Effect of Bacillus amyloliquefacien Mixed with Other Agents on Wheat Crown Rot Disease and Yield

doi:10.11924/j.issn.1000-6850.casb2023-0874

Abstract

Abstract:

In order to explore the effective control methods for wheat crown rot, Bacillus amyloliquefacien（≥100 million cfu/g) AS, 5% mepiquat chloride AS and thifluzamide (240g/L) SC were selected to control the disease in this study. The results showed that the combination of the three agents increased the four evaluation indexes and reduced diseased plants in seeding stage. The combinations also significantly reduced the incidence speed in jointing stage, the treatment 6 was the best and the diseased stem rate was 20.00%. The results of the survey during the seed filling stage showed that the three combinations could control the spread of wheat crown rot and the diseased stem rate was 23.33%-24.44%, the control efficiency was more than 75%. The combinations of the three agents increased the yield rate by more than 21.23%. The result showed that the combinations of the three agents could control the wheat crown rot and increase the wheat yield, which could be popularized in the future.

Key words: wheat crown rot, Bacillus amyloliquefacien, mepiquat chloride, seed-coating, control effect

WANG Jun, HU Yinghua, WANG Xianghui, ZHANG Li. Effect of Bacillus amyloliquefacien Mixed with Other Agents on Wheat Crown Rot Disease and Yield[J]. Chinese Agricultural Science Bulletin, 2024, 40(18): 135-139.

Figures/Tables 5

References 23

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处理	包衣药剂	剂量/100kg种子
1	解淀粉芽孢杆菌（≥100亿CFU/mL）AS	1000 mL
2	噻呋酰胺(240 g/L)SC	150 mL
3	解淀粉芽孢杆菌（≥100亿CFU/mL）AS+噻呋酰胺(240 g/L)SC	1000 mL+75 mL
4	解淀粉芽孢杆菌（≥100亿CFU/mL）AS+噻呋酰胺(240 g/L)SC	1000 mL+125 mL
5	甲哌鎓(5%)AS+解淀粉芽孢杆菌（≥100亿CFU/mL）AS+噻呋酰胺(240 g/L)SC	400 mg+1000 mL+75 mL
6	甲哌鎓(5%)AS+解淀粉芽孢杆菌（≥100亿CFU/mL）AS+噻呋酰胺(240 g/L)SC	400 mg+1000 mL+125 mL
7	对照

处理	包衣药剂	剂量/100kg种子
1	解淀粉芽孢杆菌（≥100亿CFU/mL）AS	1000 mL
2	噻呋酰胺(240 g/L)SC	150 mL
3	解淀粉芽孢杆菌（≥100亿CFU/mL）AS+噻呋酰胺(240 g/L)SC	1000 mL+75 mL
4	解淀粉芽孢杆菌（≥100亿CFU/mL）AS+噻呋酰胺(240 g/L)SC	1000 mL+125 mL
5	甲哌鎓(5%)AS+解淀粉芽孢杆菌（≥100亿CFU/mL）AS+噻呋酰胺(240 g/L)SC	400 mg+1000 mL+75 mL
6	甲哌鎓(5%)AS+解淀粉芽孢杆菌（≥100亿CFU/mL）AS+噻呋酰胺(240 g/L)SC	400 mg+1000 mL+125 mL
7	对照

处理	返青期施药	剂量/hm²
1	解淀粉芽孢杆菌（≥100亿CFU/mL）AS	2250 mL
2	噻呋酰胺(240 g/L)SC	300 mL
3	解淀粉芽孢杆菌（≥100亿CFU/mL）AS+噻呋酰胺(240 g/L)SC	2250 mL+150 mL
4	解淀粉芽孢杆菌（≥100亿CFU/mL）AS+噻呋酰胺(240 g/L)SC	2250 mL+225 mL
5	甲哌鎓(5%)AS+解淀粉芽孢杆菌（≥100亿CFU/mL）AS+噻呋酰胺(240 g/L)SC	100 g+1500 mL+150 mL
6	甲哌鎓(5%)AS+解淀粉芽孢杆菌（≥100亿CFU/mL）AS+噻呋酰胺(240 g/L)SC	100 g+2250 mL+150 mL
7	对照

处理	返青期施药	剂量/hm²
1	解淀粉芽孢杆菌（≥100亿CFU/mL）AS	2250 mL
2	噻呋酰胺(240 g/L)SC	300 mL
3	解淀粉芽孢杆菌（≥100亿CFU/mL）AS+噻呋酰胺(240 g/L)SC	2250 mL+150 mL
4	解淀粉芽孢杆菌（≥100亿CFU/mL）AS+噻呋酰胺(240 g/L)SC	2250 mL+225 mL
5	甲哌鎓(5%)AS+解淀粉芽孢杆菌（≥100亿CFU/mL）AS+噻呋酰胺(240 g/L)SC	100 g+1500 mL+150 mL
6	甲哌鎓(5%)AS+解淀粉芽孢杆菌（≥100亿CFU/mL）AS+噻呋酰胺(240 g/L)SC	100 g+2250 mL+150 mL
7	对照

处理	株高/cm	根长/cm	单株鲜重/g	单株干重/g
1	(13.52±0.05)a	(7.11±0.02)c	(0.29±0.003)bc	(0.06±0.001)cd
2	(12.74±0.26) b	(7.11±0.00)c	(0.29±0.006)bc	(0.06±0.003)bcd
3	(13.54±0.07) a	(7.38±0.02)b	(0.31±0.004)a	(0.07±0.001)abc
4	(13.76±0.31) a	(7.33±0.04)b	(0.31±0.006)ab	(0.07±0.000)ab
5	(14.10±0.11) a	(7.57±0.09)a	(0.32±0.005)a	(0.07±0.000)abc
6	(13.98±0.30) a	(7.58±0.10)a	(0.31±0.000)a	(0.07±0.000)a
7	(12.39±0.11) b	(6.85±0.01)d	(0.28±0.006)c	(0.05±0.000)d