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Root-knot Nematodes (Meloidogyne spp.) Infecting Peach (Prunus persica L.) in the Pothwar Region of Pakistan
Muhammad Saeed1 , Tariq Mukhtar 2
1- Wheat Research Sub-Station, Murree, Rawalpindi, PakistanDepartment of Plant Pathology, Pir Mehr Ali Shah Arid Agriculture, University Rawalpindi, Pakistan
2- Department of Plant Pathology, Pir Mehr Ali Shah Arid Agriculture, University Rawalpindi, Pakistan , drtmukhtar@uaar.edu.pk
Abstract:   (72 Views)
The overall incidence of 19.8% and prevalence of 65.7% of root-knot nematodes on peach was recorded in the Pothwar region of Pakistan. As regards districts, the maximum prevalence (71.43%) and incidence (34.29%) were observed in district Attock and the minimum (50.5 and 10% respectively) was found in district Islamabad. During the survey, five peach varieties were encountered in the region. The maximum incidence of root-knot nematodes was recorded on Florida King whereas, the minimum incidence of 15% was observed on Local Aroo. Two species of root-knot nematode (Meloidogyne incognita and M. javanica) were found infecting peach in the region. The overall prevalence of M. javanica was recorded to be higher as compared to M. incognita. M. javanica was found dominant in all the districts except Attock where M. incognita was observed in dominance. No infestation of M. incognita was recorded in district Islamabad. As a sole population, M. incognita was found in 26.09% and M. javanica in 43.48% root-knot infested peach orchards. On the other hand, as mixed population, both the species were recorded in 30.43% infected orchards. The overall galling index of root-knot nematodes in the region was 1.33. Maximum galling index was found in district Attock while it was found to be the minimum in Islamabad district. Similarly, Early Grand showed the maximum galling index of 1.46 while it was the minimum on Local Aroo. No galling index was observed on Florida Gold and Aroo-5 as these cultivars were found free of root-knot nematode infestation.
 
Keywords: Meloidogyne spp., incidence, prevalence, galling index, Prunus persicae
Full-Text [PDF 479 kb]   (56 Downloads)    
Article Type: Original Research | Subject: Plant Protection/Plant Nematology
Received: 2022/09/30 | Accepted: 2023/06/25 | Published: 2024/03/31
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