Author
Listed:
- Rana Muhammad Amir Gulzar
(Laboratory of Molecular Biology of Plant Disease Resistance, Institute of Biotechnology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, P.R. China
Department of Plant Pathology, Bahauddin Zakariya University, Multan, Pakistan)
- Ateeq Ur Rehman
(Department of Plant Pathology, Bahauddin Zakariya University, Multan, Pakistan)
- Ummad Ud Din Umar
(Department of Plant Pathology, Bahauddin Zakariya University, Multan, Pakistan)
- Muhammad Shahid
(Plant Pathological Research Institute, Ayub Agricultural Research Institute, Faisalabad, Pakistan)
- Muhammad Fahad Khan
(Department of Plant Pathology, Bahauddin Zakariya University, Multan, Pakistan)
Abstract
Meloidogyne spp. is an important pest of cucurbits in tunnel farming of vegetables in Pakistan. A cucumber germplasm was evaluated for resistance against the root-knot nematode (RKN, Meloidogyne incognita) based on the number of galls and egg masses recorded under glass house conditions. All the cucumber accessions showed varying responses towards the RKN inoculation. Out of the fifteen cucumber lines, two were found to be moderately susceptible to M. incognita, ten were susceptible while the other three were highly susceptible. For the management of the nematodes, resistance was induced in a highly susceptible cucumber accession (28294) by the application (both drench and foliar) of elicitors, i.e., salicylic acid (SA) and benzothiadiazole (BTH). The application of SA and BTH significantly enhanced the defence mechanism of the cucumber plants when compared to the control. Increased enzymatic activities in the cucumber plants as the result of the elicitor applications were determined through spectrophotometer to correlate the induced resistance. There was a significant increase in the enzymatic activities when compared to the control in the cucumber plants, which ultimately enhanced the resistance as there was a decrease in the number of galls and egg masses per plant. The enzymatic antioxidant activity was also found to increase in response to the nematode infection. Both SA and BTH were reported to play pivotal roles in inducing resistance in cucumber plants against M. incognita.
Suggested Citation
Rana Muhammad Amir Gulzar & Ateeq Ur Rehman & Ummad Ud Din Umar & Muhammad Shahid & Muhammad Fahad Khan, 2022.
"Evaluation of genetic and induced resistance phenomena in cucumbers against the root-knot nematode (Meloidogyne incognita),"
Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 58(4), pages 338-350.
Handle:
RePEc:caa:jnlpps:v:58:y:2022:i:4:id:130-2021-pps
DOI: 10.17221/130/2021-PPS
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