Table 2 Occurrence and distribution of Heterodera filipjevi in the main cereal crop production areas of China
Order | Province | Samples | Number of samples containing H. filipjevi | Detection rate (%) | Populations density (Cysts per 100 cm3 soil) | |
|---|---|---|---|---|---|---|
Maximum | Average | |||||
1 | Henan | 135 | 5 | 3.70 | 8 | 5 |
2 | Anhui | 84 | 3 | 3.57 | 4 | 3 |
3 | Jiangsu | 47 | 3 | 6.38 | 4 | 2.5 |
4 | Shandong | 83 | 2 | 2.40 | 3 | 2 |
5 | Shanxi | 15 | 2 | 13.33 | 3 | 2 |
6 | Qinghai | 122 | 6 | 4.91 | 1 | 1 |