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Acta Agronomica Sinica ›› 2020, Vol. 46 ›› Issue (02): 269-279.doi: 10.3724/SP.J.1006.2020.93015

• TILLAGE & CULTIVATION·PHYSIOLOGY & BIOCHEMISTRY • Previous Articles     Next Articles

Effect of different film-forming agents on the persistence and safety of thiacloprid suspension concentrate for seed coating for maize

YAO Chen-Tao1,2,4,QIAO Zhi-Hua1,2,SONG Xue-Hui1,2,ZHANG Feng-Wen1,2,SUN Xiao1,2,LI Gang1,LI Xiang-Dong1,ZHANG Ji-Wang3,JIANG Xing-Yin1,2,*()   

  1. 1 College of Plant Protection, Shandong Agricultural University, Tai’an 271018, Shandong, China
    2 College of Plant Protection, Shandong Agricultural University, Key Laboratory of Pesticide Toxicology & Application Technique, Tai’an 271018, Shandong, China
    3 Shandong Agricultural University, State Key Laboratory of Crop Biology, Tai’an 271018, Shandong, China
    4 Suzhou FMC Plant Protection Co., Ltd., Shanghai 201203, China
  • Received:2019-03-08 Accepted:2019-09-26 Online:2020-02-12 Published:2019-10-12
  • Contact: Xing-Yin JIANG E-mail:xyjiang@sdau.edu.cn
  • Supported by:
    This study was supported by the National Key Research and Development Project(2018YFD0200604);the Provincial Major Technological Innovation Program of Agricultural Application in Shandong, the Shandong “Double First-class” Award(SYL2017XTTD11);the National Modern Agricultural Technology & Industry System(SDAIT-02-10)

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Abstract:

To definite the persistence of thiacloprid seed coating with different film-forming agents in soil and plants and the efficacy in controling piercing-sucking insects, we tested the effects of the thiacloprid FS, with three different film-forming agents at a concentration of 400 g a.i. 100 kg -1, on the emergence rate, growth, physiological and biochemical characteristics of maize at laboratory and in the field respectively, and evaluated controlling effect on piercing-sucking insects by high performance liquid chromatography-mass spectrometry (HPLC-MS/MS). The ZY904-3 and ZY904-5 film-forming agent treatments had no influence on emergence rate of maize. The seedling growth and activities in physiology and biochemistry were promoted to various degrees by thiacloprid seed dressing with three different film-forming agents. Compared with no film-forming agent treatments, the persistent periods of ZY904-1, ZY904-3, and ZY904-5 treatments were extended by 20-40 days, 20-30 days, and 10-20 days in leaves of maize and in the soil respectively. The maize piercing-sucking insects were controlled significantly by three film-forming agent treatments. ZY904-1 and ZY904-3 treatments had good control effects on the amount of piercing-sucking insects in the growth stage of maize which coat still over 50% at 80 d (laboratory test) and 60 d (field test) after sowing, respectively. However, ZY904-1 treatment delayed the emergence of seeds. Taking all factors as a whole, ZY904-3 film-forming agent has the best seed dressing effect.

Key words: thiacloprid, maize, film-forming agent, persistent period, safety, liquid chromatography-mass

Table 1

Gradient elution procedures"

时间
Time
(min)		 流速
Flow rate
(mL min-1)		 流动相 Mobile phase (%)
0.1%甲酸水溶液
0.1% formic acid
solution		 乙腈
Acetonitrile
0 0.50 90 10
1 0.50 90 10
2 0.50 10 90
3 0.50 10 90
4 0.50 90 10
5 0.50 90 10

Table 2

Effects of thiacloprid suspension concentrate with different film-forming agents for seed coating on the emergence rate of maize (%)"

成膜剂
Film-forming agent		 有效成分
Active ingredients
(g a.i. 100 kg-1)		 室内试验
Laboratory
test		 大田试验Field test
2 d 4 d 6 d 8 d 10 d
ZY904-1 400 80.27±1.35 b 56.26±1.65 b 76.81±2.67 c 78.56±2.30 c 84.31±1.74 b 84.63±1.32 b
ZY904-3 400 96.58±2.26 a 63.17±2.64 a 85.60±1.62 a 92.61±0.98 a 93.48±3.19 a 93.48±1.19 a
ZY904-5 400 95.42±1.74 a 63.40±1.37 a 85.35±2.09 a 91.49±1.35 a 92.24±2.34 a 92.24±2.34 a
未添加成膜剂对照NCK 400 96.33±2.88 a 64.24±0.96 a 86.77±1.79 a 91.70±3.36 a 93.38±3.18 a 93.38±3.18 a
清水对照CK — 97.31±2.57 a 58.63±4.74 b 82.91±1.42 b 86.56±2.34 b 90.77±1.54 ab 90.77±4.54 ab

Table 3

Effects of thiacloprid suspension concentrate with different film-forming agents for seed coating on growth indexes of maize seedlings (laboratory test)"

成膜剂
Film-forming agent		 有效成分
Active ingredients
(g a.i. 100 kg-1)		 株高
Plant height
(cm)		 根长
Root length
(cm)		 茎粗
Stem thick
(cm)		 须根数
Fibrous root number		 鲜重
Fresh weight
(g)
ZY904-1 400 30.60±2.31 b 18.62±2.46 a 6.18±0.53 a 5.2±0.32 a 4.91±0.28 a
ZY904-3 400 32.35±1.34 a 19.85±1.28 a 6.42±0.47 a 5.7±0.62 a 5.07±0.46 a
ZY904-5 400 32.26±1.86 a 18.23±3.25 a 6.23±0.38 a 5.3±0.35 a 4.73±0.19 ab
未添加成膜剂对照NCK 400 33.21±1.81 a 18.64±2.45 a 6.55±0.41 a 5.2±0.28 a 4.63±0.24 ab
清水对照CK — 33.47±1.69 a 18.98±3.12 a 6.83±0.48 a 5.1±0.19 a 4.25±0.64 b

Table 4

Effects of thiacloprid suspension concentrate with different film-forming agents for seed coating on growth indexes of maize seedlings (field test)"

成膜剂
Film-forming agent		 有效成分
Active ingredients
(g a.i. 100 kg-1)		 株高
Plant height
(cm)		 根长
Root length
(cm)		 茎粗
Stem thick
(cm)		 须根数
Fibrous root number		 鲜重
Fresh weight
(g)
ZY904-1 400 29.64±1.32 a 11.65±0.56 a 7.80±0.35 a 6.1±0.02 a 4.76±0.33 a
ZY904-3 400 27.32±0.82 a 11.85±0.36 a 8.61±0.56 a 5.8±0.06 a 4.83±0.54 a
ZY904-5 400 29.47±0.66 a 11.42±1.10 a 9.00±0.44 a 6.0±0.00 a 5.04±0.28 a
未添加成膜剂对照NCK 400 30.36±1.98 a 12.56±0.45 a 8.55±0.32 a 6.0±0.03 a 5.06±0.42 a
清水对照CK — 23.24±1.33 b 8.71±1.32 b 5.83±0.24 a 5.2±0.05 a 3.77±0.74 b

Table 5

Effects of thiacloprid suspension concentrate with different film-forming agents for seed coating on physiological indexes of maize"

成膜剂
Film-forming agent		 有效成分
Active
ingredient
(g a.i. 100 kg-1)		 叶绿素
Chlorophyll
(mg g-1 FW)		 根系活力
Root activity
(g h-1 FW)		 游离脯氨酸
Free proline accumulation
(μg g-1 DW)
室内试验
Laboratory		 田间试验
Field		 室内试验
Laboratory		 田间试验
Field		 室内试验
Laboratory		 田间试验
Field
ZY904-1 400 2.21±0.11 a 2.34±0.03 a 0.35±0.04 a 0.54±0.01 a 57.24±0.94 b 87.37±1.21 a
ZY904-3 400 2.16±0.27 a 2.33±0.02 a 0.38±0.08 a 0.55±0.03 a 62.39±1.32 a 87.11±1.29 a
ZY904-5 400 2.19±0.09 a 2.34±0.03 a 0.37±0.08 a 0.52±0.02 ab 59.22±0.72 b 86.82±0.65 a
未添加成膜剂对照NCK 400 2.04±0.07 ab 2.23±0.08 a 0.32±0.02 a 0.50±0.06 a 57.49±1.32 b 80.46±0.95 a
清水对照CK — 1.94±0.11 b 1.85±0.07 b 0.24±0.02 b 0.46±0.03 b 42.16±0.64 c 54.90±1.47 b

Table 6

Effects of thiacloprid suspension concentrate with different film-forming agents for seed coating on the antioxidant enzymes activity of maize"

成膜剂
Film-forming agent		 有效成分
Active ingredient
(g a.i. 100 kg-1)		 超氧化物歧化酶活性
SOD activity
(U g-1 FW min-1)		 过氧化氢酶活性
CAT activity
(U g-1 FW min-1)		 过氧化物酶活性
POD activity
(U g-1 FW min-1)
室内试验
Laboratory		 田间试验
Field		 室内试验
Laboratory		 田间试验
Field		 室内试验
Laboratory		 田间试验
Field
ZY904-1 400 71.36±2.32 a 50.85±0.96 a 134.23±4.28 a 81.74±2.47 a 64.82±4.53 a 55.30±2.12 a
ZY904-3 400 76.53±3.46 a 51.62±1.30 a 147.65±6.42 a 79.84±0.30 a 60.17±5.26 a 55.06±3.45 a
ZY904-5 400 80.32±2.49 a 50.06±0.84 a 130.27±8.24 a 80.70±2.44 a 64.22±2.79 a 54.23±1.41 a
未添加成膜剂对照NCK 400 74.21±4.12 a 46.32±1.31 a 140.59±7.33 a 74.33±2.44 a 62.47±4.62 a 45.29±2.63 ab
清水对照CK — 58.34±1.91 b 35.64±1.09 b 80.69±9.28 b 64.64±1.62 b 47.82±4.33b 36.53±2.34 c

Table 7

Fortified recovery of thiacloprid in maize leaves and soil"

添加水平
Spiked level
(mg kg-1)		 标准曲线
Calibration curve		 土壤Soil 玉米植株Maize plant
平均回收率
Average recovery (%)		 相对标准偏差
RSD (%)		 平均回收率
Average recovery (%)		 相对标准偏差
RSD (%)
0.01 y = 3775.92x + 6978240
R2 = 0.9931		 89.42 6.4 86.07 7.9
0.1 94.64 3.4 95.36 2.9
1.0 96.78 3.2 95.36 5.6

Fig. 1

Mass spectrogram of thiacloprid"

Fig. 2

Dispelling dynamics of thiacloprid suspension concentrate with different film-forming agents for seed coating in maize leaves"

Fig. 3

Dispelling dynamics ofthiacloprid suspension concentrate with different film-forming agents for seed coating in soil"

Fig. 4

Effects of thiacloprid suspension concentrate with different film-forming agents for seed coating on the amount of piercing- sucking insects"

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