Crops ›› 2019, Vol. 35 ›› Issue (5): 200-204.doi: 10.16035/j.issn.1001-7283.2019.05.033

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Control Effects of Different Types of Seed-Coating on the Root Rot Disease of Red Kidney Beans

Ren Meifeng1,Dong Jinming1,Li Daqi1,Zhang Meng2,Yang Jing1,Lu Junjiao1   

  1. 1 Institute of Plant Protection, Shanxi Academy of Agriculture Sciences, Taiyuan 030031, Shanxi, China
    2 Plant Protection and Quarantine Station of Shanxi, Taiyuan 030000, Shanxi, China
  • Received:2019-04-08 Revised:2019-06-20 Online:2019-10-15 Published:2019-11-07
  • Contact: Junjiao Lu

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Abstract:

In order to screen a safe for red kidney beans and efficient to control root rot disease seed-coating, the safeties of seed-coating on red kidney beans were determined by pot tests first, and then their control efficiency were evaluated by field tests. The results showed that seed-coating were all safe for seedling emergence, but the effects on growth were different. 60g/L tebuconazole+600g/L imidacloprid FSC could retard the growth significantly on plant height, root length, seedling fresh weight, seedling dry weight; 35% carbendazim·thiram·carbofuran FSC could increase seedling dry weight, but no significant effects on plant height, root length, seedling fresh weight. In the field experiment, the control effects of 11% metalaxyl-M·fludioxonil·azoxystrobin+27% difenoconazole·fludioxonil· thiamethoxam FSC, 18% thiabendazole·fludioxonil·metalaxyl-M FSC, 12% thiophanate-methyl·metalaxyl·azoxy-strobin+600g/L imidacloprid FSC, 62.5g/L metalaxyl-M·fludioxonil+600g/L imidacloprid FSC was significantly higher than 35% carbendazim·thiram·carbofuran FSC at 30 days after sowing, their control effects was 80.04%, 73.77%, 63.46% and 57.25%, respectively; the control effects of other three treatments were lower but had no significant difference from 35% carbendazim·thiram·carbofuran FSC treatment. Compared with the blank control treatment, 35% carbendazim·thiram·carbofuran FSC treatment had the highest yield increase rate of 30.18%, and 12% thiophanate-methyl·metalaxyl·azoxystrobin+600g/L imidacloprid FSC treatment had the lowest yield increase rate of 12.57%. The yield increase rate of the other 6 treatments was lower than 35% carbendazim·thiram·carbofuran FSC treatment, higher than12% thiophanate-methyl·metalaxyl·azoxystrobi·azoxystrobin+600g/L imidacloprid FSC treatment, but the difference between these treatments was not significant. In combination with the indoor safety evaluation, control and yield increase effect, 11% metalaxyl-M·fludioxonil·azoxystrobin+27% difenocon-azole·fludioxonil·thiamethoxam FSC, 18% thiabendazole·fludioxonil·metalaxyl-M FSC have good application prospects and are suitable in production comprehensive application with other prevention control measures.

Key words: Red kidney beans, Root rot disease, Control effects, Seed-coating

Table 1

Tested seed coating and experiments design"

处理
Treatment		 种衣剂Seed coating 剂量
Dosage
T1 62.5g/L精甲·咯菌腈+600g/L吡虫啉FSC 4mL/kg+3mL/kg
T2 11%精甲·咯·嘧菌+27%苯醚·咯·噻虫FSC 6mL/kg+4mL/kg
T3 18%噻灵·咯·精甲FSC 8mL/kg
T4 400g/L萎锈·福美双+600g/L吡虫啉FSC 2mL/kg+3mL/kg
T5 60g/L戊唑醇+600g/L吡虫啉FSC 2mL/kg+3mL/kg
T6 12%甲·嘧·甲霜灵+600g/L吡虫啉FSC 15mL/kg+3mL/kg
T7 22.4%氟唑菌苯胺FSC 12ml/kg
CK1 35%多·福·克FSC 14mL/kg
CK2 空白对照 -

Table 2

Effects of different seed-coating on the seedling emergence and growth of red kidney beans (20d after sowing)"

处理
Treatment		 出苗率(%)
Emergence rate		 株高(cm)
Plant height		 根长(cm)
Root length		 苗鲜重(g)
Fresh weight of seedling		 苗干重(g)
Dry weight of seedling
T1 93.75±3.61a 21.68±0.51abc 19.83±1.06ab 3.45±0.19a 0.40±0.01cd
T2 93.75±3.61a 21.93±0.30abc 20.65±0.90a 3.88±0.18a 0.44±0.01c
T3 91.67±2.08a 21.44±0.82bc 16.53±0.55c 3.14±0.18ab 0.33±0.01e
T4 93.75±3.61a 20.16±0.62c 18.06±1.25abc 3.68±0.12a 0.39±0.01cde
T5 87.50±3.61a 10.02±0.32d 9.57±0.90d 2.38±0.09b 0.21±0.01f
T6 89.58±2.08a 22.37±0.72ab 17.39±0.72bc 3.33±0.20a 0.41±0.02cd
T7 87.50±3.61a 23.45±0.62a 17.17±0.73bc 3.35±0.21a 0.36±0.01de
CK1 95.83±2.08a 21.23±0.61bc 19.63±0.99ab 3.69±0.35a 0.59±0.04a
CK2 93.75±3.61a 22.34±0.42ab 18.93±0.92abc 3.71±0.61a 0.50±0.03b

Table 3

Control efficiency of different seed-coating on root rot disease of red kidney beans (15d after sowing)"

处理
Treatment		 病情指数
Disease incidence		 防治效果(%)
Control efficiency
T1 5.05±0.37c 54.88±3.28b
T2 3.40±0.33de 69.67±2.96a
T3 3.27±0.22de 70.75±2.02a
T4 5.38±0.20c 51.87±1.86b
T5 4.48±0.29cd 59.98±2.58b
T6 4.67±0.33c 58.33±2.98b
T7 10.03±0.03a 10.71±0.23d
CK1 6.87±1.87b 38.69±6.67c
CK2 11.20±0.72a -

Table 4

Effects of different seed-coating on root rot disease and yield of red kidney beans (30d after sowing)"

处理Treatment 病情指数Disease incidence 防治效果Control efficiency (%) 产量Yield (kg/hm2) 增产率Percentage of increased yield (%)
T1 12.44±0.89d 57.25±3.05d 2 730.51±13.72ab 15.65±0.58ab
T2 5.80±0.10f 80.04±0.32a 2 764.12±75.79ab 17.07±3.21ab
T3 7.63±0.77ef 73.77±2.65ab 2 721.14±110.29ab 15.25±4.67ab
T4 18.59±0.70bc 36.12±2.42ef 2 690.47±98.24bc 13.95±4.16ab
T5 20.83±0.83b 28.43±2.86f 2 800.05±208.83ab 18.59±8.84ab
T6 10.63±0.42de 63.46±1.44cd 2 657.90±127.05bc 12.57±5.38b
T7 15.95±2.05c 45.17±7.04e 2 752.48±116.31ab 16.58±4.93ab
CK1 18.27±0.25bc 37.23±0.85ef 3 073.65±64.16a 30.18±2.72a
CK2 29.11±2.19a - 2 361.08±28.30c -
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