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| 黑龙江省大豆胞囊线虫种群分布和卵密度研究 | |
| 引用本文： | 孙玉秋,许艳丽,李春杰,潘凤娟,张原.黑龙江省大豆胞囊线虫种群分布和卵密度研究[J].大豆科学,2011,30(2):250-253,258. |
| 作者姓名： | 孙玉秋 许艳丽 李春杰 潘凤娟 张原 |
| 作者单位： | 1. 中国科学院,东北地理与农业生态研究所,黑土区农业生态院重点实验室,海伦农田生态系统国家野外观测研究站,黑龙江,哈尔滨,150081;中国科学院研究生院,北京,100049 2. 中国科学院,东北地理与农业生态研究所,黑土区农业生态院重点实验室,海伦农田生态系统国家野外观测研究站,黑龙江,哈尔滨,150081 3. 黑龙江省植检植保站,黑龙江,哈尔滨,150090 |
| 基金项目： | 国家自然科学基金，黑龙江科技攻关资助项目，黑龙江省自然科学基金 |
| 摘 要： | 对采自黑龙江省35个市县112份大豆田土样,采用蔗糖梯度离心法,研究了大豆胞囊线虫种群分布和种群密度.结果表明:从黑龙江省采集的所有大豆根围土样都检测到了大豆胞囊线虫,各地胞囊线虫的种群密度不同,每100 g干土中的虫卵量差别大,100 g干土中,嫩江县的大豆胞囊线虫卵量多达30 583个,最少的是抚远县,100 g干... |
| 关 键 词： | 大豆胞囊线虫 种群分布 卵密度 |
Distribution of Soybean Cyst Nematode and Population Density in Heilongjiang Province |
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| SUN Yu-qiu,XU Yan-li,LI Chun-jie,PAN Feng-juan,ZHANG Yuan.Distribution of Soybean Cyst Nematode and Population Density in Heilongjiang Province[J].Soybean Science,2011,30(2):250-253,258. | |
| Authors: | SUN Yu-qiu XU Yan-li LI Chun-jie PAN Feng-juan ZHANG Yuan |
| Institution: | 1.Key Laboratory of Mollisols Agroecology,National Observation Station of Hailun Agroecology System,Northeast Institute of Geography and Agroecology,Chinese Academy of Sciences,Harbin 150081,Heilongjiang;2.Graduate University of Chinese Academy of Sciences,Beijing 100049;3.Plant Quarantine and Plant Protection Station of Heilongjiang Province,Harbin 150090,Heilongjiang,China) |
| Abstract: | Dring 2007 and 2008,112 soybean cyst nematode(SCN) soil samples were collected from 35 cities and counties in Heilongjiang province of China.Sucrose gradient centrifugation was used to study the distribution of soybean cyst nematode and population density.SCN was detected in all the tested soil samples,suggested that SCN widely distributed in Heilongjiang province.The density of SCN varied with place,in Nenjiang county,the amount of soybean cyst lines up to 30 583 eggs,while only 56 eggs·100 g-1 dry soil was detected in Fuyuan county.The population density of SCN eggs were divided into three sections: 0-2 000·100 g-1 dry soil accounted for 67.4%,2 001-4 000·100 g-1 dry soil accounted for 13.9%,more than 4 000 eggs·100 g-1 dry soil accounted for 18.7%.The egg population density in western region was higher than that in southeast region.The distribution map of SCN eggs in Heilongjiang province were draw out according to the results. |
| Keywords: | Soybean cyst nematode(SCN) Population Egg density |
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