Loading...

Research on Crops

Relationship between soil factors with Helicotylenchus pseudorobustus isolated from tomato fields in Limpopo Province, South Africa 


DOI: 10.31830/2348-7542.2024.ROC-1067    | Article Id: ROC-1067 | Page : 324-327
Citation :- Relationship between soil factors with Helicotylenchus pseudorobustus isolated from tomato fields in Limpopo Province, South Africa. Res. Crop. 25: 324-327
GAVIN GELDENHUYS gavin.geldenhuys@ul.ac.za
Address : Aquaculture Research Unit, School of Agricultural and Environmental Sciences, University of Limpopo, Private Bag X1106, Sovenga, 0727, South Africa
Submitted Date : 27-02-2024
Accepted Date : 29-04-2024
Online Published:

Abstract

Helicotylenchus pseudorobustus is one of the tomato fields' most important plant-parasitic nematodes. In this study, the soil was sampled in 2023. The identification and determination of nematodes was made in the Aquaculture Research Unit at the University of Limpopo. During the investigation of this nematode in the Tzaneen region, the properties of soils infected with this nematode, including pH and EC, were investigated. The population of H. pseudorobustus was counted in 100 grams of soil in each season, and soil characteristics were also analysed at the same time. The results in different seasons of the year showed that the range of pH changes during the year of investigation was between 5.2 and 6.6, and the range of EC changes was between 2.9 and 4.3 mS. A comparison of EC and pH changes with population changes showed that the population increased approximately in the months when soil salinity decreased. In addition, soil structure (71.9% sand, 8.0% silt, and 20.1% clay) didn't influence the H. pseudorobustus population. However, the results showed no significant relationship between soil factors and the population dynamic of H. pseudorobustus nematode throughout the year.

Keywords

Dynamic Helicotylenchus nematode soil tomato 

References

Adão, H., Alves, A. N., Patricio, J., Neto, J. M., Costa, M. J. and Marques, J. C. (2008). Spatial distribution of subtidal Nematoda communities along the salinity gradient in southern European estuaries. Acta Oecologica 35: 287-300.  doi:10.1016/j.actao.2008.11.007.
Baermann, G. (1917). Eine einfache Methode zur Auffindung von Ankylostomum (Nematoden) Larven in Erdproben. Geneeskunding Tijdschrift voor Nederlandsch-Indië 57: 131-37.
De Grisse, A. T. (1969). Contribution to the Morphology and the Systematics of the Criconematidae (Taylor, 1936) Thorne, 1949. Faculty of Agricultural Sciences, Gent, Belgium. pp. 35.  
Geldenhuys, G. (2023). Effect of soil factors on plant-parasitic nematode associated with tomato (Solanum lycopersicum), case study in Limpopo Province, South Africa. Res. Crop. 24: 571-74. doi:10.31830/2348-7542.2023.
Marais, M. (2001). A monograph of the genus Helicotylenchus Steiner, 1945 (Nemata: Hoplolaimidae). Ph.D. Dissertation, University of Stellenbosch, Stellenbosch, South Africa.  
Moens, T. and Vincx, M. (2000). Temperature and salinity constraints on the life cycle of two brackish-water nematode species. J. Exp. Mar. Biol. Ecol. 243: 115-35. doi:10.1016/ S0022-0981(99)00113-6.
Nisa, R. U., Nisa, A. U., Hroobi, A. A., Shah, A. A. and Tantray, A. Y. (2022). Year-long assessment of soil nematode diversity and root inhibition-indicator nematode genera in rice fields. Biology 11: doi:10.3390/biology11111572.
Pang, W., Luc, J. E., Crow, W. T., Kenworthy, K. E., McSorly, R., Kruse, J. K. and Giblin-Davis, R. M. (2011). Responses of seashore paspalum cultivars to sting and spiral nematodes. Crop Sci. 51: 2864-67.  doi:10.2135/cropsci2011.02.0113.
Rowell, D. L. (1994). Soil Science: Methods and Applications. Longman Group, Harlow. pp. 345. doi:10.1002/jsfa.2740660423.
Shokoohi, E. (2022). Observation on Hemicriconemoides brachyurus (Loof, 1949) Chitwood & Birchfield, 1957, associated with grass in South Africa. Helminthologia 59: 210-16. doi:10.2478/helm-2022-0019.
Shokoohi, E., Marais, M., Hendrika, F. and Panahi, H. (2018). Morphological and molecular characterization of three Helicotylenchus species from Iran. Zootaxa 4388: 207-20. doi:10.11646/zootaxa.4388.2.4.
 
 
 
 
 
 
 
 

Global Footprints