Suitable Hosts of Root Knot Nematode Attack: An Assessment on the Basis of Morphological Size Variations and Population Density under Field Conditions

Gamini Sahu, Surendra K. Gautam, Aditi N. Poddar


Root knot nematodes (Meloidogyne species) are major pests of vegetable crops causing serious losses in quantity and quality of crop yield. This study involves an assessment of their suitable hosts on the basis of variations in their population densities and body sizes in different vegetable crop plants under field conditions. A random survey of root knot nematode infestation in vegetable crops was conducted in 9 villages of Abhanpur block, Chhattisgarh state, Central India, from January 2012 to March 2012.  Diseased plants were identified on the basis of above ground symptoms and soil and root samples collected by digging. Extraction of nematodes was done by Cobb’s sieving and decantation method and Baerman’s funnel technique. Identification was done microscopically by morphological examination of perineal patterns of female nematodes. Body sizes were measured by using an eyepiece/ocular micrometer. Twenty nine percent of the total farm area surveyed suffered from root knot nematode attack. Among the several genera of vegetable crop plants surveyed, Lycopersicon esculentum, Dolichos lablab, Solanum melongena, Momordica charantia, Daucus carota,Capsicum annum,Cucumis sativus had root galls. Three species of root knot nematodes Meloidogyne incognita, M. javanica, M. areneria were identified from the above hosts and a comparative morphometric analysis of the body, head and neck size ratios of females were done. Non-significant body and head size variations existing between the females from D. lablab, S. melongena, C. annum, D. carota, L. esculentum showed that all the crops are equally susceptible to root knot nematode attack.  However, on the basis of nematode population density, D. carrota appears to be the best suitable host of the Meloidogyne species other than L. esculentum and S. melongena.


Population density; size variations; Meloidogyne spp


Adegbite, A. A., S. O. Adesiyan, G. O. Agbaje and O. O. Omoloye. 2005. Host suitability of crops under Yam intercrop to root-knot nematode (Meloidogyne incognita Race 2) in South-Western Nigeria. Jour. Agric. Rural Develop. in the Tropics and Subtropics(JARTS). 106: 113–118.

Ahmed, N. and M. S. Jairajpuri. 1981. Statistical analysis of variability in a population of Parahadronchus shakili (Nematoda), Nematol. Medit. 9: 163-173.

Araya, M. and E. P. Caswell-Chen. 1994. Host Status of Crotalaria juncea, Sesamum indicum, Dolichos lablab, and Elymus glaucus to Meloidogyne javanica, J. Nematol. 26(4):492-497.

Cervantes-Flores, J. C., G. C. Yencho and E. L. Davis. 2002. Host reactions of Sweet potato genotypes to root-knot nematodes and variation in virulence of Meloidogyne incognita populations. HortScience. 37(7): 1112–1116.

Davide, R. G. 1980. Influence of different crops on the dimensions of Meloidogyne arenaria isolated from fig. Proc. Helminth. Soc. Wash. 47: 80-84.

Davis, R. M. G., A. W. Meerow and F. G. Bilz. 1992. Host suitability of Ixora spp. for the Root-knot nematodes Meloidogyne incognita Race 1 and M. javanica. J. Nematol. 24(4S): 722–728.

Gautam, S. K., G. Sahu, B. K. Verma and A. N. Poddar. 2014. Status of root-knot nematode (Meloidogyne species) disease in vegetable crops of some districts of central plain region of Chhattisgarh state, India. Afr. Jour. Microbiol. Res. 8:1663-1671.

Gutiérrez-Gutiérrez, C., J. E. Palomares-Rius, R. M. Jiménez-Díaz and P. Castillo. 2011. Host suitability of Vitis rootstocks to root-knot nematodes (Meloidogyne spp.) and the dagger nematode Xiphinema index and plant damage caused by infections. Plant Pathol. 60: 575–585.

Pant, V., S. P. Singh, S. Hakim and S. K. Saxena. 1983. Development of Root knot nematode and morphometrics of the females of the nematode Meloidogyne incognita, as influenced by different Cucurbits. Indian Jour. Nematol.13: 79-83.

Powers, L. E., R. A. Dunn and R. Mcsorley. 1991. Size differences among root-knot nematodes on resistant and susceptible Alyce clover genotypes. J. Nematol. 23:243-248.

Sahu,R., P.Chandra and A.N. Poddar. 2011. Community analysis of plant parasitic nematodes prevalent in vegetable crops in district Durg of Chhattisgarh, India. Res. Jour. Parasitol. 6: 83-89.

Sajid, A. K., J. Nazir, M. Kamran, I. U. Haq, and M. A. Haq. 2011. Invasion and development of Meloidogyne incognita race 1 in different cultivars. Pak. J. Nematol. 29:63-70.

Saleh, N. A., A. S. Al-Hazmi, F. A. Al-Yahya and A. A. M. Dawabah. 2009. Host suitability of different green bean cultivars to Meloidogyne incognita. In: 10th Arab congress of Plant Protection. Beirut, Lebanon, 26-30, October 2009. Abstracts book, Arab Journal of Plant Protection. (N11), pg E99.

Sao, R., P. Chandra and A. N. Poddar. 2008. Prevalence of root knot nematode (Meloidogyne incognita) infection in vegetable crops in Chhattisgarh. Bio Nature. 28 : 61-67.

Southey, J. F.1986. Laboratory methods for work with plant parasitic and soil nematodes. Ministry of Agriculture, Fish and food, HMSO, London. 202.

Taylor, D. P., and Netscher, C. 1974. An improved technique for preparing perineal patterns of Meloidogyne spp. Nematologica. 20(2), 268-269.

Zhang, F. and D. P. Smith. 1994. Host status of 32 plant species to Meloidogyne konaensis. J Nematol. 26(4S): 744–748.

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DOI: 10.33687/phytopath.004.02.1239


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