Effects of various new fungicides on damage control and economic traits of rice

doi:10.16178/j.issn.0528-9017.20230429

Abstract

Abstract:

Sheath blight is one of the common diseases of rice, and in order to explore the effects of various new fungicides on the damage control effect and economic traits of the main rice varieties in Ningbo, relevant experiments were carried out in Yinzhou, Ningbo. The results showed that tebuconazole, pyroxypropiconazole and benzoxystrobin had better damage control effects on late rice, and had a significant positive impact on economic traits such as grain number per panicle, seed setting rate and yield compared with other treatments. The performance of the new fungicides in early rice was general, and there was no significant difference among the new fungicides and other agents. Early rice sheath blight control can be based on actual needs, and the combination of thiofuramide and other fungicides can be selected.

Key words: rice, sheath blight, fungicides, yield

CLC Number:

S432.4

Cite this article

ZHANG Xiaomeng, XU Jie, LIU Guiliang, MIAO Wentao. Effects of various new fungicides on damage control and economic traits of rice[J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(7): 1667-1670.

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URL: http://www.zjnykx.cn/EN/10.16178/j.issn.0528-9017.20230429

http://www.zjnykx.cn/EN/Y2024/V65/I7/1667

Figures/Tables 7

Table 1 Treatment methods for each variety

处理	有效成分	中早39	宁84	甬优9号
1	75%肟菌·戊唑醇WG	√	√	√
2	19%啶氧·丙环唑SC	√	√	√
3	32.5%苯甲·嘧菌酯SC			√
4	24%噻呋酰胺SC	√	√
5	40%氟氯醚菌唑SC			√
6	17%唑醚·氟环唑SE	√	√	√
CK	清水	√	√	√

Table 1 Treatment methods for each variety

处理	有效成分	中早39	宁84	甬优9号
1	75%肟菌·戊唑醇WG	√	√	√
2	19%啶氧·丙环唑SC	√	√	√
3	32.5%苯甲·嘧菌酯SC			√
4	24%噻呋酰胺SC	√	√
5	40%氟氯醚菌唑SC			√
6	17%唑醚·氟环唑SE	√	√	√
CK	清水	√	√	√

Table 2 The incidence of sheath blight in each treatment in Zhongzao 39

处理	6月15日		6月22日		6月29日		防治效果/ %
处理	丛病率/ %	株病率/ %	丛病率/ %	株病率/ %	丛病率/ %	株病率/ %	防治效果/ %
1	1	0.10	5.5	1.56	8.0	1.79	72.50
2	16	1.40	14.0	1.87	7.5	2.34	64.11
4	2	0.43	16.0	1.90	10.0	2.07	68.25
6	2	0.63	12.0	2.09	16.0	1.88	71.17
CK	10	3.19	28.0	6.48	22.0	6.52	0

Table 2 The incidence of sheath blight in each treatment in Zhongzao 39

处理	6月15日		6月22日		6月29日		防治效果/ %
处理	丛病率/ %	株病率/ %	丛病率/ %	株病率/ %	丛病率/ %	株病率/ %	防治效果/ %
1	1	0.10	5.5	1.56	8.0	1.79	72.50
2	16	1.40	14.0	1.87	7.5	2.34	64.11
4	2	0.43	16.0	1.90	10.0	2.07	68.25
6	2	0.63	12.0	2.09	16.0	1.88	71.17
CK	10	3.19	28.0	6.48	22.0	6.52	0

Table 3 The incidence of sheath blight in each treatment in Yongyou 9

处理	8月13日		8月23日		9月24日		防治效果/ %
处理	丛病率/ %	株病率/ %	丛病率/ %	株病率/ %	丛病率/ %	株病率/ %	防治效果/ %
1	2	0.17	4	0.32	12.0	1.14	78.37
2	8	0.80	2	0.20	7.5	1.20	77.22
3	0	0	0	0	4.0	0.67	87.28
4	12	2.20	10	2.55	10.0	1.63	69.07
5	18	4.57	14	2.08	16.0	2.61	50.47
6	10	1.16	2	0.24	4.0	1.27	75.90
CK	18	4.19	6	0.55	22.0	5.27	0

Table 3 The incidence of sheath blight in each treatment in Yongyou 9

处理	8月13日		8月23日		9月24日		防治效果/ %
处理	丛病率/ %	株病率/ %	丛病率/ %	株病率/ %	丛病率/ %	株病率/ %	防治效果/ %
1	2	0.17	4	0.32	12.0	1.14	78.37
2	8	0.80	2	0.20	7.5	1.20	77.22
3	0	0	0	0	4.0	0.67	87.28
4	12	2.20	10	2.55	10.0	1.63	69.07
5	18	4.57	14	2.08	16.0	2.61	50.47
6	10	1.16	2	0.24	4.0	1.27	75.90
CK	18	4.19	6	0.55	22.0	5.27	0

Table 4 Incidence of sheath blight in each treatment of Ning 84

处理	8月13日		8月23日		9月24日		防治效果/ %
处理	丛病率/ %	株病率/ %	丛病率/ %	株病率/ %	丛病率/ %	株病率/ %	防治效果/ %
1	0	0	2.0	0.30	5.0	0.24	90.16
2	0	0	2.5	0.41	6.5	0.55	77.46
4	0	0	5.0	0.55	12.0	1.33	45.49
6	0	0	2.0	0.45	8.0	1.02	58.20
CK	2	0.23	10.0	0.98	18.0	2.44	0

Table 4 Incidence of sheath blight in each treatment of Ning 84

处理	8月13日		8月23日		9月24日		防治效果/ %
处理	丛病率/ %	株病率/ %	丛病率/ %	株病率/ %	丛病率/ %	株病率/ %	防治效果/ %
1	0	0	2.0	0.30	5.0	0.24	90.16
2	0	0	2.5	0.41	6.5	0.55	77.46
4	0	0	5.0	0.55	12.0	1.33	45.49
6	0	0	2.0	0.45	8.0	1.02	58.20
CK	2	0.23	10.0	0.98	18.0	2.44	0

Table 5 Economic traits of Yongyou 9 under each treatment

处理	千粒重/ g	结实率/ %	穗粒数	穗长/ cm	667 m² 产量/kg
1	25.96 a	87.42 a	313.29 b	26.87 a	658.5
2	26.41 a	90.82 a	345.82 a	27.59 a	675.4
3	25.06 a	88.01 a	331.43 a	26.77 a	677.1
4	25.93 a	89.92 a	300.78 c	26.97 a	620.0
5	23.17 a	83.24 b	338.71 a	27.76 a	633.5
6	25.31 a	67.76 c	353.24 a	27.39 a	612.0
CK	23.59 a	89.01 a	292.53 c	26.15 b	614.0

Table 5 Economic traits of Yongyou 9 under each treatment

处理	千粒重/ g	结实率/ %	穗粒数	穗长/ cm	667 m² 产量/kg
1	25.96 a	87.42 a	313.29 b	26.87 a	658.5
2	26.41 a	90.82 a	345.82 a	27.59 a	675.4
3	25.06 a	88.01 a	331.43 a	26.77 a	677.1
4	25.93 a	89.92 a	300.78 c	26.97 a	620.0
5	23.17 a	83.24 b	338.71 a	27.76 a	633.5
6	25.31 a	67.76 c	353.24 a	27.39 a	612.0
CK	23.59 a	89.01 a	292.53 c	26.15 b	614.0

Table 6 Economic traits of Ning 84 under each treatment

处理	千粒重/ g	结实率/ %	穗粒数	穗长/ cm	667 m² 产量/kg
1	26.10 a	59.00 a	169.96 a	15.57 b	567
2	27.47 a	58.17 a	174.69 a	15.31 b	578
4	25.97 b	54.82 b	160.08 b	15.08 b	546
6	26.46 a	54.58 b	168.62 a	17.92 a	533
CK	26.88 a	55.53 b	168.82 a	14.98 a	514

Table 6 Economic traits of Ning 84 under each treatment

处理	千粒重/ g	结实率/ %	穗粒数	穗长/ cm	667 m² 产量/kg
1	26.10 a	59.00 a	169.96 a	15.57 b	567
2	27.47 a	58.17 a	174.69 a	15.31 b	578
4	25.97 b	54.82 b	160.08 b	15.08 b	546
6	26.46 a	54.58 b	168.62 a	17.92 a	533
CK	26.88 a	55.53 b	168.82 a	14.98 a	514

Table 7 Economic traits of Zhongzao 39 under each treatment

处理	千粒重/g	结实率/%	穗粒数	穗长/cm
1	20.27 c	58.85 b	155.52 b	19.81 a
2	23.44 a	76.90 a	180.10 a	20.05 a
4	21.31 b	70.70 a	161.65 b	19.35 a
6	22.68 a	67.53 a	155.74 b	19.30 a
CK	21.31 b	60.64 a	158.61 b	19.69 a

Table 7 Economic traits of Zhongzao 39 under each treatment

处理	千粒重/g	结实率/%	穗粒数	穗长/cm
1	20.27 c	58.85 b	155.52 b	19.81 a
2	23.44 a	76.90 a	180.10 a	20.05 a
4	21.31 b	70.70 a	161.65 b	19.35 a
6	22.68 a	67.53 a	155.74 b	19.30 a
CK	21.31 b	60.64 a	158.61 b	19.69 a

References 7

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