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http://dx.doi.org/10.11626/KJEB.2022.40.4.550

Effect of temperature on reproduction of Pratylenchus penetrans and P. vulnus  

Heonil Kang (Forest Entomology and Pathology Division, National Institute of Forest Science)
Se-Keun Park (Division of Crop Protection, National Institute of Agricultural Science, RDA)
Hyoung-Rai Ko (Division of Crop Protection, National Institute of Agricultural Science, RDA)
Eunhwa Kim (Division of Crop Protection, National Institute of Agricultural Science, RDA)
Eunhyung Park (Division of Crop Protection, National Institute of Agricultural Science, RDA)
Byeong-Yong Park (Division of Crop Protection, National Institute of Agricultural Science, RDA)
Publication Information
Korean Journal of Environmental Biology / v.40, no.4, 2022 , pp. 550-555 More about this Journal
Abstract
Perilla plant is a special crop that is used as oilseed and food in Korea. Root lesion nematodes have caused great damage to perilla plants, so for effective management of root lesion nematodes, it is necessary to understand their ecology in perilla. In this study, we investigated the effect of temperature in the development of Pratylenchus penetrans (Pp) and Pratylenchus vulnus (Pv) when the nematodes infected the perilla plant. To estimate the effect of temperature, we assessed the reproduction factor (RF); final population/initial population(Pf/Pi) of these two nematode species. We used perilla plants as inoculated hosts and investigated the density of nematodes at 10 weeks after inoculation. As a result, the RF of Pp was highest at 20℃ (0.41 (1st test), 2.2 (2nd test)) followed by 25, 30, and 15℃. The RF of Pv was highest at 30℃(9.84 (1st test), 31.39 (2nd test)), followed by 25, 20, and 15℃. Comparing the RF by temperature between Pp and Pv, Pv was higher than Pp at all temperatures used in the test. This study showed the optimal development temperature of Pp was 20-25℃ and Pv was 30℃, respectively.
Keywords
Pratylenchus penetrans; Pratylenchus vulnus; nematodes; optimal development temperature;
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Times Cited By KSCI : 1  (Citation Analysis)
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