-
Effects of 31.9% Imidacloprid·Tebuconazole Suspension Seed Coating Agent on Growth of the Main Wheat Varieties in Henan Province
- SU Wangcang, HAO Hongdan, XU Hongle, SUN Lanlan, ZHOU Pu, WU Renhai, XUE Fei
-
2019, 48(12):
89-97.
DOI: 10.15933/j.cnki.1004-3268.2019.12.013
-
Asbtract
(
)
PDF (1129KB)
(
)
-
References |
Related Articles |
Metrics
To study the safety of 31.9% imidacloprid·tebuconazole suspension seed coating agent on the main wheat varieties in Henan Province, demonstration test of wheat seed dressing with 31.9% imidacloprid·tebuconazole suspension seed coating agent was conducted,and the effects on the growth and development of wheat were investigated.The result showed that 31.9% imidacloprid·tebuconazole suspension seed coating agent had no harm to the tested wheat at the recommended dosage(31.9%imidacloprid·tebuconazole suspension seed coating agent:Wheat seed was 4 mL∶1 kg).Wheat seed dressing with 31.9% I imidacloprid·tebuconazole suspension seed coating agent could improve the emergence rates of Qiule 2122,Zhoumai 27,Xinong 979,Yumai 158,Aikang 58,Jimai No.4,Kaimai 21,Fanmai No.8 and Fengdecunmai No.1 significantly,the emergence rates were 90%,98%,89%,96%,96%,70%,83%,98% and 81%,respectively,while the emergence rates without 31.9% imidacloprid·tebuconazole suspension seed coating agent were 75%,86%,82%,72%,89%,62%,76%,78% and 69%,respectively.The investigation of the basic seedling number showed that seed dressing with 31.9% imidacloprid·tebuconazole suspension seed coating agent had no adverse effect on the emergence of the tested wheat varieties.Wheat seed dressing with 31.9% imidacloprid · tebuconazole suspension seed coating agent could improve the tillering number and the fresh weight of the overground part of Yumai 158,Bainong 207 and Tianmin 198,indicating that it could promote the growth of wheat plants.The tillering numbers were 5,4 and 4,respectively,while the tillering numbers without 31.9% imidacloprid·tebuconazole suspension seed coating agent were 4, 3 and 3, respectively.The fresh weights of the overground part were 8.31,8.25 and 7.10 g,respectively,while the fresh weight of the overground part without 31.9% imidacloprid·tebuconazole suspension seed coating agent were 6.62,6.11 and 5.72 g,respectively.The root number,root length and the fresh weight of the underground part of Xinong 979 and Zhoumai 22 were improved after seed dressing with 31.9% imidacloprid·tebuconazole suspension seed coating agent,indicating that it could promote the growth of wheat root.The root numbers were 11 and 10,respectively,while the root numbers without 31.9% imidacloprid·tebuconazole suspension seed coating agent were 9 and 8,respectively.The root lengths were 11.8 and 11.4 cm,respectively,while the root lengths without 31.9% imidacloprid·tebuconazole suspension seed coating agent were 10.2 and 10.1 cm,respectively.The fresh weights of the underground part were 0.91 and 0.65 g,respectively,while the fresh weights of the underground part without 31.9% imidacloprid·tebuconazole suspension seed coating agent were 0.81 and 0.45 g,respectively.In summary, it can be seen that 31.9% imidacloprid·tebuconazole suspension seed coating agent is safe for the main wheat varieties in Henan Province dressing with the recommended dosage(31.9% imidacloprid·tebuconazole suspension seed coating agent ∶Wheat seed was 4 mL∶1 kg),and has a certain promotion effect on the growth of wheat.