Nourani, Seyedeh Lavin, Mohammadi- Goltapeh, Ebrahim, Safaie, Naser, Jalali Javaran, Mokhtar, Pourjam, Ebrahim, Shams- Bakhsh, Masoud, Jahanshahi Afshar, Farahnaz (2015). The effects of Arthrobotrys oligospora and Arthrobotrys conoides culture filtrates on second stage juvenile mortality and egg hatching of Meloidogyne incognita and Meloidogyne javanica. , 4(5), 667-674. doi: 10.48311/jcp.2015.1248
Seyedeh Lavin Nourani; Ebrahim Mohammadi- Goltapeh; Naser Safaie; Mokhtar Jalali Javaran; Ebrahim Pourjam; Masoud Shams- Bakhsh; Farahnaz Jahanshahi Afshar. "The effects of Arthrobotrys oligospora and Arthrobotrys conoides culture filtrates on second stage juvenile mortality and egg hatching of Meloidogyne incognita and Meloidogyne javanica". , 4, 5, 2015, 667-674. doi: 10.48311/jcp.2015.1248
Nourani, Seyedeh Lavin, Mohammadi- Goltapeh, Ebrahim, Safaie, Naser, Jalali Javaran, Mokhtar, Pourjam, Ebrahim, Shams- Bakhsh, Masoud, Jahanshahi Afshar, Farahnaz (2015). 'The effects of Arthrobotrys oligospora and Arthrobotrys conoides culture filtrates on second stage juvenile mortality and egg hatching of Meloidogyne incognita and Meloidogyne javanica', , 4(5), pp. 667-674. doi: 10.48311/jcp.2015.1248
Nourani, Seyedeh Lavin, Mohammadi- Goltapeh, Ebrahim, Safaie, Naser, Jalali Javaran, Mokhtar, Pourjam, Ebrahim, Shams- Bakhsh, Masoud, Jahanshahi Afshar, Farahnaz The effects of Arthrobotrys oligospora and Arthrobotrys conoides culture filtrates on second stage juvenile mortality and egg hatching of Meloidogyne incognita and Meloidogyne javanica. , 2015; 4(5): 667-674. doi: 10.48311/jcp.2015.1248

The effects of Arthrobotrys oligospora and Arthrobotrys conoides culture filtrates on second stage juvenile mortality and egg hatching of Meloidogyne incognita and Meloidogyne javanica

Journal of Crop Protection
Article 7, Volume 4, Issue 5, 2015, Pages 667-674    PDF (213.87 K)
DOI: 10.48311/jcp.2015.1248
Authors
Seyedeh Lavin Nourani1; Ebrahim Mohammadi- Goltapeh1; Naser Safaie* 1; Mokhtar Jalali Javaran2; Ebrahim Pourjam1; Masoud Shams- Bakhsh1; Farahnaz Jahanshahi Afshar3
1Department of Plant Pathology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran.
2Department of Plant Breeding and Biotechnology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran.
3Nematology Department, Iranian Research Institute of Plant Protection.
Abstract
Culture filtrates (CF) of two species of the nematophagous fungi, Arthrobotrys oligospora and Arthrobotrys conoidesat three concentrations (25%, 50% and 100%) of stock, were tested on the mortality of second stage juveniles (J2) and egg hatching rate of Meloidogyne incognita and Meloidogyne javanica. Results showed that the percent juvenile mortality was directly proportional to concentration of the filtrates. Egg hatching rate of these nematodes was inversely affected by increasing concentrations. Also CFs had various impacts on the mortality of J2 and egg hatching rate. In case of M. incognita maximum J2 mortality (28.98%) occurred after 24 hours of exposure to A. conoides filtrate at concentration of 100%. The minimum toxicity (12.5% J2 mortality) was recorded for A. oligospora at 25% filtrate concentration. At the same time, the highest rate of J2 mortality of M. javanica (19.18%) belonged to the 100% concentration of A. conoides, while minimum toxicity belonged to 25% concentration of A. oligospora causing 9.09% mortality. Maximum egg hatching rate for M. incognita (30.75%) belonged to control and minimum hatching rate (1.25%) belonged to 100% concentration of A. conoides. The highest hatching rate of M. javanica (36.25%)belonged to control and minimum hatching rate (1.25%) occurred at 100% concentration of A. conoides.
Keywords
Arthrobotrys oligospora; A. conoides; culture filtrate; mortality; egg hatching rate, Meloidogyne incognita; M. javanica
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