A field experiment was conducted in the 2 × 3 m plots to determine the effect of different initial population densities of Meloidogyne javanica on growth parameters and yield of okra (Abelmoschus esculentus; cv. Soltani) in 2013. This research was carried out based on completely randomized design (CRD) with five replications using a geometric series of 14 nematode population densities (0 to 512 eggs or second stage juveniles (J2) / cm3 soil). The plants died at high levels of nematode population (> 256). The relative shoot fresh and dry weight and relative yield fitted the Seinhorst damage model and the tolerance limit for those traits was 0.34, 0.33 and 0.28 eggs or J2 / cm3 soil, respectively. The maximum multiplication rate was 749 and the equilibrium density was 159 eggs or J2 / cm3 soil. Nematode reproduction factor was negatively correlated with the initial populations as the highest multiplication was occurred at the lowest initial population densities. Damage threshold (10% yield loss) of okra to M. javanica was estimated as 0.85 eggs or J2 / cm3 soil which represented the susceptibility of okra plant to M. javanica.
Ahmadi, H. and Moosavi, M. (2017). The relationship of initial population densities of Meloidogyne javanica and damage level on okra (Abelmoschus esculentus). Iranian Journal of Plant Pathology, 53(4), 385-398.
MLA
Ahmadi, H. , and Moosavi, M. . "The relationship of initial population densities of Meloidogyne javanica and damage level on okra (Abelmoschus esculentus)", Iranian Journal of Plant Pathology, 53, 4, 2017, 385-398.
HARVARD
Ahmadi, H., Moosavi, M. (2017). 'The relationship of initial population densities of Meloidogyne javanica and damage level on okra (Abelmoschus esculentus)', Iranian Journal of Plant Pathology, 53(4), pp. 385-398.
CHICAGO
H. Ahmadi and M. Moosavi, "The relationship of initial population densities of Meloidogyne javanica and damage level on okra (Abelmoschus esculentus)," Iranian Journal of Plant Pathology, 53 4 (2017): 385-398,
VANCOUVER
Ahmadi, H., Moosavi, M. The relationship of initial population densities of Meloidogyne javanica and damage level on okra (Abelmoschus esculentus). Iranian Journal of Plant Pathology, 2017; 53(4): 385-398.
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