Dataset on: Incidence and geographical distribution of cereal cyst nematode (CCN, Heterodera spp.) in winter wheat fields in Algeria

Cereal cyst nematodes (CCN, Heterodera spp.) are the most damaging plant-parasitic nematode species on wheat, causing severe economic loss in global wheat production. In summer 2015, we analyzed samples collected from 22 wheat fields in Algeria using the Fenwick can technique. The study revealed that 54.55 % of wheat fields were infested with cereal cyst nematodes. The species was observed in several locations in the northern part of Algeria but not in the southern desert area. Population densities of CCNs in soil varied between the regions at an infestation rate of between 0.6 ± 0.54 and 86.6 ± 19.96 cysts per 500 g of dried soil. Furthermore, we found an average of 56.33±15.18 and 364.70 ± 81.93 second-stage juveniles and eggs/cyst. The infestation was most severe in cereal fields in Draa Semar and Djendel with 86.6 ± 19.96 cyst/500g of soil and 57.4±17.55 cysts/500g of soil, respectively. Infestation was lowest in fields in Ras Elouad, Sidi Mbarek and Sedraia with 0.6 ± 0.54 cysts/500g of soil; 1.6 ± 1.67 cysts/500g of soil and 2.4 ± 1.67 cysts/500g of soil, respectively. Heterodera spp. was distributed throughout the cereal growing province in Algeria and could cause economic loss in these regions.

禾谷孢囊线虫（Cereal cyst nematodes, CCN, Heterodera spp.）是危害小麦最为严重的植物寄生线虫类群，可对全球小麦生产造成严重经济损失。2015年夏季，我们采用芬威克罐法（Fenwick can technique）对阿尔及利亚22个小麦田采集的土样进行了分析。本研究结果显示，54.55%的受访小麦田遭受禾谷孢囊线虫侵染。该线虫在阿尔及利亚北部多个区域均有检出，但未在南部沙漠区域发现。不同区域土壤中的禾谷孢囊线虫种群密度存在显著差异，每500g干土中的孢囊数量介于0.6±0.54至86.6±19.96个之间。此外，每个孢囊内的二龄幼虫和卵的平均数量分别为56.33±15.18和364.70±81.93。其中，德拉阿塞马尔（Draa Semar）和杰恩德尔（Djendel）的小麦田侵染程度最为严重，每500g干土中的孢囊数量分别为86.6±19.96和57.4±17.55个。侵染程度最低的区域为拉斯埃卢阿德（Ras Elouad）、西迪姆巴雷克（Sidi Mbarek）和塞德拉亚（Sedraia）的小麦田，每500g干土中的孢囊数量分别为0.6±0.54、1.6±1.67和2.4±1.67个。该异皮线虫属物种广泛分布于阿尔及利亚的小麦种植产区，可对上述区域造成经济损失。