75%肟菌·戊唑醇对向日葵菌核病防治效果的研究

doi:10.16035/j.issn.1001-7283.2024.03.034

Abstract

Abstract:

The indoor virulence test of 75% trifloxystrobin·tebuconazole on Sclerotinia sclerotiorum and the field control effect of Sclerotinia were studied by indoor in vitro determination and field experiment. The results showed that 75% trifloxystrobin·tebuconazole had a good inhibitory effects on S.sclerotiorum, and the EC₅₀ was 0.0370 μg/mL. It had a good field control effects on sunflower Sclerotiniose, and had the best control effect at 450 g/ha, with a control effects of 92.78%. The control effects in the flowering period was better than that in other periods; Moreover, the prevention effects of spraying once at the bud period, flowering period, full bloom, and the late flowering period was the best, and it had obvious increasing effects in yield. The production results showed that the yield of 75% trifloxystrobin·tebuconazole sprayed four times was significantly higher than those of the CK and the isobacterium fluridamine treatments, and the yield increased by 170.62% and 128.79%, respectively.

Key words: 75% trifloxystrobin·tebuconazole, Sclerotinia sclerotiorum, Control effect

Li Hu, Chang Haicheng, Chen Liu, Li Hepeng, Zheng Liqiu, Guan Jing, Li Haiyan, Meng Qinglin. Study on the Control Effects of 75% Trifloxystrobin·Tebuconazole on the Sunflower Sclerotiniose[J].Crops, 2024, 40(3): 252-256.

Figures/Tables 5

Table 1

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Table 5

Effects of control effect for S.sclerotulia and yield factors with different application times"

处理 Treatment		第1次调查 The first investigation			第2次调查 The second investigation			空壳率 Empty- nut ratio (%)	病虫率 Disease and pest ratio (%)	实测单盘重 Actual single disc weight (g)	产量 Yield (kg/hm²)	增产 Yield increase (%)
处理 Treatment		发病率 Morbidity (%)	病情指数 Disease index	防治效果 Control effect (%)	发病率 Morbidity (%)	病情指数 Disease index	防治效果 Control effect (%)	空壳率 Empty- nut ratio (%)	病虫率 Disease and pest ratio (%)	实测单盘重 Actual single disc weight (g)	产量 Yield (kg/hm²)	增产 Yield increase (%)
始花期 Flowering period	75%肟菌·戊唑醇	31.05	24.28fF	61.29	44.79	39.76eE	40.36	5.60kJ	0.87kK	236.90aA	1446.56	107.05
	菌核净	46.89	34.37bB	43.78	64.28	54.27bB	18.60	9.12gG	2.92cC	225.87cC	1187.38	69.95
	异菌氟啶胺	45.24	33.98cC	44.42	59.85	50.46cC	24.31	8.67hHG	1.87fF	228.16bB	1126.34	61.22
始花+盛花期 Flowering period+ full bloom	75%肟菌·戊唑醇	27.81	14.73kK	75.91	42.74	27.55hH	58.68	18.75bB	2.75dD	207.30iJ	1526.53	118.50
	菌核净	39.46	29.56dD	51.65	59.87	44.36dD	33.46	16.67cC	3.67aA	217.21eE	1227.01	75.63
	异菌氟啶胺	36.13	26.84eE	56.10	51.23	39.28eE	41.08	20.12aA	3.14bB	208.23iH	1344.82	92.49
现蕾+始花+盛花 Bud period+flowering period+full bloom	75%肟菌·戊唑醇	13.83	9.67lL	84.18	19.46	16.95kK	74.57	8.22iH	1.41hH	189.13mL	1599.00	128.87
	菌核净	34.67	22.46gG	63.26	40.67	30.23fF	54.66	10.17eE	2.18eE	206.12jK	1384.45	98.16
	异菌氟啶胺	32.87	21.47hH	64.88	38.34	28.91gG	56.64	9.85fF	1.54gG	198.63kL	1398.01	100.10
现蕾+始花+盛花+开花末期 Bud period+flowering period+full bloom+ end flowering period	75%肟菌·戊唑醇	17.91	9.11lL	85.01	19.55	16.42kK	75.37	4.62mK	1.06jJ	222.17dD	1890.67	170.62
	菌核净	27.92	17.56iI	71.27	38.14	26.18iI	60.73	6.13jI	2.16eE	212.37fF	1436.21	105.57
	异菌氟啶胺	25.96	16.82jJ	72.49	35.22	22.54jJ	66.19	5.25lJ	1.23iI	209.89gG	1467.98	110.12
CK₅		72.04	61.14aA	－	74.21	66.67aA	－	12.11dD	0.48blL	209.39hG	698.65	－

Table 5

References 12

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[8]	姜彩鸽, 宋双, 李茜, 等. 3种药剂对葡萄霜霉病防控剂量研究. 安徽农业科学, 2021, 49(12):156-159.
[9]	张海洋, 李海燕, 孟庆林, 等. 不同杀菌剂对向日葵菌核病的田间防治效果. 作物杂志, 2020(4):202-205.
[10]	宋伟, 唐卫东, 李华雄, 等. 75%肟菌·戊唑醇(拿敌稳)水分散剂防治月季白粉病试验. 现代园艺, 2017(2):20-21.
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处理Treatment	毒力回归方程Virulence regression equation	相关系数Correlation coefficient	EC₅₀ (μg/mL)
75%肟菌·戊唑醇75% trifloxystrobin·tebuconazole	y=1.0814x+6.5501	0.9899	0.0370
40%菌核净WP 40% dimetachlone	y=1.5115x+3.8037	0.9792	6.1859
45%异菌氟啶胺WP 45% iprodione fluridamine	y=0.0828x+5.9662	0.9643	2.1429

接种时间 Vaccination time (d)	处理 Treatment	第1次调查The first investigation			第2次调查The second investigation
接种时间 Vaccination time (d)	处理 Treatment	发病率 Morbidity (%)	病情指数 Disease index	防治效果 Control effect (%)	发病率 Morbidity (%)	病情指数 Disease index	防治效果 Control effect (%)
3	75%肟菌·戊唑醇	15.17	9.45bB	82.82	16.89	16.05bB	80.49
	CK	70.72	55.03aA	－	83.61	82.28aA	－
5	75%肟菌·戊唑醇	19.49	10.85bB	81.79	31.81	28.49bB	64.28
	CK	75.00	60.05aA	－	83.17	79.76aA	－
7	75%肟菌·戊唑醇	9.92	4.54bB	72.63	14.39	11.34bB	69.49
	CK	33.04	16.60aA	－	40.46	37.17aA	－
10	75%肟菌·戊唑醇	10.95	4.44bB	65.46	12.25	12.25bB	51.19
	CK	20.17	12.86aA	－	28.06	28.06aA	－
14	75%肟菌·戊唑醇	9.78	5.19bB	67.89	12.91	12.91bB	52.41
	CK	24.32	16.16aA	－	25.97	25.97aA	－

处理 Treatment	第1次调查 The first investigation			第2次调查 The second investigation			空壳率 Empty- nut ratio (%)	病虫率 Disease and pest ratio (%)	实测单盘重 Actual single disc weight (g)	产量 Yield (kg/hm²)	增产 Yield increase (%)
处理 Treatment	发病率 Morbidity (%)	病情指数 Disease index	防治效果 Control effect (%)	发病率 Morbidity (%)	病情指数 Disease index	防治效果 Control effect (%)	空壳率 Empty- nut ratio (%)	病虫率 Disease and pest ratio (%)	实测单盘重 Actual single disc weight (g)	产量 Yield (kg/hm²)	增产 Yield increase (%)
T1	24.28	14.73dD	74.56	23.04	20.59dD	69.12	8.88gG	0.26gG	246.03aA	1988.13	184.57
T2	18.68	9.94eE	82.38	18.64	16.53eE	75.21	19.27aA	0.55eE	176.47eE	1499.76	114.67
T3	13.59	9.10fF	85.24	18.79	15.15fF	77.27	9.16fF	1.33cC	213.93cC	1848.55	164.59
T4	11.04	4.29gG	92.78	13.33	10.76gG	83.86	5.14hH	0.48fF	224.10bB	2037.76	191.67
T5	11.04	5.64hH	90.84	15.00	12.08hH	81.88	12.73bB	0.58dD	173.63fF	1555.09	122.58
40%菌核净 40% dimetachlone	53.19	41.67bB	31.84	67.21	59.99bB	10.02	11.07dD	1.54aA	150.98gG	1389.80	98.93
45%异菌氟啶胺 45% iprodione fluridamine	49.48	33.82cC	44.68	62.60	55.94cC	16.09	10.28eE	1.46bB	136.92hH	1471.20	110.58
CK₁	72.04	61.14aA	－	74.21	66.67aA	－	12.11cC	0.48fF	209.39dD	698.65	－

处理 Treatment		第1次调查 The first investigation			第2次调查 The second investigation			空壳率 Empty- nut ratio (%)	病虫率 Disease and pest ratio (%)	实测单盘重 Actual single disc weight (g)	产量 Yield (kg/hm²)	增产 Yield increase (%)
处理 Treatment		发病率 Morbidity (%)	病情指数 Disease index	防治效果 Control effect (%)	发病率 Morbidity (%)	病情指数 Disease index	防治效果 Control effect (%)	空壳率 Empty- nut ratio (%)	病虫率 Disease and pest ratio (%)	实测单盘重 Actual single disc weight (g)	产量 Yield (kg/hm²)	增产 Yield increase (%)
现蕾期 Bud period	75%肟菌·戊唑醇	18.78	10.71cC	28.31	24.91	16.24cC	11.06	22.40bB	0.78bB	180.93bB	1542.95	-16.37
	菌核净	22.18	12.64bB	15.39	24.65	17.86bB	2.19	24.32aA	1.65aA	170.31cC	1451.56	-21.32
	异菌氟啶胺	21.65	12.35bB	17.34	23.42	17.25bB	5.53	23.96aA	1.43aA	172.25cC	1504.04	-18.48
	CK₂	24.87	14.94aA	－	25.32	18.26aA	－	5.95cC	0.75bB	221.73aA	1844.98	－
始花期 Flowering period	75%肟菌·戊唑醇	9.36	4.62cC	86.64	15.32	13.48cC	79.78	7.09cC	0.25cC	219.97aA	1938.51	170.69
	菌核净	32.69	24.37aA	29.55	56.84	45.86bB	31.21	23.14aA	1.32aA	215.78cC	1187.38	65.80
	异菌氟啶胺	29.00	22.20bB	35.82	53.36	43.26bB	35.11	21.67aA	1.03aA	216.94bB	1126.34	57.28
	CK₃	72.04	34.59aA	－	74.21	66.67aA	－	16.20bB	0.48bB	214.68dD	716.14	－
盛花期 Full bloom	75%肟菌·戊唑醇	29.93	15.82cC	51.61	31.71	28.56cC	52.88	10.03cC	2.25bB	200.50bB	1455.49	96.10
	菌核净	36.00	31.27aA	4.34	59.65	49.23bB	18.79	14.35aA	3.34aA	210.34aA	1067.07	43.77
	异菌氟啶胺	36.33	29.83bB	8.75	58.34	47.36bB	21.87	11.26bB	3.14aA	200.76bB	1074.93	44.83
	CK₄	48.35	32.69aA	－	65.42	60.62aA	－	10.93cC	0.65cC	187.47cC	742.20	－

Study on the Control Effects of 75% Trifloxystrobin·Tebuconazole on the Sunflower Sclerotiniose

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