c	0.75±0.05^a
	A₂	3.1±0.1^c	20.0±1.5^abc	0.66±0.07^abc	0.047±0.003^ab	0.86±0.04^b	0.081±0.020^b	0.58±0.03^b
	A₃	3.1±0.1^bc	19.5±2.3^abc	0.68±0.06^ab	0.049±0.007^ab	0.90±0.17^b	0.090±0.017^b	0.55±0.06^b
	A₄	3.3±0.2^ab	18.5±1.1^bc	0.70±0.10^ab	0.051±0.005^ab	0.96±0.08^b	0.096±0.006^ab	0.53±0.03^b
	A₅	3.4±0.1^a	17.7±0.9^c	0.74±0.10^a	0.056±0.008^a	1.26±0.17^a	0.118±0.010^a	0.48±0.07^b
	A₆	2.7±0.1^d	18.1±1.1^c	0.62±0.07^abc	0.047±0.007^ab	0.84±0.05^b	0.092±0.018^b	0.51±0.09^b
	A₇	2.4±0.2^e	20.9±1.3^ab	0.57±0.10^bc	0.044±0.007^b	0.81±0.09^b	0.080±0.009^b	0.55±0.03^b
	CV(%)	15.1	7.6	12.0	10.2	23.8	21.8	15.4
F值 F value	品种 (V)	56.8^**	170.2^**	23.0^**	32.4^**	20.6^**	37.3^**	16.2^**
	处理(T)	95.5^**	24.9^**	18.7^**	12.5^**	59.5^**	52.1^**	14.4^**
	V×T	4.7^**	1.8^*	0.6	0.8	2.1^*	1.8^*	1.0

表2 多效唑显著抑制下喷施赤霉素叶用莴苣幼苗叶形变化

Tab.2 Effects of spraying gibberellin on seedling leaf type of leaf lettuce under significant inhibition of paclobutrazol

品种 Variety	处理 Treatment	总叶面积 Total leaf area (cm²)	总叶长 Total leaf length (cm)	总叶宽 Total leaf width (cm)	最大功能叶叶长 Maximum function leaf length (cm)	最大功能叶叶宽 Maximum function leaf width (cm)
奶油生菜 Butter lettuce	A₁	16.9±0.7^c	14.9±0.4^d	10.8±0.7^b	3.02±0.01^c	2.15±0.18^b
	A₂	22.9±1.5^b	16.4±1.1^cd	12.1±0.3^ab	3.12±0.23^c	2.41±0.32^ab
	A₃	24.9±2.2^ab	17.6±1.0^bc	12.7±0.5^a	3.49±0.25^ab	2.58±0.29^a
	A₄	25.6±2.9^ab	18.6±0.8^ab	13.2±0.9^a	3.57±0.21^a	2.60±0.27^a
	A₅	27.6±1.0^a	19.4±0.8^a	13.7±1.1^a	3.74±0.30^a	2.62±0.10^a
	A₆	24.8±1.7^ab	18.6±0.9^ab	13.4±1.4^a	3.51±0.15^a	2.51±0.10^ab
	A₇	23.3±1.4^b	18.1±0.9^abc	12.8±0.5^a	3.15±0.11^bc	2.49±0.18^ab
	CV(%)	14.3	8.7	7.7	8.1	6.6
耐抽薹生菜 Bolting to lerance lettuce	A₁	13.6±1.1^d	13.6±0.1^d	10.0±0.6^e	2.69±0.09^e	2.15±0.21^d
	A₂	17.1±1.4^c	16.9±1.9^b	12.0±0.9^d	3.02±0.15^c	2.43±0.11^bc
	A₃	24.7±1.8^a	18.8±0.3^a	13.4±0.3^bc	3.22±0.09^b	2.59±0.14^ab
	A₄	25.3±1.3^a	19.3±0.3^a	13.9±0.9^ab	3.50±0.09^a	2.69±0.11^a
	A₅	26.9±1.9^a	20.1±1.7^a	14.8±1.0^a	3.61±0.11^a	2.72±0.11^a
	A₆	21.8±0.8^b	15.7±0.4^bc	12.8±0.2^bcd	2.95±0.07^cd	2.55±0.08^abc
	A₇	19.8±1.4^b	14.4±0.6^cd	12.3±0.8^cd	2.81±0.18^de	2.31±0.08^cd
	CV(%)	22.4	14.9	12.1	11.2	8.3
玻璃生菜 Lceberg lettuce	A₁	16.4±2.2^e	13.2±1.6^c	10.2±1.3^c	3.33±0.31^c	2.51±0.14^d
	A₂	27.3±2^cd	17.6±1.7^b	13.5±0.6^b	3.94±0.20^b	3.08±0.22^c
	A₃	29.8±1.1^bc	18.4±1.3^b	13.8±0.5^b	4.59±0.13^a	3.42±0.13^ab
	A₄	36.3±1.5^a	22.2±1.4^a	16.5±0.5^a	4.71±0.11^a	3.49±0.12^a
	A₅	39.6±0.8^a	23.6±1.0^a	16.9±0.4^a	4.90±0.16^a	3.52±0.08^a
	A₆	32.2±3.6^b	19.4±1.0^b	14.4±1.2^b	3.94±0.31^b	3.23±0.3^abc
	A₇	25.9±1.6^d	18.1±0.4^b	13.7±1.2^b	3.67±0.33^bc	3.12±0.09^bc
	CV(%)	25.6	17.9	15.7	14.1	11.0
罗马直立生菜 Roman upright lettuce	A₁	12.1±1.4^e	14.4±0.6^e	9.3±1.0^c	2.78±0.23^d	2.09±0.02^d
	A₂	20.7±1.8^d	16.6±1.0^d	12.5±0.5^b	3.27±0.13^bc	2.39±0.15^bc
	A₃	21.6±1.4^cd	17.4±0.7^cd	12.9±1.0^ab	3.38±0.15^bc	2.45±0.04^bc
	A₄	24.4±2.6^bc	19.0±0.8^b	13.4±0.4^ab	3.50±0.16^b	2.59±0.19^ab
	A₅	28.4±2.1^a	20.6±0.6^a	14.1±0.2^a	3.83±0.14^a	2.72±0.10^a
	A₆	25.9±1.0^ab	20.1±0.8^ab	13.5±0.7^ab	3.40±0.19^bc	2.34±0.1b^cd
	A₇	20.7±2.2^d	18.8±1.4^bc	12.5±1.2^b	3.10±0.11^c	2.24±0.13^cd
	CV(%)	23.7	11.9	12.3	9.9	8.8
香港软尾生菜 Hong kong soft tailed lettuce	A₁	16.1±1.5^c	15.0±1.3^d	10.7±1.3^b	3.00±0.26^d	2.34±0.14^c
	A₂	29.1±0.6^b	19.8±0.2^abc	14.9±0.4^a	4.01±0.30^abc	3.05±0.13^ab
	A₃	31.5±3.0^ab	20.8±1.7^ab	15.4±1.1^a	4.24±0.27^ab	3.15±0.21^ab
	A₄	32.4±4.6^ab	21.4±2.8^ab	15.8±0.6^a	4.36±0.34^a	3.19±0.40^ab
	A₅	34.5±2.5^a	22.8±1.8^a	16.5±1.0^a	4.50±0.30^a	3.49±0.43^a
	A₆	28.4±3.2^b	18.1±1.8^bcd	15.9±0.7^a	3.79±0.19^bc	2.90±0.28^bc
	A₇	28.0±2.3^b	16.5±2.2^cd	15.4±0.6^a	3.69±0.28^c	2.88±0.18^bc
	CV(%)	20.9	14.5	13.0	12.9	11.8
F值 F value	品种(V)	73.6^**	11.8^**	33.8^**	98.3^**	67.4^**
	处理(T)	98.5^**	51.0^**	54.8^**	57.0^**	22.2^**
	V×T	3.2^**	3.4^**	1.7*	2.3^**	0.9

表2 多效唑显著抑制下喷施赤霉素叶用莴苣幼苗叶形变化

Tab.2 Effects of spraying gibberellin on seedling leaf type of leaf lettuce under significant inhibition of paclobutrazol

品种 Variety	处理 Treatment	总叶面积 Total leaf area (cm²)	总叶长 Total leaf length (cm)	总叶宽 Total leaf width (cm)	最大功能叶叶长 Maximum function leaf length (cm)	最大功能叶叶宽 Maximum function leaf width (cm)
奶油生菜 Butter lettuce	A₁	16.9±0.7^c	14.9±0.4^d	10.8±0.7^b	3.02±0.01^c	2.15±0.18^b
	A₂	22.9±1.5^b	16.4±1.1^cd	12.1±0.3^ab	3.12±0.23^c	2.41±0.32^ab
	A₃	24.9±2.2^ab	17.6±1.0^bc	12.7±0.5^a	3.49±0.25^ab	2.58±0.29^a
	A₄	25.6±2.9^ab	18.6±0.8^ab	13.2±0.9^a	3.57±0.21^a	2.60±0.27^a
	A₅	27.6±1.0^a	19.4±0.8^a	13.7±1.1^a	3.74±0.30^a	2.62±0.10^a
	A₆	24.8±1.7^ab	18.6±0.9^ab	13.4±1.4^a	3.51±0.15^a	2.51±0.10^ab
	A₇	23.3±1.4^b	18.1±0.9^abc	12.8±0.5^a	3.15±0.11^bc	2.49±0.18^ab
	CV(%)	14.3	8.7	7.7	8.1	6.6
耐抽薹生菜 Bolting to lerance lettuce	A₁	13.6±1.1^d	13.6±0.1^d	10.0±0.6^e	2.69±0.09^e	2.15±0.21^d
	A₂	17.1±1.4^c	16.9±1.9^b	12.0±0.9^d	3.02±0.15^c	2.43±0.11^bc
	A₃	24.7±1.8^a	18.8±0.3^a	13.4±0.3^bc	3.22±0.09^b	2.59±0.14^ab
	A₄	25.3±1.3^a	19.3±0.3^a	13.9±0.9^ab	3.50±0.09^a	2.69±0.11^a
	A₅	26.9±1.9^a	20.1±1.7^a	14.8±1.0^a	3.61±0.11^a	2.72±0.11^a
	A₆	21.8±0.8^b	15.7±0.4^bc	12.8±0.2^bcd	2.95±0.07^cd	2.55±0.08^abc
	A₇	19.8±1.4^b	14.4±0.6^cd	12.3±0.8^cd	2.81±0.18^de	2.31±0.08^cd
	CV(%)	22.4	14.9	12.1	11.2	8.3
玻璃生菜 Lceberg lettuce	A₁	16.4±2.2^e	13.2±1.6^c	10.2±1.3^c	3.33±0.31^c	2.51±0.14^d
	A₂	27.3±2^cd	17.6±1.7^b	13.5±0.6^b	3.94±0.20^b	3.08±0.22^c
	A₃	29.8±1.1^bc	18.4±1.3^b	13.8±0.5^b	4.59±0.13^a	3.42±0.13^ab
	A₄	36.3±1.5^a	22.2±1.4^a	16.5±0.5^a	4.71±0.11^a	3.49±0.12^a
	A₅	39.6±0.8^a	23.6±1.0^a	16.9±0.4^a	4.90±0.16^a	3.52±0.08^a
	A₆	32.2±3.6^b	19.4±1.0^b	14.4±1.2^b	3.94±0.31^b	3.23±0.3^abc
	A₇	25.9±1.6^d	18.1±0.4^b	13.7±1.2^b	3.67±0.33^bc	3.12±0.09^bc
	CV(%)	25.6	17.9	15.7	14.1	11.0
罗马直立生菜 Roman upright lettuce	A₁	12.1±1.4^e	14.4±0.6^e	9.3±1.0^c	2.78±0.23^d	2.09±0.02^d
	A₂	20.7±1.8^d	16.6±1.0^d	12.5±0.5^b	3.27±0.13^bc	2.39±0.15^bc
	A₃	21.6±1.4^cd	17.4±0.7^cd	12.9±1.0^ab	3.38±0.15^bc	2.45±0.04^bc
	A₄	24.4±2.6^bc	19.0±0.8^b	13.4±0.4^ab	3.50±0.16^b	2.59±0.19^ab
	A₅	28.4±2.1^a	20.6±0.6^a	14.1±0.2^a	3.83±0.14^a	2.72±0.10^a
	A₆	25.9±1.0^ab	20.1±0.8^ab	13.5±0.7^ab	3.40±0.19^bc	2.34±0.1b^cd
	A₇	20.7±2.2^d	18.8±1.4^bc	12.5±1.2^b	3.10±0.11^c	2.24±0.13^cd
	CV(%)	23.7	11.9	12.3	9.9	8.8
香港软尾生菜 Hong kong soft tailed lettuce	A₁	16.1±1.5^c	15.0±1.3^d	10.7±1.3^b	3.00±0.26^d	2.34±0.14^c
	A₂	29.1±0.6^b	19.8±0.2^abc	14.9±0.4^a	4.01±0.30^abc	3.05±0.13^ab
	A₃	31.5±3.0^ab	20.8±1.7^ab	15.4±1.1^a	4.24±0.27^ab	3.15±0.21^ab
	A₄	32.4±4.6^ab	21.4±2.8^ab	15.8±0.6^a	4.36±0.34^a	3.19±0.40^ab
	A₅	34.5±2.5^a	22.8±1.8^a	16.5±1.0^a	4.50±0.30^a	3.49±0.43^a
	A₆	28.4±3.2^b	18.1±1.8^bcd	15.9±0.7^a	3.79±0.19^bc	2.90±0.28^bc
	A₇	28.0±2.3^b	16.5±2.2^cd	15.4±0.6^a	3.69±0.28^c	2.88±0.18^bc
	CV(%)	20.9	14.5	13.0	12.9	11.8
F值 F value	品种(V)	73.6^**	11.8^**	33.8^**	98.3^**	67.4^**
	处理(T)	98.5^**	51.0^**	54.8^**	57.0^**	22.2^**
	V×T	3.2^**	3.4^**	1.7*	2.3^**	0.9

图1 多效唑显著抑制下喷施赤霉素叶用莴苣幼苗地上部可溶性固形物含量变化注:不同小写字母的值在同一品种下不同赤霉素质量浓度间差异达5%显著水平;**表示在0.01水平上差异显著,ns 表示差异不显著

Fig.1 Effects of spraying gibberellin on the ground leaf soluble solids content of the seedlings of leaf lettuce under significant inhibition of paclobutrazol Note: different lowercase letters in the same column indicate significantly different concentrations of gibberellin sprayed of the same variety at 5%.** indicates significant difference at the 0.01 level, ns: No significance

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喷施赤霉素缓解多效唑对叶用莴苣幼苗的抑制作用

Spraying gibberellin to alleviate the Inhibition of paclobutrazol on leaf lettuce seedlings

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