A New Flue-cured Tobacco Strain ‘HN2146’: Effects of Cultivation Measures on Agronomic Characters and Yield

doi:10.11924/j.issn.1000-6850.casb2021-0687

Abstract

Abstract:

To explore the effects of cultivation measures on agronomic characters and yield of flue-cured tobacco strain ‘HN2146’ in Chenzhou tobacco-growing area, orthogonal experiments were carried out on the interaction of planting density, nitrogen application rate and the number of retained leaves. In terms of agronomic characters, plant height increased with the increase of planting density, the internodal distance first decreased and then increased with the increase of planting density, and stem circumference, waist leaf length, waist leaf width and leaf area all decreased with the increase of planting density. All agronomic characters increased first and then decreased with the increase of nitrogen application rate. The number of retained leaves was the key factor affecting plant height, stem circumference, internodal distance and waist leaf length. In terms of yield, the yield decreased with the increase of planting density, first increased and then decreased with the increase of nitrogen application rate, and first decreased and then increased with the increase of the number of retained leaves. On the whole, the recommended optimal cultivation measure combination is as follows: the planting density is 55 cm×120 cm, the nitrogen application rate is 150 kg/hm², and the number of retained leaves is 18 per plant.

Key words: flue-cured tobacco, planting density, nitrogen application rate, number of retained leaves, agronomic characters, yield

CLC Number:

S572

LI Yunxia, LI Lei, LI Sijun, ZHENG Weiwei, ZENG Bei. A New Flue-cured Tobacco Strain ‘HN2146’: Effects of Cultivation Measures on Agronomic Characters and Yield[J]. Chinese Agricultural Science Bulletin, 2022, 38(16): 13-17.

Figures/Tables 3

References 25

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编号	代号	株高/cm	茎围/cm	节距/cm	腰叶长/cm	腰叶宽/cm	叶面积/cm²	产量/(kg/hm²)
T1	A1B1C1	104.9abA	9.1a	5.8abAB	71.5a	24.3a	1102.4a	2197.5bABC
T2	A1B2C2	106.8abA	9.4a	5.3cdBC	72.7a	24.5a	1130.1a	2059.5bC
T3	A1B3C3	110.1aA	9.4a	5.00dC	70.6a	23.5a	1052.7a	2043.6bC
T4	A2B1C2	105.5abA	9.6a	5.2cdBC	72.9a	24.5a	1133.2a	2130.6bABC
T5	A2B2C3	110.6aA	9.7a	5.0dC	72.1a	24.6a	1125.4a	2346.6abABC
T6	A2B3C1	100.5bA	9.1a	5.5abcAB	71.4a	24.1a	1091.8a	2426.6abABC
T7	A3B1C3	102.6bA	9.7a	5.0dC	71.5a	24.6a	1116.0a	2625.9aAB
T8	A3B2C1	105.7abA	9.5a	5.9aA	72.4a	25.2a	1157.6a	2730.3aA
T9	A3B3C2	107.3abA	9.5a	5.5bcAB	72.7a	24.7a	1139.4a	2640.0aAB

编号	代号	株高/cm	茎围/cm	节距/cm	腰叶长/cm	腰叶宽/cm	叶面积/cm²	产量/(kg/hm²)
T1	A1B1C1	104.9abA	9.1a	5.8abAB	71.5a	24.3a	1102.4a	2197.5bABC
T2	A1B2C2	106.8abA	9.4a	5.3cdBC	72.7a	24.5a	1130.1a	2059.5bC
T3	A1B3C3	110.1aA	9.4a	5.00dC	70.6a	23.5a	1052.7a	2043.6bC
T4	A2B1C2	105.5abA	9.6a	5.2cdBC	72.9a	24.5a	1133.2a	2130.6bABC
T5	A2B2C3	110.6aA	9.7a	5.0dC	72.1a	24.6a	1125.4a	2346.6abABC
T6	A2B3C1	100.5bA	9.1a	5.5abcAB	71.4a	24.1a	1091.8a	2426.6abABC
T7	A3B1C3	102.6bA	9.7a	5.0dC	71.5a	24.6a	1116.0a	2625.9aAB
T8	A3B2C1	105.7abA	9.5a	5.9aA	72.4a	25.2a	1157.6a	2730.3aA
T9	A3B3C2	107.3abA	9.5a	5.5bcAB	72.7a	24.7a	1139.4a	2640.0aAB

指标	因素	各因素水平均值			极小值	极大值	极差(R)
指标	因素	水平1	水平2	水平3	极小值	极大值	极差(R)
株高/cm	种植密度(A)	107.3	105.5	105.2	105.2	107.3	2.1
	施氮量(B)	104.3	107.7	106.0	104.3	107.7	3.4
	留叶数(C)	103.7	106.5	107.8	103.7	107.8	4.1
茎围/cm	种植密度(A)	9.3	9.5	9.6	9.3	9.6	0.3
	施氮量(B)	9.4	9.5	9.3	9.3	9.5	0.2
	留叶数(C)	9.2	9.5	9.6	9.2	9.6	0.4
节距/cm	种植密度(A)	5.4	5.2	5.5	5.2	5.5	0.3
	施氮量(B)	5.3	5.4	5.3	5.3	5.4	0.1
	留叶数(C)	5.7	5.3	5.0	5.0	5.7	0.7
腰叶长/cm	种植密度(A)	71.6	72.1	72.2	71.6	72.2	0.6
	施氮量(B)	72.0	72.4	71.6	71.6	72.4	0.8
	留叶数(C)	71.8	72.8	71.4	71.4	72.8	1.4
腰叶宽/cm	种植密度(A)	24.1	24.4	24.8	24.1	24.8	0.7
	施氮量(B)	24.5	24.8	24.2	24.2	24.8	0.6
	留叶数(C)	24.5	24.6	24.2	24.2	24.6	0.4
叶面积/cm²	种植密度(A)	1095.1	1116.8	1137.7	1095.1	1137.7	42.6
	施氮量(B)	1117.2	1137.7	1094.6	1094.6	1137.7	43.1
	留叶数(C)	1117.3	1134.3	1098.0	1098.0	1134.3	36.2
产量/(kg/hm²)	种植密度(A)	2100.2	2301.3	2665.4	2100.2	2665.4	565.2
	施氮量(B)	2318.0	2378.8	2370.1	2318.0	2378.8	60.8
	留叶数(C)	2451.5	2276.7	2338.7	2276.7	2451.5	174.8

指标	因素	各因素水平均值			极小值	极大值	极差(R)
指标	因素	水平1	水平2	水平3	极小值	极大值	极差(R)
株高/cm	种植密度(A)	107.3	105.5	105.2	105.2	107.3	2.1
	施氮量(B)	104.3	107.7	106.0	104.3	107.7	3.4
	留叶数(C)	103.7	106.5	107.8	103.7	107.8	4.1
茎围/cm	种植密度(A)	9.3	9.5	9.6	9.3	9.6	0.3
	施氮量(B)	9.4	9.5	9.3	9.3	9.5	0.2
	留叶数(C)	9.2	9.5	9.6	9.2	9.6	0.4
节距/cm	种植密度(A)	5.4	5.2	5.5	5.2	5.5	0.3
	施氮量(B)	5.3	5.4	5.3	5.3	5.4	0.1
	留叶数(C)	5.7	5.3	5.0	5.0	5.7	0.7
腰叶长/cm	种植密度(A)	71.6	72.1	72.2	71.6	72.2	0.6
	施氮量(B)	72.0	72.4	71.6	71.6	72.4	0.8
	留叶数(C)	71.8	72.8	71.4	71.4	72.8	1.4
腰叶宽/cm	种植密度(A)	24.1	24.4	24.8	24.1	24.8	0.7
	施氮量(B)	24.5	24.8	24.2	24.2	24.8	0.6
	留叶数(C)	24.5	24.6	24.2	24.2	24.6	0.4
叶面积/cm²	种植密度(A)	1095.1	1116.8	1137.7	1095.1	1137.7	42.6
	施氮量(B)	1117.2	1137.7	1094.6	1094.6	1137.7	43.1
	留叶数(C)	1117.3	1134.3	1098.0	1098.0	1134.3	36.2
产量/(kg/hm²)	种植密度(A)	2100.2	2301.3	2665.4	2100.2	2665.4	565.2
	施氮量(B)	2318.0	2378.8	2370.1	2318.0	2378.8	60.8
	留叶数(C)	2451.5	2276.7	2338.7	2276.7	2451.5	174.8

因素	处理	株高/cm	茎围/cm	节距/cm	腰叶长/cm	腰叶宽/cm	叶面积/cm	产量/(kg/hm²)
密度	A1	107.3a	9.3a	5.4a	71.6a	24.1a	1095.1a	2100.2bB
	A2	105.5a	9.5a	5.2a	72.1a	24.4a	1116.8a	2301.3bB
	A3	105.2a	9.6a	5.5a	72.2a	24.8a	1137.7 a	2665.4aA
施氮量	B1	104.3a	9.4a	5.3a	72.0a	24.5a	1117.2a	2318.0a
	B2	107.7a	9.5a	5.4a	72.4a	24.8a	1137.7a	2378.8a
	B3	106.0a	9.3a	5.3a	71.6a	24.1a	1094.6a	2370.1a
留叶数	C1	103.7a	9.2aA	5.7aA	71.8abA	24.5aA	1117.3a	2451.5a
	C2	106.5a	9.5abA	5.3bB	72.8aA	24.6aA	1134.3a	2276.7a
	C3	107.8a	9.6aA	5.0cC	71.4bA	24.2aA	1098.0a	2338.7a