Comparative study of Fusarium oxysporum f sp. lycopersici and Meloidogyne incognita race-2 on plant growth parameters of tomato

Safiuddin  , Sheila Shahab, Mohd. Mazid, Dania Ahmed

Section of Plant Pathology and Nematology, Aligarh Muslim University, Aligarh-202002, Uttar Pradesh, INDIA.
Section of Plant Physiology Department of Botany, Aligarh Muslim University, Aligarh-202002, Uttar Pradesh, INDIA.

DOI: 10.4236/as.2012.36102                

Abstract

Many species of soil-inhabiting fungus Fusarium, cause severe yield loss in many crops. Experiments were conducted in net house condition with complete randomized block design to determine the individual effect of different in-oculum levels of root-knot nematode, Meloidogyne incognita, Race-2 and Fusarium oxysporum f sp. lycopersici on plant growth parameters viz., Plant length, fresh and dry weight and number of fruits of tomato var. P21. The experimental results showed that both the pathogens cause significant reduction in plant growth parameters. However, the fungus was not much effective on plant growth parameters in comparison to root-knot nematode. Greatest reduction in plant growth parameters was recorded in plants inoculated with 8000 J₂/Kg soil of Meloidogyne in-cognita race 2. The threshold level of root-knot nematode was 1000 J₂/kg soil while threshold level of Fusarium was @ 1 g/Kg soil. Inoculum level of Fusarium oxysporum f sp. lycopersici and Meloidogyne in-cognita race-2 was pathogenic and caused significant reduction at and above 1 g/kg soil and 1000 J₂/Kg soil respectively.

Keywords

Fusarium oxysporum f sp. lycopersici; Meloidogyne incognita Race-2; Tomato and Threshold Level

Conflicts of Interest

The authors declare no conflicts of interest.

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