Development of a biological seed-coating preparation and it's efficiency in prevention of Heterodera glycines

ZHOU Yuan-yuan;WANG Yuan-yuan;ZHU Xiao-feng;CHEN Li-jie;CHEN Jing-sheng;DUAN Yu-xi;Nematology Institute of Nothern China,College of Plant Protection,Shenyang Agricultural University;Heilonjiang Academy of Agricultural Sciences,Daqing Branch Academy;

Biological seed-coating SN101;;Microbial diversity;;Heterodera glycines;;Control effect

Based on ecological balance theory of biodiversity,biological seed coating SN101 was carried out in field. The objective of this research was to eradicate Heterodera,to test the compounding proportion of seed coating and threats to host plant. Sneb482,Sneb545 and Snebl83 were antagonistical to nematode,and were compounded into different proportion. The germination of soybean was examined. Field efficiency trials carried out in 2012 and2013. The rate of emergence in seedling stage were calculated. We counted the cysts outside the soybean roots and in the soil around the roots,and the cyst nematodes inside the roots of different stages from 30 to 35 days after seeding,surveyed the influence on plant growth,tested soybean yield in autumn. The results showed that the biological seed coating SN101 had no effect on emergence of soybean seedings and significant better than no coated and commodity seed coating in fields. Biocontrol seed coating SN101 could not only promote soybean growth and development,but also effectively suppress soybean cyst nematode numbers around soybean roots and increase soybean yield. It showed great financial benefit and a promising future.