Changes in the population density of root-knot nematodes in fall cropping of oat with different planting dates

Tateishi, Yasushi; Katsura, Masaaki; Iwahori, Hideaki; Uesugi, Kentaro

doi:10.3725/jjn.41.19

Cited by 3 publications

(1 citation statement)

References 2 publications

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“…Penetration of infective juveniles (J2) in the roots was correlated with temperature (Maleita et al, 2012 Oat genotype resistance to M. incognita and M. javanica agrees with that found for white oat to other Meloidogyne species, but with some variability (Karajeh et al, 2011;Carneiro et al, 2006). In Japan, M. incognita and M. arenaria populations decreased in white oat 'Tachiibuki' grown in naturally infested soil (Tateishi et al, 2011). The resistance of the 'URS Guria' and 'URS Tarimba' genotypes to both nematodes has been reported (Machado et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

Oat, Wheat, and Sorghum Genotype Reactions to Meloidogyne incognita and Meloidogyne javanica

Brida

Correia

Castro

et al. 2017

Journal of Nematology

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Meloidogyne spp. are the most economically important species of plant-pathogenic nematodes. Plant resistance and crop rotation are the main nematode management methods. Thus, the objective was to evaluate the resistance of seven wheat genotypes, five oat genotypes, ten sorghum hybrids, and three sorghum-sudangrass genotypes to Meloidogyne incognita and Meloidogyne javanica. The crops were sowed in pots with an autoclaved substrate. A single plant/pot was left after thinning. The soil was infested with 5,000 eggs of the studied nematodes. Tomato (cv. Rutgers) plants were used as the standard for nematode susceptibility. The evaluations were conducted 60 d after inoculation. Gall and egg-mass indexes were obtained according to a 0-5 scale. Plants with a reproduction factor higher than 1.0 were classified as susceptible (S) and lower than 1.0 as resistant (R). Wheat and oat genotypes did not allow M. incognita and M. javanica reproduction, proving resistance to these organisms. Sorghum genotypes had different reactions to M. incognita and M. javanica. The tomato (cv. Rutgers) plants demonstrated the viability of the nematode inoculum for the three crops. The wheat and oat genotypes and the sorghum hybrids 'BRS-610', 'BRS-800', and '307.343' can be used in crop rotation systems for M. incognita and M. javanica management.

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Section: Discussionmentioning

confidence: 99%

Oat, Wheat, and Sorghum Genotype Reactions to Meloidogyne incognita and Meloidogyne javanica

Brida

Correia

Castro

et al. 2017

Journal of Nematology

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Characterisation of root-knot nematode resistance in black oat, Avena strigosa, ‘Terara’

et al. 2021

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Summary The mechanism of root-knot nematode (RKN) resistance in black oat ‘Terara’ and its stability under high temperatures were examined. To investigate the suppressive mechanism, we observed root invasion and development of RKN in ‘Terara’. Juveniles of Meloidogyne incognita, M. arenaria and M. javanica successfully invaded roots of ‘Terara’ 3 days after inoculation (DAI), whereas juveniles of M. hapla were hardly observed in black oat roots. The total number of M. incognita and the ratio of successfully developing juveniles were significantly lower in roots of ‘Terara’ than a susceptible cultivar from 7 DAI. A number of M. incognita developed to sausage-shaped juveniles in ‘Terara’; however, juveniles beyond that stage were seldom observed. Histological observation of feeding sites suggested the poor development of giant cells was involved in this arrested development. Juveniles of M. arenaria and M. javanica also only developed to the sausage-shaped stage at 21 DAI. These observations indicated that ‘Terara’ and resistant common oat cultivars suppressed RKN in a similar way. The effect of high temperature on resistance was evaluated using ‘Terara’ cultivated at 30°C throughout the experiment and at 32°C for the initial 5 DAI. The number of egg masses of M. incognita under the 32°C treatment was slightly higher than the 25°C control. However, it was still suppressed to 4.9% of the susceptible cultivar.

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Arable and Livestock Corporation Trial in the Upland Fields of the Southern Kyushu Region:

ADACHI,

TATEISHI,

UESUGI

et al. 2023

Japanese Journal of Farm Work Research

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Changes in the population density of root-knot nematodes in fall cropping of oat with different planting dates

Cited by 3 publications

References 2 publications

Oat, Wheat, and Sorghum Genotype Reactions to Meloidogyne incognita and Meloidogyne javanica

Oat, Wheat, and Sorghum Genotype Reactions to Meloidogyne incognita and Meloidogyne javanica

Characterisation of root-knot nematode resistance in black oat, Avena strigosa, ‘Terara’

Arable and Livestock Corporation Trial in the Upland Fields of the Southern Kyushu Region:

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