An integrated approach to the management of rice root knot nematode, Meloidogyne graminicola in Sri Lanka

Amarasinghe, L.D.

doi:10.4038/josuk.v6i0.4221

Cited by 6 publications

(4 citation statements)

References 5 publications

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“…Besides alternative hosts and irrigation, the soil type influenced the tolerance of plants to Mg and showed differences in the multiplication of the nematode [ 91 ]. Studies have also revealed that infestation levels depend on the rice cultivar [ 117 , 118 ], and the aggressiveness differs between populations, suggesting intraspecific variability [ 35 , 119 ]. It was also found that Mg consists of more than one race.…”

Section: Damage/crop Losses In Ricementioning

confidence: 99%

Meloidogyne graminicola—A Threat to Rice Production: Review Update on Distribution, Biology, Identification, and Management

Rusinque

Maleita

Abrantes

et al. 2021

Biology

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Rice (Oryza sativa L.) is one of the main cultivated crops worldwide and represents a staple food for more than half of the world population. Root-knot nematodes (RKNs), Meloidogyne spp., and particularly M. graminicola, are serious pests of rice, being, probably, the most economically important plant-parasitic nematode in this crop. M. graminicola is an obligate sedentary endoparasite adapted to flooded conditions. Until recently, M. graminicola was present mainly in irrigated rice fields in Asia, parts of the Americas, and South Africa. However, in July 2016, it was found in northern Italy in the Piedmont region and in May 2018 in the Lombardy region in the province of Pavia. Following the first detection in the EPPO region, this pest was included in the EPPO Alert List as its wide host range and ability to survive during long periods in environments with low oxygen content, represent a threat for rice production in the European Union. Considering the impact of this nematode on agriculture, a literature review focusing on M. graminicola distribution, biology, identification, and management was conducted.

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Section: Damage/crop Losses In Ricementioning

confidence: 99%

Meloidogyne graminicola—A Threat to Rice Production: Review Update on Distribution, Biology, Identification, and Management

Rusinque

Maleita

Abrantes

et al. 2021

Biology

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“…Moreover, some mechanisms are involved for the explanation of toxic effect of the tested organic amendments such as the release of ammonia, fatty acids, induce the plant tolerance and create unsuitable atmosphere in the soil for nematode behavior (Thoden et al, 2011;Chindo et al, 2012). In addition, soil amended with organic materials will promote plant growth due to the availability of nutrients during the decomposition of these amendments which significantly inhibited the nematode population (Amarasinghe, 2011). Phytochemical constituents released during the decomposition of B. spectabilis were cyanogenic glycosides, quinones, saponins, triterpenoids, flavonoids, alkaloids, sterols, tannins, furanoids and phenols (Francisco and Pinotti 2000;Umamaheswari et al, 2008).…”

Section: Statistics Analysismentioning

confidence: 99%

Assessing the Potential of Some Egyptian Plants as Soil Amendments in Meloidogyne Incognita Management on Tomato

Ibrahim,

Radwan,

Saad

et al. 2018

JBiopest

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In a pot experiment, dried plant materials of Brassica oleracea, Bougainvillea spectabilis, Emex spinosa and Erythrina humina were mixed with soil at the rate of 5 and 10 g/kg soil and compared their nematicidal potential with oxamyl, against the root-knot nematode, Meloidogyne incognita infecting tomato plants under greenhouse conditions. In addition, their effects on the growth of tomato plants were also assessed. The results showed that all the amendments exhibited varying degree of reduction compared to control. Moreover, Erythrina humenea recorded the highest reductions in galls/ root system (96.77%), egg masses/ root system (97.99%), eggs/ mass (77.11%) and soil populations/250g soil (93.60%). Except E. spinosa, employing high rate of the tested dried plants gave higher activity in suppressing the nematode parameters than the low rate. Besides highly nemato-toxic potential, B. oleracea, B. spectabilisor, E. spinosa showed phytotoxic effects on tomato when used at the high rate. These dried plant materials at low rate show promising nematicidal activity and may offer possibilities as non-chemical alternatives for the management of M. incognita on tomato.

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“…It has been found that there is a decline of rice yield when more than 75% of the roots of an infested plant is affected by nematodes (Nugaliyedde et al, 2001). Experiments have proven that infestation level varies based on the rice variety (Amarasinghe, 2011;Amarasinghe et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

“…Use of resistant rice varieties can also be implemented to keep the nematode population under control. Bg 352, Bg 300 and Bg 357 are some of the existing rice varieties identified as resistance to the nematode infestation in Sri Lanka (Amarasinghe et al, 2011). Several indices have been developed to identify the level of resistance of different crop varieties.…”

Section: Introductionmentioning

confidence: 99%

Meloidogyne graminicola infestation in selected Sri Lankan rice varieties, Oryza sativa L.. and nemato-toxic effect of Trichoderma viride to reduce infectivity

Amarasinghe

Hemachandra

2020

J Sci.Univ.Kelaniya

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Meloidogyne graminicola is a nematode parasite of rice, Oryza sativa L., in some rice growing areas in Sri Lanka. M. graminicola infestation levels in eight rice varieties namely Bg 407, Bg 366, Bg 403, Bg 251, Bg 369, Bg 380, Bg 310, and Bg 745 and nematotoxic effect of Trichoderma viride against the nematode infectivity in a susceptible rice variety were evaluated in this study. Results revealed that varieties Bg 366 and Bg 251 were susceptible; varieties Bg 407, Bg 369, Bg 380, Bg 310, and Bg 745 were moderately susceptible while Bg 403 was moderately resistant to M. graminicola. There was a significant reduction of root galls (p = 0.000) and weight of the fresh roots (p = 0.001) of T.viride treated Bg 366 susceptible rice variety compared to the untreated tillers of the same rice variety. This study concludes that none of the rice varieties tested were totally resistant to M. graminicola infestation, hence, T. viride treatment can be integrated into nematode management practices to reduce the nematode population in susceptible rice varieties.

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An integrated approach to the management of rice root knot nematode, Meloidogyne graminicola in Sri Lanka

Abstract: This study was carried out to design tools for integrated management of root knot nematode, Meloidogyne graminicola, in rice in Sri Lanka. Rice varieties namely, At5,

Cited by 6 publications

References 5 publications

Meloidogyne graminicola—A Threat to Rice Production: Review Update on Distribution, Biology, Identification, and Management

Meloidogyne graminicola—A Threat to Rice Production: Review Update on Distribution, Biology, Identification, and Management

Assessing the Potential of Some Egyptian Plants as Soil Amendments in Meloidogyne Incognita Management on Tomato

<em>Meloidogyne graminicola</em> infestation in selected Sri Lankan rice varieties, <em>Oryza sativa</em> L.. and nemato-toxic effect of <em>Trichoderma viride</em> to reduce infectivity

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