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Effect of Temperature，Illumination and Soil Water Content on Hatching of Dormant Eggs of Soybean Cyst Nematode(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2009年04期
Page:
690-692
Research Field:
Publishing date:

Info

Title:
Effect of Temperature，Illumination and Soil Water Content on Hatching of Dormant Eggs of Soybean Cyst Nematode
Author(s):
SUN Jing-shuang; ZHENG Ya-nan; DUAN Yu-xi; TIAN Feng; CHEN Li-jie
Plant Protection College，Shenyang Agricultural University；Shenyang 110161，Liaoning，China
Keywords:
Heterodera glycine; Water content; Dormancy; Hatch
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2009.04.0690
Abstract:
The effects of temperature，illumination and soil water content on dormant eggs of Heterodera glycine were studied in lab.Hatching of the eggs were assayed under 5 tested temperatue(18℃，21℃，24℃，27℃ and 30℃)，7 tested illumination conditions(0/24 h，4/20 h，8/16 h，12/12 h，16/8 h，20/4 h and 24/0 h)and 7 kinds of soil water contents(1%，5%，10%，15%，20%，25% and 30%)，respectively.Total number of hatched J2 increased with increasing of temperature among 18-30℃，and reached 1316.33 under condition of 30℃.Amount of hatched J2 of full illumination treatment reached 745.00，followed by treatments of 4L/20D，12L/12D and 20L/4D，and that of full dark treatment was the least.Among all water content treatments，hatched J2 reached the most under 15% water content，however the amount of hatched J2 reduced when tested water content over 15%.It is concluded that eggs hatching can be induced by high temperature and long illumination，while regulating soil water content is necessary to inoculation with dormant cysts to soybean.

References:

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Last Update: 2014-09-22