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Reproduction of Meloidogyne enterolobii on Onion and Potential Yield Suppression Cover

Reproduction of Meloidogyne enterolobii on Onion and Potential Yield Suppression

Open Access
|Apr 2025

Figures & Tables

Figure 1:

Root gall indices for cultivars of onion following M. enterolobii inoculation (0 to 10 scale). Bars represent the Root Gall Index (mean ± standard error). Values are pooled data from two trials. Bars with the same letter are not significantly different according to Tukey's HSD test (α = 0.05).
Root gall indices for cultivars of onion following M. enterolobii inoculation (0 to 10 scale). Bars represent the Root Gall Index (mean ± standard error). Values are pooled data from two trials. Bars with the same letter are not significantly different according to Tukey's HSD test (α = 0.05).

Figure 2:

Effect of Meloidogyne enterolobii on fresh bulb weights of onion cultivars. Bars represent the fresh bulb weight (mean ± standard error). Values are pooled data from two trials. Two independent t-tests were done in two samples to identify differences between inoculated and non-inoculated control treatments. * and *** represent the 5% and 0.1% level of significance, respectively.
Effect of Meloidogyne enterolobii on fresh bulb weights of onion cultivars. Bars represent the fresh bulb weight (mean ± standard error). Values are pooled data from two trials. Two independent t-tests were done in two samples to identify differences between inoculated and non-inoculated control treatments. * and *** represent the 5% and 0.1% level of significance, respectively.

Figure 3:

Effect of Meloidogyne enterolobii on fresh shoot weights of onion cultivars. Bars represent the fresh shoot weight (mean ± standard error). Values are pooled data from two trials. Two sample-independent t-tests were done to identify differences between inoculated and non-inoculated control treatments. * and *** represent the 5% and 0.1% level of significance, respectively.
Effect of Meloidogyne enterolobii on fresh shoot weights of onion cultivars. Bars represent the fresh shoot weight (mean ± standard error). Values are pooled data from two trials. Two sample-independent t-tests were done to identify differences between inoculated and non-inoculated control treatments. * and *** represent the 5% and 0.1% level of significance, respectively.

Figure 4:

Effect of Meloidogyne enterolobii on dry shoot weights of onion. Bars represent the fresh bulb weight (mean ± standard error). Values are pooled data from two trials. Two sample independent t-tests were done to identify differences between inoculated and non-inoculated control treatments. * and *** represent the 5% and 0.1% level of significance, respectively.
Effect of Meloidogyne enterolobii on dry shoot weights of onion. Bars represent the fresh bulb weight (mean ± standard error). Values are pooled data from two trials. Two sample independent t-tests were done to identify differences between inoculated and non-inoculated control treatments. * and *** represent the 5% and 0.1% level of significance, respectively.

Susceptibility of ten onion cultivars to Meloidogyne enterolobii_

Onion cultivarsNumber of eggs/roots systemNumber of eggs/grams of rootReproduction factor (Rf)x



Trial 1Trial 2Trial 1Trial 2Trial 1Trial 2
Monjablanca17,190y abz10,560 b2,223 ab1,447 b4.78 ab3.38 b
Rio del Sol16,280 ab12,978 b1,982 ab1,596 b4.52 ab4.16 b
Sapelo11,546 b13,667 b1,407 b1,709 b3.21 b4.58 b
Sweet Magnolia11,997 b11,574 b1,474 b1,441 b3.33 b3.71 b
Tania22,999 ab28,160 a2,806 ab3,657 a6.39 ab9.03 a
Vidora27,930 a20,915 ab3,406 a2,477 ab7.76 a6.70 ab
NUN 101121,137 ab20,519 ab2,632 ab2,374 ab5.87 ab6.58 ab
Red Duke20,322 ab20,415 ab2,257 ab2,258 ab5.64 ab6.54 ab
Red Halen21,373 ab17,883 ab2,466 ab2,042 ab5.94 ab5.73 ab
Red Maiden17,947 ab16,090 ab2,145 ab1,886 b4.99 ab5.16 ab

P-value0.010.00120.02510.00420.010.0012
DOI: https://doi.org/10.2478/jofnem-2025-0005 | Journal eISSN: 2640-396X | Journal ISSN: 0022-300X
Language: English
Submitted on: Sep 24, 2024
Published on: Apr 22, 2025
Published by: Society of Nematologists, Inc.
In partnership with: Paradigm Publishing Services
Publication frequency: 1 times per year

© 2025 Nabin Poudel, Richard F. Davis, Ted McAvoy, Bhabesh Dutta, Intiaz Amin Chowdhury, published by Society of Nematologists, Inc.
This work is licensed under the Creative Commons Attribution 4.0 License.