<abstract xmlns="http://www.w3.org/1999/xhtml"><p>A survey was performed in four locations of Semel District – as follows: Sartenk, Qesir yazdin, Sharia, and Grshin (Bawerde) – by selecting 4 greenhouses planted with cucumber plants (<italic>Cucumis sativus</italic> L.) on each location, during both growing seasons (spring and autumn) of the year 2015. The results showed that the incidence of root-knot disease increased to its maximum level (37.48%) in the autumn season and then decreased to its minimum level (34.67%) in the spring season. According to the surveyed locations, the highest disease incidence (73.05%) was recorded in Sartenk location and the lowest (13.54%) in Sharia location. Results of the interaction between the locations and seasons revealed that the highest disease incidence (80.5%) appeared in Sartenk location during the autumn growing season followed by 65.60% in the same location during the spring growing season, whereas the lowest percentage was reported in Sharia during the spring season (3.47%). Depending on the perineal patterns for species identification of <italic>Meloidogyne</italic> spp. on cucumber plants, results showed the presence of <italic>Meloidogyne javanica</italic> in all surveyed locations. Generally, in one of the greenhouses of Sartenk location, the population density of <italic>M. javanica</italic> reached its maximum level (1,762 nematodes/200 gm soil) in September 2015, while the minimum level (337.5 nematodes/200 gm soil) was recorded in May the same year.</p></abstract>

A survey was performed in four locations of Semel District – as follows: Sartenk, Qesir yazdin, Sharia, and Grshin (Bawerde) – by selecting 4 greenhouses planted with cucumber plants (Cucumis sativus L.) on each location, during both growing seasons (spring and autumn) of the year 2015. The results showed that the incidence of root-knot disease increased to its maximum level (37.48%) in the autumn season and then decreased to its minimum level (34.67%) in the spring season. According to the surveyed locations, the highest disease incidence (73.05%) was recorded in Sartenk location and the lowest (13.54%) in Sharia location. Results of the interaction between the locations and seasons revealed that the highest disease incidence (80.5%) appeared in Sartenk location during the autumn growing season followed by 65.60% in the same location during the spring growing season, whereas the lowest percentage was reported in Sharia during the spring season (3.47%). Depending on the perineal patterns for species identification of Meloidogyne spp. on cucumber plants, results showed the presence of Meloidogyne javanica in all surveyed locations. Generally, in one of the greenhouses of Sartenk location, the population density of M. javanica reached its maximum level (1,762 nematodes/200 gm soil) in September 2015, while the minimum level (337.5 nematodes/200 gm soil) was recorded in May the same year.

Disease incidence, identification, and monthly fluctuations in the population density of root-knot nematodes <italic>Meloidogyne javanica</italic> on cucumber plants in Semel District, Duhok, Kurdistan Region, Iraq

Acta Universitatis Sapientiae, Agriculture and Environment

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Disease incidence, identification, and monthly fluctuations in the population density of root-knot nematodes  on cucumber plants in Semel District, Duhok, Kurdistan Region, Iraq

A survey was performed in four locations of Semel District – as follows: Sartenk, Qesir yazdin, Sharia, and Grshin (Bawerde) – by selecting 4 greenhouses...

Disease incidence, identification, and monthly fluctuations in the population density of root-knot nematodes Meloidogyne javanica on cucumber plants in Semel District, Duhok, Kurdistan Region, Iraq

Published Online: Feb 23, 2019

Page range: 52 - 65

Received: Jun 15, 2018

Accepted: Sep 21, 2018

DOI: https://doi.org/10.2478/ausae-2018-0005

Keywords
disease incidence, identification, population density, cucumber

© 2018 Sulaiman Naif Ami et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Disease incidence, identification, and monthly fluctuations in the population density of root-knot nematodes Meloidogyne javanica on cucumber plants in Semel District, Duhok, Kurdistan Region, Iraq

Published Online: Feb 23, 2019

Page range: 52 - 65

Received: Jun 15, 2018

Accepted: Sep 21, 2018

DOI: https://doi.org/10.2478/ausae-2018-0005

Keywordsdisease incidence, identification, population density, cucumber

© 2018 Sulaiman Naif Ami et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
disease incidence, identification, population density, cucumber